Update repositories

crash related to making a render target with a color attachment 0x0

.gitea/workflows/buildtest.yml

@@ -17,8 +17,6 @@ jobs:
       - run: echo "The ${{ gitea.repository }} repository has been cloned to the runner."
       - run: echo "The workflow is now ready to run your tests on the runner."
       - run: echo "Install toolchain and run ReCI build test"
-      - run: apt-get update && apt-get install -y git && git clone $RECI_GIT $RECI
-      - run: bash $RECI/scripts/setup_build_tools.sh
-      - run: bash reci/scripts/install_build_dependencies.sh
-      - run: bash $RECI/scripts/run_buildtest.sh ${{ gitea.repository }}
+      - run: apt-get update && apt-get install -y lua5.3 git libxrandr-dev && git clone $RECI_GIT $RECI
+      - run: lua $RECI/reci.lua -f $RECI/scripts/buildtools.reci -f reci/scripts/builddeps.reci -f $RECI/scripts/buildtest.reci
       - run: echo "This job's status is ${{ job.status }}."

.gitignore

@@ -1,2 +1,4 @@
 /cmake-build-debug
 /.idea
+
+/assets/test_files

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.18)
+cmake_minimum_required(VERSION 3.18..3.27)
 project(JGL
     VERSION 1.0
     LANGUAGES CXX
@@ -14,30 +14,37 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 # Enable Package Managers
 include(cmake/CPM.cmake)
 
+
+CPMAddPackage(
+        NAME mcolor
+        URL https://git.redacted.cc/maxine/mcolor/archive/Prerelease-4.zip
+)
+
 CPMAddPackage(
         NAME J3ML
-        URL https://git.redacted.cc/josh/j3ml/archive/Release-2.2.zip
+        URL https://git.redacted.cc/josh/j3ml/archive/3.4.3.zip
 )
 
 CPMAddPackage(
         NAME ReWindow
-        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-3.zip
+        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-26.zip
 )
 
 CPMAddPackage(
         NAME GLAD
-        URL https://git.redacted.cc/Redacted/glad/archive/v2.1ext_mt.zip
+        URL https://git.redacted.cc/Redacted/glad/archive/v2.1ext_fbo_depthtexture_shadow.zip
 )
 
 CPMAddPackage(
         NAME jlog
-        URL https://git.redacted.cc/josh/jlog/Prerelease-12.zip
+        URL https://git.redacted.cc/josh/jlog/Prerelease-16.zip
 )
 
 CPMAddPackage(
-        NAME Event
-        URL https://git.redacted.cc/josh/Event/archive/Release-6.zip
+        NAME ReImage
+        URL https://git.redacted.cc/Redacted/ReImage/archive/Release-2.0.zip
 )
+
 if (WIN32)
     #CPMAddPackage(
             #NAME harfbuzz
@@ -50,6 +57,8 @@ if (WIN32)
     )
 endif()
 
+#set(CMAKE_CXX_FLAGS "-O3 -Wall -Wextra")
+
 file(COPY "assets" DESTINATION "${PROJECT_BINARY_DIR}")
 file(GLOB_RECURSE ASSETS  "assets/*")
 file(GLOB_RECURSE HEADERS "include/*.h" "include/*.hpp")
@@ -68,29 +77,35 @@ endif()
 
 set_target_properties(JGL PROPERTIES LINKER_LANGUAGE CXX)
 
+#Don't expose these ones.
+include_directories(
+        ${ReWindow_SOURCE_DIR}/include
+        ${Event_SOURCE_DIR}/include
+)
+
 target_include_directories(JGL PUBLIC
         ${PROJECT_SOURCE_DIR}/include
         ${OPENGL_INCLUDE_DIRS}
+        ${ReImage_SOURCE_DIR}/include
+        ${mcolor_SOURCE_DIR}/include
         ${J3ML_SOURCE_DIR}/include
-        ${Event_SOURCE_DIR}/include
-        ${ReWindow_SOURCE_DIR}/include
-        ${glad_SOURCE_DIR}/include
         ${jlog_SOURCE_DIR}/include
+        ${glad_SOURCE_DIR}/include
 )
 
 add_executable(JGL_Demo main.cpp)
 #set_target_properties(JGL_Demo PROPERTIES LINK_FLAGS "-Wl,-rpath,./lib")
 
 if (UNIX AND NOT APPLE)
-    target_include_directories(JGL PRIVATE ${FREETYPE_INCLUDE_DIRS})
+    target_include_directories(JGL PRIVATE ${FREETYPE_INCLUDE_DIRS} )
     target_link_libraries(JGL PRIVATE ${FREETYPE_LIBRARIES})
-    target_link_libraries(JGL PUBLIC ${OPENGL_LIBRARIES} J3ML ReWindowLibrary glad jlog Event)
+    target_link_libraries(JGL PUBLIC ${OPENGL_LIBRARIES} mcolor J3ML jlog ReImage glad)
 endif()
 
 if (WIN32)
     target_include_directories(JGL PRIVATE ${freetype_SOURCE_DIR}/include)
     target_link_libraries(JGL PRIVATE freetype)
-    target_link_libraries(JGL PUBLIC ${OPENGL_LIBRARIES} J3ML ReWindowLibrary glad jlog Event)
+    target_link_libraries(JGL PUBLIC ${OPENGL_LIBRARIES} mcolor J3ML glad jlog ReImage glad)
 endif()
 
-target_link_libraries(JGL_Demo PUBLIC JGL)
+target_link_libraries(JGL_Demo PUBLIC JGL ReWindowLibrary Event glad)

README.md

@@ -1,43 +1,77 @@
-# Josh Graphics Library
+# Josh's Graphics Library
 
 Yet Another C++ Rendering Toolkit
 
-![Static Badge](https://img.shields.io/badge/Lit-Based-%20)
+[![License: Unlicense](https://img.shields.io/badge/license-Unlicense-blue.svg)](http://unlicense.org/) ![Static Badge](https://img.shields.io/badge/Lit-Based-%20)
 
-## Goals
-* Provide single-function-calls to render various graphics primitives in 2D and 3D.
-* Integrated directly with our other toolkits (ReWindow, J3ML)
-* Quick Rendering of Debug Text, Geometric Widgets, Textures, and so forth.
-
-## Non-Goals
-* Full Rendering Engine
-* OpenGL/Vulkan Wrapper
-* Asset Loading & Management
 
 ## Features
 
-* Modern C++ (20)
-* Little-to-no overhead
-* No hand-holding
-* No-frills, straight up just renders shapes and text.
+* Modern C++ (20).
+* Cross Platform (Linux & Windows 10 1909 or newer).
+* Provides single-function-calls to render various graphics in 2D and 3D.
 * Integrates right into an existing OpenGL rendering system.
+* Quick Rendering of Text, Shapes, Sprites / Textures, etc.
+* High-performance text rendering.
+* Little-to-no overhead.
+
+## API Overview
+
+### J2D
+* DrawPoint
+* DrawLine / DrawGradientLine
+* DrawSprite / DrawPartialSprite
+* OutlineRect / FillRect / FillGradientRect / FillRoundedRect
+* OutlineCircle / FillCircle
+* OutlineTriangle / FillTriangle
+* DrawString
+
+### J3D
+* DrawLine
+* DrawString
+* DrawMatrixGizmo (WIP)
+* DrawAxisAngleGizmo (WIP)
+* DrawQuaternionGizmo (WIP)
+
+### Types
+* RenderTarget
+* VRamList
+* Texture
+* Font
 
 ## Usage
+```cpp
+// Makes sure the glViewport will be the correct size.
+// Typically done once per frame.
+JGL::Update(window_size);
 
-Install instructions and code samples coming soon :tm: !
+JGL::J2D::Begin();
+    JGL::J2D::FillRect(Colors::Blue, {0,0}, {16,16});
+JGL::J2D::End();
+
+// See the example program in main.cpp for more in-depth usage.
+```
+## Requirements
+
+An OpenGL 2.1 or newer accelerator with at-least two texture mappers that supports the `GL_ARB_framebuffer_object` extension or
+an implementation that can provide those features through alternative means (common on ArmSoC and Risc-V).
+
+## Compatability
+
+* AMD ✓
+* NVIDIA ✓
+* Intel ✓
+* Zink (OpenGL-on-Vulkan) ✓
+* GL4ES ✓
 
 ## Documentation
 
-Documentation is (sic: will be) automatically generated from latest commit and is hosted at https://doc.redacted.cc/jgl .
+Documentation is available [here](https://doc.redacted.cc/JGL/d3/dcc/md__r_e_a_d_m_e.html).
 
 ## Contributing
 
 Contributions to JGL are welcome! If you find a bug, have a feature request, or would like to contribute code, please submit an issue or pull request to our repository!
 
-## License
-
-JGL is licensed under the Public Domain. See the LICENSE file for details.
-
 ## Acknowledgements
 
 JGL is developed and maintained by Josh O'Leary @ Co from Redacted Software and contributors. Special thanks to Redacted.

assets/shader_programs/test_fragment.glsl

@@ -0,0 +1,5 @@
+#version 120
+
+void main() {
+        gl_FragColor = vec4(1, 1, 1, 1);
+}

assets/shader_programs/test_vertex.glsl

@@ -0,0 +1,7 @@
+#version 120
+
+attribute vec2 position;
+
+void main() {
+    gl_Position = vec4(position.x, position.y, 1.0, 1.0);
+}

include/JGL/Color3.h

@@ -1,24 +0,0 @@
-#pragma once
-
-#include <J3ML/J3ML.h>
-
-namespace JGL
-{
-    using namespace J3ML;
-    struct Color3 {
-        u8 r;
-        u8 g;
-        u8 b;
-        Color3 Lerp(const Color3& rhs, float alpha) const;
-        Color3(u8 R, u8 G, u8 B) : r(R), g(G), b(B) {}
-
-        u8 RedChannel  () const { return r; }
-        u8 GreenChannel() const { return g; }
-        u8 BlueChannel () const { return b; }
-        float RedChannelNormalized ()  const { return static_cast<float>(r) / 255.f;}
-        float BlueChannelNormalized()  const { return static_cast<float>(b) / 255.f;}
-        float GreenChannelNormalized() const { return static_cast<float>(g) / 255.f;}
-    };
-
-
-}

include/JGL/Color4.h

@@ -1,17 +0,0 @@
-#pragma once
-
-#include <JGL/Color3.h>
-
-namespace JGL
-{
-    class Color4 {
-    public:
-        explicit Color4(const Color3& color3, unsigned int alpha) {r = color3.r; g = color3.g; b = color3.b; a = alpha;}
-        Color4(int red, int green, int blue, int alpha = 127) : r(red), g(green), b(blue), a(alpha) {}
-        static Color4 FromColor3(const Color3& color3, unsigned int alpha = 127) {return Color4(color3, alpha);}
-        int r;
-        int g;
-        int b;
-        int a;
-    };
-}

include/JGL/Colors.h

@@ -1,178 +0,0 @@
-#pragma once
-
-
-#include <JGL/Color3.h>
-
-namespace JGL
-{
-    namespace Colors {
-        namespace Primary {
-            static const Color3 Red{255, 0, 0};
-            static const Color3 Green{0, 255, 0};
-            static const Color3 Blue{0, 0, 255};
-            static const Color3 White{255, 255, 255};
-            static const Color3 Black{0, 0, 0};
-            static const Color3 Gray{128, 128, 128};
-            static const Color3 DarkGray{192, 192, 192};
-            static const Color3 LightGray{64, 64, 64};
-            static const Color3 Yellow{255, 255, 0};
-        }
-        using namespace Primary;
-        namespace Reds {
-            static const Color3 Fuchsia {255, 0, 255};
-            static const Color3 LightSalmon{255, 160, 122};
-            static const Color3 Salmon{250, 128, 114};
-            static const Color3 DarkSalmon{233, 150, 122};
-            static const Color3 LightCoral{240, 128, 128};
-            static const Color3 IndianRed{205, 92, 92};
-            static const Color3 Crimson{220, 20, 60};
-            static const Color3 Firebrick{178, 34, 34};
-            static const Color3 DarkRed{139, 0, 0};
-        }
-        namespace Oranges {
-            static const Color3 Coral{255, 127, 80};
-            static const Color3 Tomato{255, 99, 71};
-            static const Color3 OrangeRed{255, 69, 0};
-            static const Color3 Gold{255, 215, 0};
-            static const Color3 Orange{255, 165, 0};
-            static const Color3 DarkOrange{255, 140, 0};
-        }
-        namespace Yellows {
-            static const Color3 LightYellow{255, 255, 224};
-            static const Color3 LemonChiffon{255, 250, 205};
-            static const Color3 LightGoldenrodYellow{250, 250, 210};
-            static const Color3 PapayaWhip{255, 239, 213};
-            static const Color3 Moccasin{255, 228, 181};
-            static const Color3 PeachPuff{255, 218, 185};
-            static const Color3 PaleGoldenrod{238, 232, 170};
-            static const Color3 Khaki{240, 230, 140};
-            static const Color3 DarkKhaki{189, 183, 107};
-        }
-        namespace Greens {
-            static const Color3 LawnGreen{124, 252, 0};
-            static const Color3 Chartreuse{127, 255, 0};
-            static const Color3 LimeGreen{50, 205, 50};
-            static const Color3 ForestGreen{34, 139, 34};
-            static const Color3 DarkGreen{0, 100, 0};
-            static const Color3 GreenYellow{173, 255, 47};
-            static const Color3 YellowGreen{154, 205, 50};
-            static const Color3 SpringGreen{0, 255, 127};
-            static const Color3 MediumSpringGreen{0, 250, 154};
-            static const Color3 LightGreen{144, 238, 144};
-            static const Color3 PaleGreen{152, 251, 152};
-            static const Color3 DarkSeaGreen{143, 188, 143};
-            static const Color3 MediumSeaGreen{60, 179, 113};
-            static const Color3 SeaGreen{46, 139, 87};
-            static const Color3 DarkOliveGreen{85, 107, 47};
-            static const Color3 OliveDrab{107, 142, 35};
-            static const Color3 Lime{0, 255, 0};
-            static const Color3 Olive{128, 128, 0};
-        }
-        namespace Cyans {
-            static const Color3 LightCyan{224, 255, 255};
-            static const Color3 Cyan{0, 255, 255};
-            static const Color3 Aqua{0, 255, 255};
-            static const Color3 Aquamarine{127, 255, 212};
-            static const Color3 MediumAquamarine{102, 205, 170};
-            static const Color3 PaleTurquoise{175, 238, 238};
-            static const Color3 Turquoise{64, 224, 208};
-            static const Color3 MediumTurquoise{72, 209, 204};
-            static const Color3 DarkTurquoise{0, 206, 209};
-            static const Color3 LightSeaGreen{32, 178, 170};
-            static const Color3 CadetBlue{95, 158, 160};
-            static const Color3 DarkCyan{0, 139, 139};
-            static const Color3 Teal{0, 128, 128};
-        }
-        namespace Blues {
-            static const Color3 PowderBlue{176, 224, 230};
-            static const Color3 LightBlue{173, 216, 230};
-            static const Color3 LightSkyBlue{135, 206, 250};
-            static const Color3 SkyBlue{135, 206, 235};
-            static const Color3 DeepSkyBlue{0, 191, 255};
-            static const Color3 LightSteelBlue{176, 196, 222};
-            static const Color3 DodgerBlue{30, 144, 255};
-            static const Color3 CornflowerBlue{100, 149, 237};
-            static const Color3 SteelBlue{70, 130, 180};
-            static const Color3 RoyalBlue{65, 105, 225};
-            static const Color3 MediumBlue{0, 0, 205};
-            static const Color3 DarkBlue{0, 0, 139};
-            static const Color3 Navy{0, 0, 128};
-            static const Color3 MidnightBlue{25, 25, 112};
-            static const Color3 MediumSlateBlue{123, 104, 238};
-            static const Color3 SlateBlue{106, 90, 205};
-            static const Color3 DarkSlateBlue{72, 61, 139};
-        }
-
-
-        namespace Purples {
-            static const Color3 Lavender{230, 230, 250};
-            static const Color3 Thistle{216, 191, 216};
-            static const Color3 Plum{221, 160, 221};
-            static const Color3 Violet{238, 160, 221};
-            static const Color3 Orchid{218, 112, 214};
-            static const Color3 Fuchsia{255, 0, 255};
-            static const Color3 Magenta{255, 0, 255};
-            static const Color3 MediumOrchid{186, 85, 211};
-            static const Color3 MediumPurple{147, 112, 219};
-            static const Color3 BlueViolet{138, 43, 226};
-            static const Color3 DarkViolet{148, 0, 211};
-            static const Color3 DarkOrchid{153, 50, 204};
-            static const Color3 DarkMagenta{139, 0, 128};
-            static const Color3 Purple{128, 0, 128};
-            static const Color3 Indigo{75, 0, 130};
-        }
-        namespace Pinks {
-            static const Color3 Pink{255, 129, 203};
-            static const Color3 LightPink{255, 182, 193};
-            static const Color3 HotPink{255, 105, 180};
-            static const Color3 DeepPink{255, 20, 147};
-            static const Color3 PaleVioletRed{219, 112, 147};
-            static const Color3 MediumVioletRed{199, 21, 133};
-        }
-        namespace Whites {
-            static const Color3 Snow{255, 250, 250};
-            static const Color3 Honeydew{240, 255, 240};
-            static const Color3 MintCream{245, 255, 250};
-            static const Color3 Azure{240, 255, 255};
-            static const Color3 AliceBlue{240, 248, 255};
-            static const Color3 GhostWhite{248, 248, 255};
-            static const Color3 WhiteSmoke{245, 245, 245};
-            static const Color3 SeaShell{255, 245, 238};
-            static const Color3 Beige{245, 245, 220};
-            static const Color3 OldLace{253, 245, 230};
-            static const Color3 FloralWhite{255, 250, 240};
-            static const Color3 Ivory{255, 255, 240};
-            static const Color3 AntiqueWhite{250, 240, 215};
-            static const Color3 Linen{250, 240, 230};
-            static const Color3 LavenderBlush{255, 240, 245};
-            static const Color3 MistyRose{255, 228, 255};
-        }
-        namespace Grays {
-            static const Color3 Gainsboro{220, 220, 220};
-            static const Color3 LightGray{211, 211, 211};
-            static const Color3 Silver{192, 192, 192};
-            static const Color3 DimGray{105, 105, 105};
-            static const Color3 LightSlateGray{119, 136, 153};
-            static const Color3 SlateGray{112, 128, 144};
-            static const Color3 DarkSlateGray{47, 79, 79};
-        }
-        namespace Browns {
-            static const Color3 CornSilk{255, 248, 220};
-            static const Color3 BlanchedAlmond{255, 235, 205};
-            static const Color3 Bisque{255, 228, 196};
-            static const Color3 NavajoWhite{255, 222, 173};
-            static const Color3 Wheat{254, 222, 179};
-            static const Color3 BurlyWood{222, 184, 135};
-            static const Color3 Tan{210, 180, 140};
-            static const Color3 RosyBrown{188, 143, 143};
-            static const Color3 SandyBrown{244, 164, 96};
-            static const Color3 GoldenRod{218, 165, 32};
-            static const Color3 Peru{205, 133, 63};
-            static const Color3 Chocolate{210, 105, 30};
-            static const Color3 SaddleBrown{139, 69, 19};
-            static const Color3 Sienna{160, 82, 45};
-            static const Color3 Brown{164, 42, 42};
-            static const Color3 Maroon{128, 0, 0};
-        }
-    }
-}

include/JGL/FontCache.h

@@ -1,53 +0,0 @@
-#pragma once
-
-#include <vector>
-#include <glad/glad.h>
-
-namespace JGL {
-    class CachedGlyph;
-    class CachedFont;
-    class FontCache;
-}
-
-class JGL::CachedGlyph {
-private:
-    GLuint texture = 0;
-    char character;
-public:
-    int x2offset = 0, y2offset = 0, w = 0, h = 0;
-    float advanceX = 0, advanceY = 0;
-
-    //CachedGlyph(GLuint texture_id, char c);
-    CachedGlyph(GLuint texture_id, char c, float x2o, float y2o, float w, float h, float advX, float advY);
-    char getCharacter();
-    const GLuint* getTexture();
-};
-
-class JGL::CachedFont {
-private:
-    std::vector<CachedGlyph*> glyphs{};
-    unsigned int font_size = 0;
-    unsigned int font_index = 0;
-public:
-    void appendGlyph(CachedGlyph* glyph);
-    void eraseGlyph(CachedGlyph* glyph);
-    void eraseGlyph(char c);
-    void eraseGlyph(GLuint texture_id);
-    unsigned int getFontSize();
-    unsigned int getFontIndex();
-    CachedGlyph* getGlyph(char c);
-    std::vector<CachedGlyph*>* getGlyphs();
-    CachedFont(unsigned int font_size, unsigned int font_index);
-};
-
-class JGL::FontCache {
-private:
-    std::vector<CachedFont*> cachedFonts = {};
-public:
-    std::vector<CachedFont*>* getFonts();
-    CachedFont* getFont(unsigned int font_size, unsigned int font_index);
-    void appendFont(CachedFont* font);
-    void newFont(unsigned int font_size, unsigned int font_index);
-    void eraseFont(CachedFont* font);
-    void purgeCache();
-};

include/JGL/Gradient.h

@@ -1,12 +0,0 @@
-#pragma once
-
-#include <J3ML/J3ML.h>
-
-namespace JGL {
-    enum class Gradient : u8 {
-        Vertical = 0,
-        Horizontal = 1,
-        DiagonalTopLeft = 2,
-        DiagonalBottomLeft = 3
-    };
-}

include/JGL/JGL.h

@@ -1,167 +1,668 @@
-//
-// Created by dawsh on 1/17/24.
-//
+/// Josh's Graphics Library
+/// A C++20 Library for rendering 2D and 3D primitives in an OpenGL context.
+/// Developed and Maintained by Josh O'Leary @ Redacted Software.
+/// Special Thanks to William Tomasine II and Maxine Hayes.
+/// (c) 2024 Redacted Software
+/// This work is dedicated to the public domain.
+
+/// @file JGL.h
+/// @desc All JGL usable functions are defined here. This is the public API.
+/// @edit 2024-10-24
+
+
 #pragma once
 
 #include <string>
-#include <iostream>
-#include <JGL/Color4.h>
-#include <JGL/Gradient.h>
-#include <JGL/FontCache.h>
-#include <J3ML/LinearAlgebra.h>
-#include <J3ML/LinearAlgebra/Vector2.h>
-#include <J3ML/LinearAlgebra/Vector3.h>
-#include <J3ML/Geometry/Sphere.h>
-#include <J3ML/Geometry/Capsule.h>
-#include <J3ML/Geometry/TriangleMesh.h>
+#include <Color4.hpp>
+#include <JGL/types/Texture.h>
+#include <JGL/types/Enums.h>
+#include <JGL/types/FontCache.h>
+#include <JGL/types/Font.h>
+#include <JGL/types/RenderTarget.h>
+#include <JGL/types/Light.h>
+#include <J3ML/LinearAlgebra.hpp>
+#include <J3ML/LinearAlgebra/Vector2.hpp>
+#include <J3ML/LinearAlgebra/Vector3.hpp>
+#include <J3ML/Geometry/Sphere.hpp>
+#include <J3ML/Geometry/Capsule.hpp>
+#include <J3ML/Geometry/Triangle2D.hpp>
+#include <J3ML/J3ML.hpp>
+#include <JGL/types/Font.h>
 
-// OpenGL Wrapper for rendering 2D graphics primitives in both a 2D and 3D context
+/// OpenGL Wrapper for rendering 2D & 3D graphics in both a 2D and 3D context.
 namespace JGL {
+    using namespace J3ML::LinearAlgebra;
+    using namespace J3ML::Geometry;
 
-    using J3ML::LinearAlgebra::Vector2;
-    using J3ML::LinearAlgebra::Vector3;
-    using J3ML::LinearAlgebra::Matrix3x3;
-    using J3ML::LinearAlgebra::Matrix4x4;
-    using J3ML::LinearAlgebra::AxisAngle;
-    using J3ML::LinearAlgebra::Quaternion;
 
-    using J3ML::Geometry::Sphere;
-    using J3ML::Geometry::OBB;
-    using J3ML::Geometry::Capsule;
-    using J3ML::Geometry::TriangleMesh;
-    using J3ML::Geometry::Plane;
+    [[nodiscard]] bool Init(const Vector2& window_size, float fovY, float far_plane);
 
-    struct HSV {
-        float hue;
-        float saturation;
-        float value;
-    };
+    /// @param window_size
+    void Update(const Vector2& window_size);
 
-    struct Triangle2D
-    {
-        Vector2 A;
-        Vector2 B;
-        Vector2 C;
-    };
+    inline void PurgeFontCache() { JGL::fontCache.purgeCache(); }
 
-    struct Triangle3D
-    {
-        Vector3 A;
-        Vector3 B;
-        Vector3 C;
-    };
-
-    bool Update(const Vector2& window_size);
-    bool InitTextEngine();
-    int LoadFont(const std::string& font_path);
-
-    void UnloadFont(int font_index);
-    // TODO: implement correct coloring
+    std::array<GLfloat, 16> OpenGLPerspectiveProjectionRH(float fovY, float aspect, float z_near, float z_far);
 
+    /// Returns true if the graphics driver meets the requirements (GL Version & Extensions).
+    bool MeetsRequirements();
     /// Drawing functions for primitive 2D Shapes.
-    /// Each function is overloaded with Color3 and Color4 for optional transparency.
-    namespace J2D {
+}
 
-        /// Open a 2-D rendering context with the underlying graphics system (In this case & by default OpenGL).
-        /// @note This call may not strictly be necessary on some setups, but is provided to keep the API constant.
-        /// It is recommended to always open a JGL 2D context to render your content, then close when completed.
-        /// This keeps our code from, say, clobbering the OpenGL rendering context driving 3D content in between our calls.
-        void Begin();
-        /// Closes a 2-D rendering context with the underlying graphics system (In this case & by default OpenGL).
-        /// @see Begin().
-        void End();
+namespace JGL::J2D {
+    /// Open a 2-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
+    /// @note This call may not strictly be necessary on some setups, but is provided to keep the API constant.
+    /// It is recommended to always open a JGL 2D context to render your content, then close when completed.
+    /// This keeps our code from, say, clobbering the OpenGL rendering context driving 3D content in between our calls.
+    /// @param render_target
+    /// @param clear_buffers
+    void Begin(RenderTarget* render_target = nullptr, bool clear_buffers = false);
 
-        /// Plots a single pixel on the screen.
-        /// @param color  A 3-or-4 channel color value. @see classes Color3, Color4
-        /// @param coordinates The pixel-point on-screen at which to plot the pixel.
-        void DrawPixel(const Color3& color, const Vector2& coordinates);
-        void DrawPixel(const Color3& color, float x, float y);
-        void DrawPixel(const Color4& color, const Vector2& coordinates);
-        void DrawPixel(const Color4& color, float x, float y);
+    /// Closes a 2-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
+    /// @see Begin().
+    void End();
 
-        /// Plots a line (segment) on the screen.
-        /// @param color A 3-or-4 channel color value. @see classes Color3, Color4.
-        /// @param A The starting point of the line segment.
-        /// @param B The end point of the line segment.
-        /// @param thickness The width at which to render the line.
-        void DrawLine(const Color3& color, const Vector2& A, const Vector2& B, float thickness = 1);
-        void DrawLine(const Color3 &color, float x, float y, float w, float h, float thickness = 1);
-        void DrawLine(const Color4& color, const Vector2& A, const Vector2& B, float thickness = 1);
-        void DrawLine(const Color4& color, float x1, float y1, float x2, float y2, float thickness = 1);
+    /// Provide a list of lights to be used in 2D space. Typically directly after J2D::Begin();
+    /// 8 lights maximum for now. Some kind of light sorting will eventually be needed per j2d element.
+    void LightArray(LightBase*, size_t light_count);
 
-        ///Draws a line with a gradient that transitions across it.
-        void DrawGradientLine(const Color4& color1, const Color4& color2, const Vector2& A, const Vector2& B, float thickness = 1);
-        void DrawGradientLine(const Color3& color1, const Color3& color2, const Vector2& A, const Vector2& B, float thickness = 1);
-        void DrawGradientLine(const Color4& color1, const Color4& color2, float x, float y, float w, float h, float thickness = 1);
-        void DrawGradientLine(const Color3& color1, const Color3& color2, float x, float y, float w, float h, float thickness = 1);
+    /// Plots a single pixel on the screen.
+    /// @param color  A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param coordinates The pixel-point on-screen at which to plot the pixel.
+    /// @param radius The size of the point to plot. By default, a single pixel.
+    void DrawPoint(const Color4& color, const Vector2& coordinates, float radius = 1.f);
+    void DrawPoint(const Color4& color, float x, float y, float radius = 1.f);
 
-        /// Draws an outline of a rectangle on the screen.
-        void OutlineRect(const Color4& color, const Vector2& pos, const Vector2& size, float thickness = 1);
-        void OutlineRect(const Color3& color, const Vector2& pos, const Vector2& size, float thickness = 1);
+    /// Plots a series of pixel-points on the screen, in a batch.
+    /// @note This is more performant for multiple points than plotting them individually.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param points A set of x,y points to render.
+    /// @param radius The size of the point to plot. By default, a single pixel.
+    void DrawPoints(const Color4& color, const Vector2* points, int point_count, float radius = 1.f);
 
-        /// Draws a filled rectangle on the screen.
-        void FillRect(const Color4& color, const Vector2& pos, const Vector2& size);
-        void FillRect(const Color3& color, const Vector2& pos, const Vector2& size);
+    /// Plots a line (segment) on the screen.
+    /// @param color A 3-or-4 channel color value. @see classes Color3, Color4.
+    /// @param A The starting point of the line segment.
+    /// @param B The end point of the line segment.
+    /// @param thickness The width at which to render the line.
+    void DrawLine(const Color4& color, const Vector2& A, const Vector2& B, float thickness = 1);
+    void DrawLine(const Color4& color, float x1, float y1, float x2, float y2, float thickness = 1);
 
-        /// Draws a filled rectangle where the color transitions across it.
-        void FillGradientRect(const Color4& color1, const Color4& color2, const Gradient& gradient, const Vector2& pos, const Vector2& size);
-        void FillGradientRect(const Color3& color1, const Color3& color2, const Gradient& gradient, const Vector2& pos, const Vector2& size);
+    /// Plots a line segment using a series of points separated by a given distance.
+    /// @param color A 3-or-4 channel color value. @see classes Color3, Color4.
+    /// @param A The starting point of the line segment.
+    /// @param B The end point of the line segment.
+    /// @param spacing The distance between each point (px)
+    /// @param thickness The width at which to render the line.
+    /// @note With diagonal lines, the distance between points can differ by one px.
+    void DrawDottedLine(const Color4& color, const Vector2& A, const Vector2& B, float spacing = 1.f, float thickness = 1.f);
+    void DrawDottedLine(const Color4& color, float x1, float y1, float x2, float y2, float spacing = 1.f, float thickness = 1.f);
 
-        /// Draws a filled rectangle with rounded corners on the screen.
-        void FillRoundedRect(const Color4 &color, const Vector2 &pos, const Vector2 &size, float radius = 5, unsigned int subdivisions = 8);
-        void FillRoundedRect(const Color3& color, const Vector2& pos, const Vector2& size, float radius = 5, unsigned int subdivisions = 8);
+    /// Plots a line segment using a series of points separated by a given distance.
+    /// @param color A 3-or-4 channel color value. @see classes Color3, Color4.
+    /// @param A The starting point of the line segment.
+    /// @param B The end point of the line segment.
+    /// @param spacing The distance between each point (px)
+    /// @param dash_length The length of each dash making up the line.
+    /// @param thickness The width at which to render the line.
+    /// @note With diagonal lines, the distance between dashes can differ by one px.
+    void DrawDashedLine(const Color4& color, const Vector2& A, const Vector2& B, float spacing = 4.f, float dash_length = 6.f, float thickness = 1.f);
+    void DrawDashedLine(const Color4& color, float x1, float y1, float x2, float y2, float spacing = 4.f, float dash_length = 6.f, float thickness = 1.f);
 
-        /// Draws an outline of a circle on the screen.
-        void OutlineCircle(const Color4& color, const Vector2& center, float radius, unsigned int subdivisions = 16, float thickness = 1);
-        void OutlineCircle(const Color3& color, const Vector2& center, float radius, unsigned int subdivisions = 16, float thickness = 1);
+    /// Draws a line with a color gradient that transitions across it.
+    /// @param color_a A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param color_b A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param A The starting point of the line segment.
+    /// @param B The end point of the line segment.
+    /// @param thickness The width at which to render the line.
+    void DrawGradientLine(const Color4& color_a, const Color4& color_b, const Vector2& A, const Vector2& B, float thickness = 1);
+    void DrawGradientLine(const Color4& color_a, const Color4& color_b, float x1, float y1, float x2, float y2, float thickness = 1);
 
-        /// Draws a filled circle on the screen.
-        void FillCircle(const Color4& color, const Vector2& center, float radius, unsigned int subdivisions = 8);
-        void FillCircle(const Color3& color, const Vector2& center, float radius, unsigned int subdivisions = 8);
+    /// Draws an outline of a rectangle on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    /// @param thickness The width at which to render the lines.
+    void OutlineRect(const Color4& color, const Vector2& pos, const Vector2& size, float thickness = 1);
 
-        /// Draws an outline of a triangle on the screen.
-        void OutlineTriangle(const Color4& color, const Triangle2D& tri, float thickness = 1);
-        void OutlineTriangle(const Color3& color, const Triangle2D& tri, float thickness = 1);
-        // TODO: Implement an overload that simply takes 3 Vector3's
+    /// Draws an outline of a rectangle with rounded corners onto the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    /// @param radius The corner-rounding radius (in radians).
+    /// @param thickness The width at which to render the lines.
+    void OutlineRoundedRect(const Color4& color, const Vector2& pos, const Vector2& size, float radius = 5, float thickness = 1);
 
-        /// Draws a filled triangle on the screen.
-        void FillTriangle(const Color4& color, const Triangle2D &tri);
-        void FillTriangle(const Color3& color, const Triangle2D& tri);
-        // TODO: Implement an overload that simply takes 3 Vector3's
+    /// Draws an outline of a rectangle with chamfered corners onto the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    /// @param radius The corner-rounding radius (in radians).
+    /// @param thickness The width at which to render the lines.
+    void OutlineChamferRect(const Color4& color, const Vector2& pos, const Vector2& size, float radius = 5, float thickness = 1);
 
-        /// Draws a text string on the screen with a given point-size and font.
-        void DrawString(const Color3& color, std::string text, float x, float y, float scale, u32 size, unsigned int font_index);
+    /// Draws a filled rectangle on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    /// @see FillRoundedRect, FillGradientRect, FillChamferRect.
+    void FillRect(const Color4& color, const Vector2& pos, const Vector2& size);
 
-        // TODO: Implement the following:
-        void FillTexturedTriangle();
-        void FillTexturedPolygon();
-        void DrawSprite();
-        void DrawPartialSprite();
-        void DrawCubicBezierCurve();
-        void OutlinePolygon    (const Color4& color, std::vector<Vector2> points);
-        void FillPolygon       (const Color4& color, std::vector<Vector2> points, float thickness = 1);
-        void OutlineRoundedRect(const Color4& color, const Vector2& pos, const Vector2& size, float radius = 5, float thickness = 1);
-    }
+    /// Draws a filled rectangle where the color transitions across it.
+    /// @param color1 A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param color2 A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param gradient See enum Direction
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    void FillGradientRect(const Color4& color1, const Color4& color2, const Direction& gradient, const Vector2& pos, const Vector2& size);
 
-    namespace J3D {
-        void Begin();
-        void End();
-        void SetMatrix(const std::vector<GLfloat>& matrix, const Vector2& window_size);
-        void DrawLine(const Color4& color, const Vector3& A, const Vector3& B, float thickness = 1);
-        void DrawLine(const Color3& color, const Vector3& A, const Vector3& B, float thickness = 1);
-        void FillSphere(const Color3& color, const Sphere& sphere);
-        void WireframeSphere(const Color3& color, const Sphere& sphere, float thickness = 1);
-        void FillOBB(const Color3& color, const OBB& obb);
-        void WireframeOBB(const Color3& color, const OBB& obb, float thickness = 1);
-        void FillCapsule(const Color3& color, const Capsule& capsule);
-        void WireframeCapsule(const Color3& color, const Capsule& cap, float thickness = 1);
-        void FillTriangleMesh(const Color3& color, const TriangleMesh& mesh);
-        void WireframeTriangleMesh(const Color3& color, const TriangleMesh& mesh, float thickness = 1);
-        void DrawString(const Color3& color, const std::string& text, const Vector3& pos, const Vector3& angle, float scale, u32 size, unsigned int font_index);
+    /// Draws a filled rectangle with rounded corners on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    /// @param radius The corner-rounding radius (in radians).
+    /// @param subdivisions The amount of sub-divisions (and calculations) to be performed per-arc rounding corner.
+    void FillRoundedRect(const Color4& color, const Vector2& pos, const Vector2& size, float radius = 5, unsigned int subdivisions = 8);
 
-        void DrawMatrixGizmo     (const Matrix3x3&, const Vector3&);
-        void DrawMatrixGizmo     (const Matrix4x4&);
-        void DrawAxisAngleGizmo  (const AxisAngle&,  const Vector3&);
-        void DrawQuaternionGizmo (const Quaternion&, const Vector3&);
-    }
+    /// Draws a filled rectangle with chamfered (beveled) corners on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The top-left corner of the rectangle.
+    /// @param size The width and height of the rectangle.
+    /// @param radius The corner-rounding radius (in radians).
+    void FillChamferRect(const Color4& color, const Vector2& pos, const Vector2& size, float radius = 5);
+
+    /// Draws a render-target (runtime-modifiable texture) to the screen.
+    /// @param render_target A RenderTarget instance to be displayed.
+    /// @param position The position at which to render this object from it's center-point, defined by the origin parameter.
+    /// @param rad_rotation The amount of radians to rotate this render-target about it's center-point.
+    /// @param origin The center-point in the image to use for rendering, rotation, and scaling. Top-left is {0,0} and bottom right is {1, 1}.
+    /// @param scale The amount (in both x, and y axis) to scale the image, with {1,1} being default scaling.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param inversion @see Direction
+    void DrawRenderTarget(const RenderTarget& render_target, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0 , 0),
+                          const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawRenderTarget(const RenderTarget* render_target, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0 , 0),
+                          const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+
+    void DrawPartialRenderTarget(const RenderTarget&, const Vector2& position, const Vector2& sub_texture_position, const Vector2& sub_texture_size, float rad_rotation = 0,
+                           const Vector2& origin = Vector2(0,0), const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawPartialRenderTarget(const RenderTarget*, const Vector2& position, const Vector2& sub_texture_position, const Vector2& sub_texture_size, float rad_rotation = 0,
+                                 const Vector2& origin = Vector2(0,0), const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+
+    /// Draws a sprite (technically, actually a render target) to the screen.
+    /// @note This similar overload exists because we expect someone will be an idiot and turn all of their sprites into RenderTargets. ~william
+    /// @param render_target A RenderTarget instance to be displayed.
+    /// @param position The position at which to render this object from it's center-point, defined by the origin parameter.
+    /// @param rad_rotation The amount of radians to rotate this render-target about it's center-point.
+    /// @param origin The center-point in the image to use for rendering, rotation, and scaling. Top-left is {0,0} and bottom right is {1, 1}.
+    /// @param scale The amount (in both x, and y axis) to scale the image, with {1,1} being default scaling.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param inversion @see Direction
+    /// @see DrawSprite
+    void DrawSprite(const RenderTarget& render_target, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0 , 0),
+                    const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const RenderTarget* render_target, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0 , 0),
+                    const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+
+    /// Draws a sprite to the screen by passing a G̶L̶u̶i̶n̶t̶ JGL Texture that represents a handle to a loaded texture.
+    /// @param texture A texture instance to be displayed.
+    /// @param position The point at which to draw the sprite (from the top-left down).
+    /// @param origin The center point around which the image should have all transformations applied to it.
+    /// @param scale The scale transformation for the image. X and Y axis are independently-scalable.
+    /// @param rad_rotation A float representing the rotation of the sprite where 0 is no rotation and 1 is the maximum rotation (would look the same as 0).
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param inversion @see Direction
+    /// @see class Texture
+    void DrawSprite(const Texture& texture, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0,0),
+                    const Vector2& scale = Vector2(1,1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const Texture* texture, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0,0),
+                    const Vector2& scale = Vector2(1,1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const Texture& texture, float positionX, float positionY, float rad_rotation = 0, float originX = 0, float originY = 0,
+                    float scaleX = 1, float scaleY = 1, const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const Texture* texture, float positionX, float positionY, float rad_rotation = 0,
+                    float originX = 0, float originY = 0,float scaleX = 1, float scaleY = 1,
+                    const Color4& color = Colors::White, Direction inversion = Direction::None);
+
+
+    /// Draws a sprite to the screen by passing a G̶L̶u̶i̶n̶t̶ JGL Texture that represents a handle to a loaded texture.
+    /// @param texture A texture instance to be displayed.
+    /// @param alpha_mask A texture which determines how much of the sprite you can see. Grayscale image exported as "8bpc RGBA".
+    /// @param position The point at which to draw the sprite (from the top-left down).
+    /// @param origin The center point around which the image should have all transformations applied to it.
+    /// @param scale The scale transformation for the image. X and Y axis are independently-scalable.
+    /// @param rad_rotation A float representing the rotation of the sprite where 0 is no rotation and 1 is the maximum rotation (would look the same as 0).
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param inversion @see Direction
+    /// @see class Texture
+    void DrawSprite(const Texture& texture, const Texture& alpha_mask, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0,0),
+                    const Vector2& scale = Vector2(1,1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const Texture* texture, const Texture* alpha_mask, const Vector2& position, float rad_rotation = 0, const Vector2& origin = Vector2(0,0),
+                    const Vector2& scale = Vector2(1,1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const Texture& texture, const Texture& alpha_mask, float positionX, float positionY, float rad_rotation = 0, float originX = 0, float originY = 0,
+                    float scaleX = 1, float scaleY = 1, const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawSprite(const Texture* texture, const Texture* alpha_mask, float positionX, float positionY, float rad_rotation = 0, float originX = 0, float originY = 0,
+                    float scaleX = 1, float scaleY = 1, const Color4& color = Colors::White, Direction inversion = Direction::None);
+
+    /// Draws a piece of a sprite to the screen, similar to DrawSprite.
+    /// @param texture A texture instance to be displayed.
+    /// @param position The point at which to draw the sprite (from the top-left down).
+    /// @param sub_texture_position The top left corner of the sub-texture to be drawn.
+    /// @param sub_texture_size The size of the sub-texture in px.
+    /// @param origin The center point around which the image should have all transformations applied to it.
+    /// @param scale The scale transformation for the image. X and Y axis are independently-scalable.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param inversion @see Direction
+    void DrawPartialSprite(const Texture& texture, const Vector2& position, const Vector2& sub_texture_position, const Vector2& sub_texture_size, float rad_rotation = 0,
+                           const Vector2& origin = Vector2(0,0), const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawPartialSprite(const Texture* texture, const Vector2& position, const Vector2& sub_texture_position, const Vector2& sub_texture_size, float rad_rotation = 0,
+                           const Vector2& origin = Vector2(0,0), const Vector2& scale = Vector2(1, 1), const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawPartialSprite(const Texture& texture, float positionX, float positionY, float sub_texture_positionX, float sub_texture_positionY, unsigned int sub_texture_sizeX, unsigned int sub_texture_sizeY,
+                           float rad_rotation = 0, float originX = 0, float originY = 0, float scaleX = 1, float scaleY = 1, const Color4& color = Colors::White, Direction inversion = Direction::None);
+    void DrawPartialSprite(const Texture* texture, float positionX, float positionY, float sub_texture_positionX, float sub_texture_positionY, unsigned int sub_texture_sizeX, unsigned int sub_texture_sizeY,
+                           float rad_rotation = 0, float originX = 0, float originY = 0, float scaleX = 1, float scaleY = 1, const Color4& color = Colors::White, Direction inversion = Direction::None);
+
+    /// To save v-ram, Use if a sprite would be identical if mirrored horizontally, vertically, or both. For example, a circle.
+    /// Assumes the input texture is the top left quadrant. You can use "SoftwareTexture" to invert it correctly so that's the case.
+    /// @param texture A texture instance to be displayed.
+    /// @param position The point at which to draw the sprite (from the top-left down).
+    /// @param mirror_axis The axes to mirror across, Vertical and Horizontal or both only.
+    /// @param rad_rotation The rotation of the final result.
+    /// @param origin The point at which transformations are done about.
+    /// @param scale The scale transformation for the image. X and Y axis are independently-scalable.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    void DrawMirrorSprite(const Texture& texture, const Vector2& position, Direction mirror_axis = Direction::Horizontal | Direction::Vertical, float rad_rotation = 0, const Vector2& origin = Vector2(0,0), const Vector2& scale = Vector2(1,1), const Color4& color = Colors::White);
+    void DrawMirrorSprite(const Texture* texture, const Vector2& position, Direction mirror_axis = Direction::Horizontal | Direction::Vertical, float rad_rotation = 0, const Vector2& origin = Vector2(0,0), const Vector2& scale = Vector2(1,1), const Color4& color = Colors::White);
+
+    /// Draws an outline of a circle on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param center The point in cartesian space at which to draw the circle. This will by-definition be the centroid of this circle.
+    /// @param radius The radius of the circle to be drawn. AKA Half the diameter.
+    /// @param subdivisions The accuracy of the approximation of the circle, measured in iteration steps taken.
+    /// @param thickness The line-width of the circle to be rendered at.
+    void OutlineCircle(const Color4& color, const Vector2& center, float radius, unsigned int subdivisions = 16, float thickness = 1);
+
+    /// Draws a filled circle on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param center The point in cartesian space at which to draw the circle. This will by-definition be the centroid of this circle.
+    /// @param radius The radius of the circle to be drawn. AKA Half the diameter.
+    /// @param subdivisions The accuracy of the approximation of the circle, measured in iteration steps taken.
+    void FillCircle(const Color4& color, const Vector2& center, float radius, unsigned int subdivisions = 8);
+
+    /// Draws an outline of a triangle on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param tri The triangle defined by its vertices (A, B, and C).
+    /// @param thickness The line-width of the triangle to be rendered at.
+    void OutlineTriangle(const Color4& color, const Triangle2D& tri, float thickness = 1);
+    void OutlineTriangle(const Color4& color, const Vector2& triA, const Vector2& triB, const Vector2& triC, float thickness = 1);
+
+    /// Draws a filled triangle on the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param tri The triangle defined by its vertices (A, B, and C).
+    void FillTriangle(const Color4& color, const Triangle2D& tri);
+    void FIllTriangle(const Color4& color, const Vector2& triA, const Vector2& triB, const Vector2& triC);
+
+    /// Fills a triangle defined by the provided vertices with a gradient that transitions smoothly between the three specified colors at each corner.
+    /// @param a_color The color at vertex A of the triangle.
+    /// @param b_color The color at vertex B of the triangle.
+    /// @param c_color The color at vertex C of the triangle.
+    /// @param tri The triangle defined by its vertices (A, B, and C).
+    void FillGradientTriangle(const Color4& a_color, const Color4& b_color, const Color4& c_color, const Triangle2D& tri);
+    void FillGradientTriangle(const Color4& a_color, const Color4& b_color, const Color4& c_color, const Vector2& tri_a, const Vector2& tri_b, const Vector2& tri_c);
+
+    /// Draws a smooth, curved line segment between two control points, with the curve controlled by the two inner points.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param controlA The first control point, which can be considered the start of the line.
+    /// @param pointA The first inner point, which controls the contour of the curve.
+    /// @param pointB The second inner point, which controls the contour of the curve.
+    /// @param controlB The second control point, which can be considered the end of the line.
+    /// @param subdivisions The accuracy of the approximation of the curve, measured in iteration steps taken.
+    /// @param thickness The line-width to draw the curve with.
+    /// @see J3ML::Algorithm::Bezier
+    void DrawCubicBezierCurve(const Color4& color, const Vector2& controlA, const Vector2& pointA, const Vector2& pointB, const Vector2& controlB,
+                              int subdivisions = 10, float thickness = 1);
+
+    /// Draws a series of points where the last point always connects to the first point.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param points The array of vector2's to draw as a polygon.
+    /// @param point_count The number of points
+    /// @param thickness The line-width of the polygon
+    void OutlinePolygon(const Color4& color, const Vector2* points, int point_count, float thickness = 1);
+
+    /// Draws a text string on the screen with a given point-size and font.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param text The text to be rendered.
+    /// @param x The position on the screen at which to draw the text, from the top-left.
+    /// @param y The position on the screen at which to draw the text, from the top-left.
+    /// @param scale The value (in both axes) to scale the text by. Defaults to {1,1}.
+    /// @param size The point-size at which to render the font out. Re-using the same point-size allows efficient glyph caching.
+    /// @param font The font to use for rendering. @see Font.
+    void DrawString(const Color4& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font);
+
+
+    /// Draws an Arc (section of a circle) to the screen.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param center The point in cartesian space at which to draw the arc. This will by-definition be the centroid of this partial circle.
+    /// @param radius The radius of the partial circle to be drawn. AKA Half the diameter.
+    /// @param arc_begin The point (0 - 2pi) around a unit-circle of which to start the arc.
+    /// @param arc_end The point (0 - 2pi) around a unit-circle of which to start the arc.
+    /// @param subdivisions The accuracy of the approximation of the circle, measured in iteration steps taken.
+    /// @param thickness The line-width to draw the arc with.
+    void DrawArc(const Color4& color, const Vector2& center, float radius, float arc_begin, float arc_end,
+                 unsigned int subdivisions, float thickness);
+
+
+    /// TODO Implement the following. These ones are going to be extremely annoying.
+    void FillPolygon(const Color4& color, const std::vector<Vector2>& points);
+    void OutlineEllipse(const Color4& color, const Vector2& position, float radius_x, float radius_y, float thickness = 1, int subdivisions = 8);
+    void FillEllipse(const Color4& color, const Vector2& position, float radius_x, float radius_y, int subdivisions = 8);
+}
+
+/// Drawing functions for primitive 3D Shapes.
+namespace JGL::J3D {
+    /// A light for this 3D render that should never be culled out. up-to 8.
+    /// The more you put here, The less we will solve for if you're also using LightArray.
+    /// @note More than 8 lights will cause an error to be printed.
+    void RequiredLight(const LightBase* light);
+
+    /// When each 3D object is drawn, We'll do our best to determine which lights would effect it the most and use those ones.
+    void LightArray(const LightBase** lights, const size_t& light_count);
+
+    /// Helper function to conveniently change the Field-Of-View.
+    void ChangeFOV(float fov);
+
+    /// Helper function to change the far-plane, which is the cutoff distance for rendering.
+    void ChangeFarPlane(float far_plane);
+
+    /// Open a 3-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
+    /// @note This call may not strictly be necessary on some setups, but is provided to keep the API constant.
+    /// It is recommended to always open a JGL 3D context to render your content, then close when completed.
+    /// This keeps our code from, say, clobbering the OpenGL rendering context driving 2D content in between our calls.
+    void Begin();
+
+    /// Closes a 3-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
+    /// @see Begin().
+    void End();
+
+    void SetMatrix(const std::vector<GLfloat>& matrix, const Vector2& window_size);
+
+    /// Draws a line in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param A The start-point of the line segment.
+    /// @param B The end-point of the line segment.
+    /// @param thickness The line-width to draw the line segment with.
+    void DrawLine(const Color4& color, const Vector3& A, const Vector3& B, float thickness = 1.f);
+
+    /// Draws a smooth, curved line segment between two control points, with the curve controlled by the two inner points.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param controlA The first control point, which can be considered the start of the line.
+    /// @param pointA The first inner point, which controls the contour of the curve.
+    /// @param pointB The second inner point, which controls the contour of the curve.
+    /// @param controlB The second control point, which can be considered the end of the line.
+    /// @param subdivisions The accuracy of the approximation of the curve, measured in iteration steps taken.
+    /// @param thickness The line-width to draw the curve with.
+    /// @see J3ML::Algorithm::Bezier
+    void DrawCubicBezierCurve(const Color4& color, const Vector3& controlA, const Vector3& pointA, const Vector3& pointB, const Vector3& controlB,
+                                  int subdivisions = 10, float thickness = 1);
+
+    /// Draws the outline of an Icosahedron in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Icosahedron.
+    /// @param radius The size to draw the Icosahedron at.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    void WireframeIcosahedron(const Color4& color, const Vector3& position, float radius, float thickness = 1.f);
+
+    /// Draws a solid Icosahedron in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Icosahedron.
+    /// @param radius The size to draw the Icosahedron at.
+    void FillIcosahedron(const Color4& color, const Vector3& position, float radius);
+
+    /// Draws the outline of a Sphere in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param stacks The amount of longitudinal subdivisions to perform when computing the sphere.
+    void WireframeSphere(const Color4& color, const Vector3& position, float radius, float thickness = 1.f,  unsigned int sectors = 10, unsigned int stacks = 10);
+
+    /// Draws the outline of a Sphere in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param stacks The amount of longitudinal subdivisions to perform when computing the sphere.
+    void WireframeSphere(const Color4& color, const Sphere& sphere, float thickness = 1.f, unsigned int sectors = 10, unsigned int stacks = 10);
+
+    /// Draws outlines of multiple spheres in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param spheres The mathematically-defined sphere objects to be rendered.
+    /// @param sphere_count The number of spheres.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param stacks The amount of longitudinal subdivisions to perform when computing the sphere.
+    /// @note The "Position" of the spheres is expected to be in world space.
+    void BatchWireframeSphere(const Color4& color, const Sphere* spheres, const size_t& sphere_count, float thickness = 1.f, unsigned int sectors = 10, unsigned int stacks = 10);
+
+    /// Draws outlines of a sphere in 3D space. Calculates a cross section and revolves it around the center.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param revolutions The number of times to revolve the cross section about the center.
+    /// @param draw_stacks Whether or not to draw the stacks of the sphere.
+    void WireframeRevoSphere(const Color4& color, const Vector3& position, float radius, float thickness = 1.f, unsigned int sectors = 10, unsigned int revolutions = 10, bool draw_stacks = false);
+
+    /// Draws the outline of a Sphere in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param revolutions The number of times to revolve the cross section about the center.
+    /// @param draw_stacks Whether or not to draw the stacks of the sphere.
+    void WireframeRevoSphere(const Color4& color, const Sphere& sphere, float thickness = 1.f, unsigned int sectors = 10, unsigned int revolutions = 10, bool draw_stacks = false);
+
+    /// Draws outlines of multiple spheres in 3D space. Calculates a cross section and revolves it around the center.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param spheres The mathematically-defined sphere objects to be rendered.
+    /// @param sphere_count The number of spheres.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param revolutions The number of times to revolve the cross section about the center.
+    /// @param draw_stacks Whether or not to draw the stacks of the sphere.
+    /// @note The "Position" of the spheres is expected to be in world space.
+    /// @note This method of drawing a sphere is *probably* the fastest out of all of them.
+    void BatchWireframeRevoSphere(const Color4& color, const Sphere* spheres, const size_t& sphere_count, float thickness = 1.f, unsigned int sectors = 10, unsigned int revolutions = 10, bool draw_stacks = false);
+
+    /// Draws the outline of an Icosphere in 3D space.
+    /// @note An Icosphere is an approximation of a sphere that is generated by recursively subdividing an Icosahedron.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    /// @param subdivisions The accuracy of the approximation of the Icosphere, measured in iteration steps taken.
+    void WireframeIcosphere(const Color4& color, const Vector3& position, float radius, float thickness = 1.f, unsigned int subdivisions = 10);
+
+    /// Draws the outline of an Icosphere in 3D space.
+    /// @note An Icosphere is an approximation of a sphere that is generated by recursively subdividing an Icosahedron.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param thickness The line-width to draw the Icosphere outline with.
+    /// @param subdivisions The accuracy of the approximation of the Icosphere, measured in iteration steps taken.
+    void WireframeIcosphere(const Color4& color, const Sphere& sphere, float thickness = 1.f, unsigned int subdivisions = 10);
+
+    /// Draws the outline of a Cubesphere in 3D space.
+    /// @note A Cubesphere is an approximation of a sphere that is generated by recursively subdividing a Cube.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param thickness The line-width to draw the Cubesphere outline with.
+    /// @param subdivisions The accuracy of the approximation of the Cubesphere, measured in iteration steps taken.
+    void WireframeCubesphere(const Color4& color, const Vector3& position, float radius, float thickness = 1.f, unsigned int subdivisions = 10);
+
+    /// Draws the outline of a Cubesphere in 3D space.
+    /// @note A Cubesphere is an approximation of a sphere that is generated by recursively subdividing a Cube.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param thickness The line-width to draw the Cubesphere outline with.
+    /// @param subdivisions The accuracy of the approximation of the Cubesphere, measured in iteration steps taken.
+    void WireframeCubesphere(const Color4& color, const Sphere& sphere, float thickness = 1.f, unsigned int subdivisions = 10);
+
+    /// Draws a solid Sphere in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param stacks The amount of longitudinal subdivisions to perform when computing the sphere.
+    void FillSphere(const Color4& color, const Vector3& position, float radius, unsigned int sectors = 10, unsigned int stacks = 10);
+
+    /// Draws a solid Sphere in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param stacks The amount of longitudinal subdivisions to perform when computing the sphere.
+    void FillSphere(const Color4& color, const Sphere& sphere, unsigned int sectors = 10, unsigned int stacks = 10);
+
+    /// Draws multiple solid Spheres in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param spheres The mathematically-defined sphere objects to be rendered.
+    /// @param sphere_count The number of spheres to be rendered.
+    /// @param sectors The amount of latitudinal subdivisions to perform when computing the sphere.
+    /// @param stacks The amount of longitudinal subdivisions to perform when computing the sphere.
+    void BatchFillSphere(const Color4& color, const Sphere* spheres, const size_t& sphere_count, unsigned int sectors = 10, unsigned int stacks = 10);
+
+    /// Draws a solid Icosphere in 3D space.
+    /// @note An Icosphere is an approximation of a sphere that is generated by recursively subdividing an Icosahedron.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param subdivisions The accuracy of the approximation of the Cubesphere, measured in iteration steps taken.
+    void FillIcosphere(const Color4& color, const Vector3& position, float radius, unsigned int subdivisions = 10);
+
+    /// Draws a solid Icosphere in 3D space.
+    /// @note An Icosphere is an approximation of a sphere that is generated by recursively subdividing an Icosahedron.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param subdivisions The accuracy of the approximation of the Cubesphere, measured in iteration steps taken.
+    void FillIcosphere(const Color4& color, const Sphere& sphere, unsigned int subdivisions = 10);
+
+    /// Draws a solid Cubesphere in 3D space.
+    /// @note A Cubesphere is an approximation of a sphere that is generated by recursively subdividing a Cube.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space at which to draw the Sphere.
+    /// @param radius The size to draw the Sphere at.
+    /// @param subdivisions The accuracy of the approximation of the Cubesphere, measured in iteration steps taken.
+    void FillCubesphere(const Color4& color, const Vector3& position, float radius, unsigned int subdivisions = 10);
+
+    /// Draws a solid Cubesphere in 3D space.
+    /// @note A Cubesphere is an approximation of a sphere that is generated by recursively subdividing a Cube.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param sphere The mathematically-defined sphere object to be rendered.
+    /// @param subdivisions The accuracy of the approximation of the Cubesphere, measured in iteration steps taken.
+    void FillCubesphere(const Color4& color, const Sphere& sphere, unsigned int subdivisions = 10);
+
+    /// Draws an outline of an axis-aligned bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The point in 3D space that is the center of the AABB.
+    /// @param radii The radii along x,y,z axes to size the bounding box.
+    /// @param thickness The line-width to draw the Icosphere outline with.
+    void WireframeAABB(const Color4& color, const Vector3& pos, const Vector3& radii, float thickness = 1.f);
+
+    /// Draws an outline of an axis-aligned bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param aabb The AABB object to render.
+    /// @param thickness The line-width to draw the Icosphere outline with.
+    void WireframeAABB(const Color4& color, const AABB& aabb, float thickness = 1.f);
+
+    /// Draws outlines of multiple axis-aligned bounding-boxes in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param boxes The boxes to be drawn.
+    /// @param box_count The number of boxes to be drawn.
+    /// @param thickness The line-width to draw the Icosahedron outline with.
+    void BatchWireframeAABB(const Color4& color, const AABB* boxes, const size_t& box_count, float thickness = 1.f);
+
+    /// Draws a solid axis-aligned bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param pos The point in 3D space that is the center of the AABB.
+    /// @param radii The radii along x,y,z axes to size the bounding box.
+    void FillAABB(const Color4& color, const Vector3& pos, const Vector3& radii);
+
+    /// Draws a solid axis-aligned bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param aabb The AABB object to visualize.
+    void FillAABB(const Color4& color, const AABB& aabb);
+
+    /// Draws solid axis-aligned bounding boxes in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param aabb The AABB objects to visualize.
+    /// @param box_count The number of AABBs to draw.
+    void BatchFillAABB(const Color4& color, const AABB* boxes, const size_t& box_count);
+
+    /// Draws an outline of an oriented bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The point in 3D space that is the center of the AABB.
+    /// @param radii The radii along x,y,z axes to size the bounding box.
+    /// @param orientation The rotation in 3D space of the OBB.
+    /// @param thickness The line-width to draw the OBB outline with.
+    void WireframeOBB(const Color4& color, const Vector3& position, const Vector3& radii, const Matrix3x3& orientation, float thickness = 1.f);
+
+    /// Draws an outline of an oriented bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param obb The OBB object to visualize.
+    /// @param thickness The line-width to draw the OBB outline with.
+    void WireframeOBB(const Color4& color, const OBB& obb, float thickness = 1.f);
+
+    void BatchWireframeOBB(const Color4& color, const OBB* boxes, const size_t& box_count, float thickness = 1.f);
+
+    /// Draws a solid oriented bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param position The center-position of the oriented bounding box.
+    /// @param radii The radii along x,y,z axes to size the bounding box.
+    /// @param orientation The rotation in 3D space of the OBB.
+    void FillOBB(const Color4& color, const Vector3& position, const Vector3& radii, const EulerAngleXYZ& orientation);
+
+    /// Draws a solid oriented bounding box in 3D space.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param obb The oriented-bounding-box object to visualize.
+    void FillOBB(const Color4& color, const OBB& obb);
+
+    void WireframeCylinder();
+    void FillCylinder();
+    void WireframePrism();
+    void FillPrism();
+    void WireframePipe();
+    void FillPipe();
+    void WireframeCone();
+    void FillCone();
+    void WireframeTorus();
+    void FillTorus();
+
+    void FillCapsule(const Color3& color, const Capsule& capsule);
+    void WireframeCapsule(const Color3& color, const Capsule& cap, float thickness = 1.f);
+    void FillTriangleMesh(const Color3& color, const TriangleMesh& mesh);
+    void WireframeTriangleMesh(const Color3& color, const TriangleMesh& mesh, float thickness = 1.f);
+
+    /// Draws a string of text in 3D space, with an arbitrary rotation.
+    /// @param color A 3-or-4 channel color value. @see class Color3, class Color4
+    /// @param text The content to display on the screen.
+    /// @param pos The position in 3D space to display the text.
+    /// @param scale The scaling factor to render the text with, 1 being default. TODO: Vector2 scaling?
+    /// @param size The pixel size to rasterize the font with.
+    /// @param font The font object to use when drawing.
+    /// @param angle The orientation in 3D space.
+    /// @param draw_back_face
+    void DrawString(const Color4& color, const std::string& text, const Vector3& pos, float scale, u32 size, const Font& font, const EulerAngleXYZ& angle = {0, 0, 0}, bool draw_back_face = false);
+
+    /// Draws a string of text in 3D space that is always facing the exact direction of the camera projection.
+    void DrawBillboardString();
+
+    /// Draws a texture sprite in 3D space that is always facing the exact direction of the camera projection.
+    void DrawBillboardSprite();
+
+    void DrawSprite();
+    void DrawMatrixGizmo     (const Matrix3x3&, const Vector3&);
+    void DrawMatrixGizmo     (const Matrix4x4&);
+    void DrawAxisAngleGizmo  (const AxisAngle&,  const Vector3&);
+    void DrawQuaternionGizmo (const Quaternion&, const Vector3&);
 }

include/JGL/ShapeCache.h

@@ -0,0 +1,9 @@
+#pragma once
+#include <JGL/types/VRamList.h>
+#include <array>
+
+namespace JGL::ShapeCache {
+    inline VRamList* cube_vertex_data = nullptr;
+    inline VRamList* cube_index_data = nullptr;
+    void Init();
+}

include/JGL/logger/logger.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <jlog/Logger.hpp>
+
+namespace JGL::Logger {
+    using namespace jlog;
+
+    extern GenericLogger Fatal;
+    extern GenericLogger Debug;
+    extern GenericLogger Error;
+
+}

include/JGL/types/Enums.h

@@ -0,0 +1,72 @@
+#pragma once
+
+namespace JGL {
+    enum class Direction : u8 {
+        None = 0,
+        Vertical = 1,
+        Horizontal = 2,
+        Diagonal_NWSE = 3, // North West -> South East.
+        Diagonal_SWNE = 4 // South West -> North East.
+    };
+
+    inline Direction operator|(Direction a, Direction b) {
+        return static_cast<Direction>(static_cast<int>(a) | static_cast<int>(b));
+    }
+
+    inline bool operator&(Direction a, Direction b) {
+        return (u8)a & (u8)b;
+    }
+
+    static std::string to_string(const JGL::Direction& direction) {
+        switch (direction) {
+            case JGL::Direction::None:
+                return "None";
+            case JGL::Direction::Vertical:
+                return "Vertical";
+            case JGL::Direction::Horizontal:
+                return "Horizontal";
+            case JGL::Direction::Diagonal_NWSE:
+                return "Diagonal_NWSE";
+            case JGL::Direction::Diagonal_SWNE:
+                return "Diagonal_SWNE";
+            default:
+                return "Unknown";
+        }
+    }
+
+    enum class MSAA_SAMPLE_RATE : u8 {
+        MSAA_NONE = 0,
+        MSAA_2X = 1,
+        MSAA_4X = 2,
+        MSAA_8X = 3
+    };
+
+    static std::string to_string(const JGL::MSAA_SAMPLE_RATE& sample_rate) {
+        switch (sample_rate) {
+            case MSAA_SAMPLE_RATE::MSAA_NONE:
+                return "No MSAA";
+            case MSAA_SAMPLE_RATE::MSAA_2X:
+                return "MSAA 2x";
+            case MSAA_SAMPLE_RATE::MSAA_4X:
+                return "MSAA 4x";
+            case MSAA_SAMPLE_RATE::MSAA_8X:
+                return "MSAA 8x";
+            default:
+                return "Unknown";
+        }
+    }
+    static int to_int(const JGL::MSAA_SAMPLE_RATE& sample_rate) {
+        switch (sample_rate) {
+            case MSAA_SAMPLE_RATE::MSAA_NONE:
+                return 0;
+            case MSAA_SAMPLE_RATE::MSAA_2X:
+                return 2;
+            case MSAA_SAMPLE_RATE::MSAA_4X:
+                return 4;
+            case MSAA_SAMPLE_RATE::MSAA_8X:
+                return 8;
+            default:
+                return 0;
+        }
+    }
+}

include/JGL/types/Font.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <vector>
+#include <filesystem>
+#include <J3ML/LinearAlgebra.hpp>
+#include <filesystem>
+#include <iostream>
+
+
+/// Defines external C references to FreeType Data Structures
+extern "C" typedef struct FT_FaceRec_* FT_Face;
+extern "C" typedef struct FT_LibraryRec_* FT_Library;
+
+namespace JGL
+{
+
+    //bool Init();
+    bool InitTextEngine();
+
+    /// A Font class implementation.
+    /// Wraps the font's FreeType asset handle and provides helper functions.
+    class Font {
+    public:
+        /// Default constructor does not initialize any members
+        Font() = default;
+        Font(const std::filesystem::path& path);
+        /// Destructor handles freeing of the underlying asset handle.
+        ~Font();
+        static Font LoadTTF(const std::filesystem::path& filepath);
+        static std::vector<Font> GetLoadedFonts();
+        /// Returns the bounding-box the given string would occupy at the given point-size, assuming normal (1) scaling.
+        /// @param text The string to measure.
+        /// @param ptSize The font size at which to measure.
+        /// @return The size-in-pixels that would contain the entire text.
+        Vector2 MeasureString(const std::string& text, unsigned int ptSize);
+    public:
+        int index = 0;
+        FT_Face face;
+    };
+}

include/JGL/types/FontCache.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include <glad/glad.h>
+#include <vector>
+#include <array>
+#include <unordered_map>
+
+
+/// TODO: FontCache mechanism works amazing, but makes no fucking sense
+/// Let's document and reorganize it to be a little nicer on the mental :)
+
+namespace JGL {
+    class CachedGlyph;
+    class CachedFont;
+    class FontCache;
+}
+
+/// Represents a single font-character "glyph", that has been cached in-memory for fast retrieval.
+class JGL::CachedGlyph {
+private:
+    char character;
+    std::array<GLfloat, 12> texcoords;
+public:
+    int x2offset = 0, y2offset = 0, w = 0, h = 0;
+    float advanceX = 0, advanceY = 0;
+
+    //CachedGlyph(GLuint texture_id, char c);
+    CachedGlyph(char c, std::array<GLfloat, 12> texcoords, float x2o, float y2o, float w, float h, float advX, float advY);
+    char getCharacter() const;
+    [[nodiscard]] std::array<GLfloat, 12> getTexCoords() const;
+};
+
+/// Represents a Font object as it exists in the font-cache.
+class JGL::CachedFont {
+private:
+    std::unordered_map<char, CachedGlyph*> glyphs;
+    GLuint texture = 0;
+    GLsizei texture_width = 0, texture_height = 0;
+    unsigned int font_size = 0;
+    unsigned int font_index = 0;
+    void Erase();
+public:
+    void appendGlyph(CachedGlyph* glyph);
+    unsigned int getFontSize() const;
+    unsigned int getFontIndex() const;
+    CachedGlyph* getGlyph(char c);
+    std::unordered_map<char, CachedGlyph*> getGlyphs();
+    const GLuint* getTextureHandle();
+    [[nodiscard]] GLsizei getTextureWidth() const;
+    [[nodiscard]] GLsizei getTextureHeight() const;
+public:
+    CachedFont(GLuint texture_id, GLsizei texture_width, GLsizei texture_height, unsigned int font_size, unsigned int font_index);
+    ~CachedFont();
+};
+
+class JGL::FontCache {
+private:
+    std::vector<CachedFont*> cachedFonts{};
+public:
+    std::vector<CachedFont*> getFonts();
+    CachedFont* getFont(unsigned int font_size, unsigned int font_index);
+    void appendFont(CachedFont* font);
+    void newFont(GLuint texture_id, GLsizei texture_width, GLsizei texture_height, unsigned int font_size, unsigned int font_index);
+    void eraseFont(CachedFont* font);
+    void purgeCache();
+};
+
+namespace JGL {
+    inline FontCache fontCache;
+}

include/JGL/types/Light.h

@@ -0,0 +1,65 @@
+#pragma once
+#include <J3ML/LinearAlgebra/Vector4.hpp>
+#include <J3ML/LinearAlgebra/Vector3.hpp>
+#include <J3ML/LinearAlgebra/DirectionVector.hpp>
+#include <J3ML/Geometry/Frustum.hpp>
+#include <Color4.hpp>
+
+namespace JGL {
+    class LightBase;
+    class PointLight;
+    class SpotLight;
+}
+
+class JGL::LightBase {
+protected:
+    Vector4 position = {0, 0, 0, 1};
+    Color4 ambient = {0, 0, 0, 0};
+    Color4 diffuse = {0, 0, 0, 0};
+    Color4 specular = {0, 0, 0, 0};
+
+    float constant_attenuation;
+    float linear_attenuation;
+    float quadratic_attenuation;
+public:
+    [[nodiscard]] Vector3 GetPosition() const;
+    [[nodiscard]] Color4 GetAmbient() const;
+    [[nodiscard]] Color4 GetDiffuse() const;
+    [[nodiscard]] Color4 GetSpecular() const;
+
+    [[nodiscard]] float GetConstantAttenuation() const;
+    [[nodiscard]] float GetLinearAttenuation() const;
+    [[nodiscard]] float GetQuadraticAttenuation() const;
+public:
+    /// Runs a calculation to determine the lights influence on a given point in 3D space.
+    /// @note 0 would be no impact, 1 would be the light is at the same position.
+    [[nodiscard]] virtual float GetAttenuationAtPosition(const Vector3& pos) const { return 0; }
+public:
+    virtual ~LightBase() = default;
+};
+
+/// Omni-directional lights.
+class JGL::PointLight : public LightBase {
+public:
+    [[nodiscard]] float GetAttenuationAtPosition(const Vector3& pos) const override;
+public:
+    PointLight(const Vector3& position, const Color4& ambient, const Color4& diffuse, const Color4& specular, float constant_attenuation = 1, float linear_attenuation = 0, float quadratic_attenuation = 0);
+};
+
+/// Lights which only effect things in a given cone.
+class JGL::SpotLight : public LightBase {
+protected:
+    Matrix3x3 orientation;
+    float exponent;
+    float cut;
+public:
+    /// Create a spotlight in 3D space.
+    /// @param position The position of the light in 3D space.
+    /// @param ro_mat Orientation of the light in 3D space.
+    /// @param cone_size_degrees The size of the cone.
+    /// @param exponent How focused the beam should be, Higher is more focused, Lower is less.
+    /// @param ambient How much this light should effect the ambient light of the scene.
+    /// @param diffuse
+    /// @param specular How much this light should effect specular highlights of objects being influenced by it.
+    SpotLight(const Vector3& position, const Matrix3x3& ro_mat, float cone_size_degrees, float exponent, const Color4& ambient, const Color4& diffuse, const Color4& specular, float constant_attenuation = 1, float linear_attenuation = 0, float quadratic_attenuation = 0);
+};

include/JGL/types/Material.h

@@ -0,0 +1,4 @@
+/// A simple wrapper for OpenGL materials. Lets you set things such as the "shininess" of your elements.
+class Material {
+
+};

include/JGL/types/RenderTarget.h

@@ -0,0 +1,72 @@
+#pragma once
+#include <glad/glad.h>
+#include <Color4.hpp>
+#include <Colors.hpp>
+#include <JGL/types/Enums.h>
+#include <J3ML/LinearAlgebra/Vector2.hpp>
+
+namespace JGL {
+    class RenderTarget;
+    class Texture; // Forward declare.
+}
+
+class JGL::RenderTarget {
+private:
+    Color4 clear_color{0,0,0,0};
+    /// "Size" in this sense is the "Renderable Area" because OpenGL textures behave strangely if they're not square.
+    Vector2 size{0, 0};
+    bool using_depth = false;
+    bool texture_created_by_us = false;
+    GLuint framebuffer_object = 0;
+    GLuint depth_buffer = 0;
+    const Texture* texture = nullptr;
+    MSAA_SAMPLE_RATE msaa_sample_rate = MSAA_SAMPLE_RATE::MSAA_NONE;
+    GLuint msaa_framebuffer_object = 0;
+    GLuint msaa_depth_buffer = 0;
+    GLuint msaa_render_buffer = 0;
+    void Erase();
+public:
+    static GLuint GetActiveGLFramebufferHandle();
+    static void SetActiveGLRenderTarget(const RenderTarget& render_target);
+
+    /** Change the size of the renderable area of the Render Target. **/
+    /// @param new_size new size in px.
+    void Resize(const Vector2& new_size);
+    void SetMSAAEnabled(MSAA_SAMPLE_RATE sample_rate);
+    /// If you're using raw OpenGL commands to draw to this outside of J2D or J3D don't forget to do this.
+    /// Blits the MSAA FBO onto the regular FBO if MSAA is enabled and or If you're rendering to a texture which uses mipmaps,
+    /// It regenerates them so what you drew doesn't disappear at a distance. Otherwise it does nothing.
+    void Blit() const;
+
+    /// Blit a render target onto another. Will break if they're not the same size.
+    static void Blit(const RenderTarget& source, RenderTarget* destination);
+
+    /// Blit a single pixel onto a Render Target.
+    /// @param color The color to render.
+    /// @param position The position in the destination to draw the pixel.
+    /// @param destination The destination RenderTarget.
+    static void Blit(const Color4& color, const Vector2& position, RenderTarget* destination);
+    [[nodiscard]] bool TextureCreatedByRenderTarget() const;
+public:
+    [[nodiscard]] Vector2 GetDimensions() const;
+    [[nodiscard]] MSAA_SAMPLE_RATE GetMSAASampleRate() const;
+    /// Returns whether or not MSAA is enabled, If it is and you're not using J2D || J3D Begin / End,
+    /// You need to run "Blit()" after rendering to your FBO before you show it.
+    /// @note Also, If the texture wasn't made by the RenderTarget you don't want this. It would destroy the texture.
+    [[nodiscard]] bool MSAAEnabled() const;
+    [[nodiscard]] const Texture* GetJGLTexture() const;
+    [[nodiscard]] GLuint GetGLTextureHandle() const;
+    [[nodiscard]] GLuint GetGLFramebufferObjectHandle() const;
+    [[nodiscard]] GLuint GetGLDepthBufferHandle() const;
+    [[nodiscard]] Color4 GetClearColor() const;
+    /// Get the data back from the FBO. This is *not* async friendly.
+    [[nodiscard]] std::vector<GLfloat> GetData() const;
+public:
+    /// Copy constructor. Will always set "texture_created_by_us" to true and use our own texture to avoid memleaks.
+    RenderTarget(const RenderTarget& rhs);
+    /// Create a render target for a texture that already exists. For adding to an existing texture.
+    explicit RenderTarget(const Texture* texture, const Color4& clear_color = Colors::Black);
+    /// Create a Render Target with a brand new texture. Want to render JGL elements onto a texture and display it as a sprite?
+    explicit RenderTarget(const Vector2& size, const Color4& clear_color = Colors::Black, bool use_depth = false, MSAA_SAMPLE_RATE sample_rate = MSAA_SAMPLE_RATE::MSAA_NONE);
+    ~RenderTarget();
+};

include/JGL/types/ShadowMap.h

@@ -0,0 +1,18 @@
+#pragma once
+#include <JGL/types/RenderTarget.h>
+#include <JGL/types/Light.h>
+
+namespace JGL {
+    class ShadowMap;
+}
+
+/// You render your scene with all the static objects from the perspective of each static light to a ShadowMap.
+/// Then, for shadow casters which move. Or lights that move. You only redraw that object from the perspective of each light.
+/// Some of the approaches I saw for this were disgusting - Redacted.
+
+class JGL::ShadowMap {
+private:
+    RenderTarget shadow_map;
+private:
+    void Create(const LightBase* Light);
+};

include/JGL/types/Skeleton.h

@@ -0,0 +1,124 @@
+#pragma once
+#include <vector>
+#include <array>
+#include <J3ML/LinearAlgebra/Vector3.hpp>
+#include <J3ML/LinearAlgebra/Matrix4x4.hpp>
+#include <unordered_map>
+
+namespace JGL {
+    class Bone;
+    class SkeletalVertexAttribute;
+    class Skeleton;
+    class KeyFrame;
+    class Animation;
+    class AnimationState;
+}
+
+class JGL::SkeletalVertexAttribute {
+private:
+    std::array<int, 4> bone_ids = { 0, 0, 0, 0 };
+    std::array<float, 4> bone_weights = { 0, 0, 0, 0 };
+public:
+    [[nodiscard]] std::array<int, 4> GetAffectingBoneIDs() const;
+    [[nodiscard]] std::array<float, 4> GetAffectingBoneWeights() const;
+public:
+    SkeletalVertexAttribute() = default;
+    /// These cannpt be longer than 4.
+    SkeletalVertexAttribute(const std::vector<int>& ids, const std::vector<float>& weights);
+};
+
+class JGL::Bone {
+private:
+    int id = 0;
+    // Not every gltf2 model includes names, but I'll still include it.
+    std::string name;
+    Matrix4x4 inverse_bind_matrix = Matrix4x4::Identity;
+    Matrix4x4 offset_matrix = Matrix4x4::Identity;
+    Matrix4x4 final_transform = Matrix4x4::Identity;
+    int parent_id = -1;
+    std::vector<int> children{};
+public:
+    [[nodiscard]] int GetID() const;
+    [[nodiscard]] std::string GetName() const;
+    [[nodiscard]] Matrix4x4 GetInverseBindMatrix() const;
+    [[nodiscard]] Matrix4x4 GetOffsetMatrix() const;
+    [[nodiscard]] Matrix4x4 GetFinalTransform() const;
+    [[nodiscard]] bool IsRootBone() const;
+public:
+    [[nodiscard]] int GetParentID() const;
+    [[nodiscard]] std::vector<int> GetChildren() const;
+public:
+    void SetParent(int parent_id);
+    void AppendChild(int new_child);
+    void SetID(int numeric_id);
+    void SetName(const std::string& string_id);
+    void SetInverseBindMatrix(const Matrix4x4& inverse_bind);
+    void SetOffsetMatrix(const Matrix4x4& offset);
+    void SetFinalTransformMatrix(const Matrix4x4& final);
+public:
+    ~Bone() = default;
+    Bone() = default;
+    explicit Bone(int numeric_id, const std::string& string_id = "", int parent_id = -1, const std::vector<int>& children_ids = {},
+         const Matrix4x4& inverse_bind = Matrix4x4::Identity, const Matrix4x4& offset = Matrix4x4::Identity, const Matrix4x4& final = Matrix4x4::Identity);
+};
+
+class JGL::Skeleton {
+private:
+    Bone root;
+    std::vector<Bone> bones;
+public:
+    [[nodiscard]] Bone* GetRootBone();
+    [[nodiscard]] Bone* FindBone(int id);
+    [[nodiscard]] Bone* FindBone(const std::string& string_id);
+public:
+    void AppendBone(const Bone& bone);
+public:
+    explicit Skeleton(const Bone& root_bone, const std::vector<Bone>& children = {});
+    ~Skeleton() = default;
+    Skeleton() = default;
+};
+
+class JGL::KeyFrame {
+private:
+    float time_stamp = 0;
+    Skeleton pose;
+public:
+    [[nodiscard]] float GetTimeStamp() const;
+    [[nodiscard]] Skeleton GetSkeleton() const;
+public:
+    KeyFrame(const Skeleton& pose, float time_stamp);
+};
+
+class JGL::Animation {
+private:
+    int id = -1;
+    // Not all animations have names.
+    std::string name;
+    float length = 0;
+    std::vector<KeyFrame> key_frames;
+    std::vector<SkeletalVertexAttribute> vertex_attributes{};
+public:
+    [[nodiscard]] float GetDuratrion() const;
+    [[nodiscard]] std::vector<KeyFrame> GetKeyFrames() const;
+    [[nodiscard]] int GetID() const;
+    [[nodiscard]] std::string GetName() const;
+    [[nodiscard]] std::vector<SkeletalVertexAttribute> GetSkeletalVertexAttributes() const;
+public:
+    void AppendKeyFrame(const KeyFrame& new_key);
+    void SetDuration(float duration);
+    void SetID(int identifier);
+    void SetName(const std::string& name_id);
+public:
+    ~Animation() = default;
+    Animation(int id, float duration, const std::vector<KeyFrame>& key_frames, const std::vector<SkeletalVertexAttribute>& skeletal_vertex_attributes,
+                       const std::string& name = "");
+};
+
+class JGL::AnimationState {
+private:
+    int animation_id = -1;
+    float animation_time = 0;
+public:
+
+};
+

include/JGL/types/Texture.h

@@ -0,0 +1,57 @@
+#pragma once
+#include <ReImage/Image.h>
+#include <J3ML/LinearAlgebra.hpp>
+#include <Color3.hpp>
+#include <Color4.hpp>
+#include <glad/glad.h>
+
+namespace JGL {
+    using namespace ReImage;
+    enum class TextureFilteringMode : u8 {
+        NEAREST = 0, //Fastest for 2D, Sometimes causes graphical issues.
+        BILINEAR = 1, //Fast and pretty, The best for 2D.
+
+        MIPMAP_NEAREST = 2, //Nearest with mipmaps. The fastest for 3D, Sometimes causes graphical issues. Uses more vram.
+        MIPMAP_BILINEAR = 3, //Bilinear with mipmaps, Fast and pretty. Uses more vram.
+        MIPMAP_TRILINEAR = 4 //The prettiest. Still decent speed. Uses more vram.
+    };
+
+    enum class TextureWrappingMode : u8 {
+        REPEAT = 0,
+        MIRRORED_REPEAT = 1,
+        CLAMP_TO_EDGE = 2,
+        CLAMP_TO_BORDER = 3 //Effectively the same as clamp_to_edge
+    };
+
+    /// Represents texture data loaded on the GPU. Contains a handle that can be passed to OpenGL draw calls.
+    class Texture {
+    private:
+        void Erase();
+    protected:
+        GLuint texture_handle = 0;
+        Vector2 texture_size = {0, 0};
+        ReImage::TextureFlag texture_flags;
+        ReImage::TextureFormat texture_format;
+        TextureFilteringMode texture_filtering_mode;
+        TextureWrappingMode texture_wrapping_mode;
+        void load(Image* software_texture, const Vector2& size, const TextureFormat& format, TextureFilteringMode filtering_mode, TextureWrappingMode wrapping_mode);
+    public:
+        /// Load a texture from a file,
+        explicit Texture(const std::string& file, TextureFilteringMode filtering_mode = TextureFilteringMode::BILINEAR, TextureWrappingMode wrapping_mode = TextureWrappingMode::CLAMP_TO_EDGE, const TextureFlag& flags = TextureFlag::INVERT_Y);
+        Texture(Image* software_texture, const Vector2& size, const TextureFormat& format, TextureFilteringMode filtering_mode, TextureWrappingMode wrapping_mode);
+        /* Initialize a texture filled with trash data
+        this is primarily for the RenderTarget */
+        explicit Texture(const Vector2& size);
+        Texture(const Texture& rhs);
+        ~Texture();
+    public:
+        [[nodiscard]] GLuint GetGLTextureHandle() const;
+        [[nodiscard]] Vector2 GetDimensions() const;
+        [[nodiscard]] TextureFilteringMode GetFilteringMode() const;
+        [[nodiscard]] TextureWrappingMode GetWrappingMode() const;
+        [[nodiscard]] TextureFlag GetFlags() const;
+        [[nodiscard]] TextureFormat GetFormat() const;
+        [[nodiscard]] std::vector<Color4> GetPixelData() const;
+    };
+
+}

include/JGL/types/VRamList.h

@@ -0,0 +1,68 @@
+#pragma once
+#include <vector>
+#include <glad/glad.h>
+#include <J3ML/LinearAlgebra/Vector2.hpp>
+#include <J3ML/LinearAlgebra/Vector2i.hpp>
+#include <J3ML/LinearAlgebra/Vector3.hpp>
+#include <J3ML/LinearAlgebra/Vector4.hpp>
+
+namespace JGL {
+    class VRamList;
+}
+
+/// A wrapped for "Vertex Buffer Object" In OpenGL, Store things in VRam.
+class JGL::VRamList {
+private:
+    GLuint list_handle = 0;
+    long num_elements = 0;
+    bool element_array_buffer = false;
+    /// "Spin Locking" fix for multi-threading.
+    bool spin_lock = false;
+    void load(const GLfloat* data, const long& size);
+    void load(const GLuint* data, const long& size);
+    void SetData(void* data, const long& count);
+    void UpdateData(void* data, const long& offset, const long& count);
+    void Erase();
+public:
+    VRamList(const GLuint* data, const long& count);
+    VRamList(const GLfloat* data, const long& count);
+    VRamList(const Vector2* data, const long& count);
+    VRamList(const Vector3* data, const long& count);
+    VRamList(const Vector4* data, const long& count);
+
+    ~VRamList();
+    /** Copying around the VBO data to a new VBO like this is slow.
+     * Pass to function by const reference or pointer always. */
+    VRamList(const VRamList& rhs);
+    VRamList() = default;
+public:
+    [[nodiscard]] GLuint GetHandle() const;
+    /// Returns the number of elements in the list.
+    [[nodiscard]] long GetLength() const;
+    /// Returns the size of the data in bytes.
+    [[nodiscard]] size_t GetDataSize() const;
+    /** Get VBO data back from the GPU. This is *bad* because the CPU is going to wait
+    * for the transfer to finish. Has limited use other than testing. */
+    [[nodiscard]] std::vector<GLfloat> GetDataF() const;
+    [[nodiscard]] std::vector<GLuint> GetDataUI() const;
+    [[nodiscard]] bool IsFloatArray() const;
+    /** Replace the data of an existing VBO in it's entirety. Must be same type. */
+    void SetData(const GLfloat* data, const long& count);
+    void SetData(const Vector2* data, const long& count);
+    void SetData(const Vector3* data, const long& count);
+    void SetData(const Vector4* data, const long& count);
+
+    void SetData(const GLuint* data, const long& count);
+    void SetData(const Vector2i* data, const long& count);
+
+    /** Update only a portion of the data in a VBO. Must be same type.
+     * "offset" refers the number of Typename T into the buffer the data you want to change is.
+     * For ex, offset 0 and length of 1 overwrites the first value. Offset 1 the second etc */
+     void UpdateData(const GLfloat* data, const long& offset, const long& count);
+     void UpdateData(const Vector2* data, const long& offset, const long& count);
+     void UpdateData(const Vector3* data, const long& offset, const long& count);
+     void UpdateData(const Vector4* data, const long& offset, const long& count);
+
+     void UpdateData(const GLuint* data, const long& offset, const long& count);
+     void UpdateData(const Vector2i* data, const long& offset, const long& count);
+};

include/JGL/types/VertexArray.h

@@ -0,0 +1,98 @@
+#pragma once
+
+#include <vector>
+#include <JGL/types/VRamList.h>
+#include <JGL/types/Skeleton.h>
+#include <J3ML/LinearAlgebra/Vector3.hpp>
+#include <J3ML/Geometry/Sphere.hpp>
+#include <J3ML/Geometry/AABB.hpp>
+#include <J3ML/Geometry/OBB.hpp>
+
+namespace JGL {
+    /// A point that is part of an object in 3D space.
+    typedef Vector3 Vertex;
+    /// A direction vector which describes which way a triangle is facing.
+    typedef Vector3 Normal;
+    /// 2D positions that describe how a texture is to be wrapped around a 3D object.
+    typedef Vector2 TextureCoordinate;
+    /// Container for storing 3D models in v-ram, system memory, or both.
+    class VertexArray;
+}
+
+class JGL::VertexArray {
+private:
+    Sphere me_sphere;
+    OBB me_obb;
+protected:
+    virtual void CreateMESphere();
+    virtual void CreateMEOBB();
+protected:
+    std::vector<Animation> animations{};
+protected:
+    VRamList vertices;
+    VRamList indices;
+    VRamList normals;
+    VRamList texture_coordinates;
+protected:
+    /** For models which are not animated, This is intended for a low quality version in
+     * system memory for calculations to be done on the CPU. For models that are, the default pose of the model is here.
+     */
+    std::vector<Vertex> local_vertices{};
+    std::vector<unsigned int> local_indices{};
+    std::vector<TextureCoordinate> local_texture_coordinates{};
+    std::vector<Normal> local_normals{};
+public:
+    /** Don't use these for anything other than drawing because the GPU is gonna spin during read-back */
+    [[nodiscard]] VRamList GetVertices() const;
+    [[nodiscard]] VRamList GetIndices() const;
+    [[nodiscard]] VRamList GetNormals() const;
+    [[nodiscard]] VRamList GetTextureCoordinates() const;
+
+    /** These are for cpu side calculations */
+    [[nodiscard]] std::vector<Vertex> GetLocalVertices() const;
+    [[nodiscard]] std::vector<unsigned int> GetLocalIndices() const;
+    [[nodiscard]] std::vector<TextureCoordinate> GetLocalTextureCoordinates() const;
+    [[nodiscard]] std::vector<Normal> GetLocalNormals() const;
+public:
+    /// Returns true if the VertexArray does not have any animations.
+    bool Static();
+public:
+    /// Provides the minimally enclosing bounding sphere of the vertex array given information from the instance.
+    /// @param scale The scale of the instance.
+    /// @param translate_part The center of the sphere would be shifted in 3D space by this. Primarily for world space.
+    [[nodiscard]] Sphere GetMESphere(const Vector3& scale = Vector3::One, const Vector3& translate_part = Vector3::Zero) const;
+    /// Provides the minimally enclosing bounding sphere of the vertex array given information from the instance.
+    /// @param instance_matrix A Matrix4x4 which contains scale, rotation, and translation.
+    /// @param translate Whether or not to translate to world space by the translate part of the Matrix.
+    [[nodiscard]] Sphere GetMESphere(const Matrix4x4& instance_matrix, bool translate = false) const;
+
+    /// Provides the minimally enclosing oriented bounding box of the vertex array given information from the instance.
+    /// @param rotation_matrix A Matrix3x3 representing rotation in 3D space.
+    /// @param scale The scale of the instance.
+    /// @param translate_part The center of the box would be shifted in 3D space by this. Primarily for world space.
+    [[nodiscard]] OBB GetMEOBB(const Matrix3x3& rotation_matrix, const Vector3& scale = Vector3::One, const Vector3& translate_part = Vector3::Zero) const;
+    /// Provides the minimally enclosing oriented bounding box of the vertex array given information from the instance.
+    /// @param instance_matrix A Matrix4x4 which contains scale, rotation, and translation.
+    /// @param translate Whether or not to translate to world space by the translate part of the Matrix.
+    [[nodiscard]] OBB GetMEOBB(const Matrix4x4& instance_matrix, bool translate = false) const;
+
+    /// Provides the minimally enclosing axis-aligned bounding box of the vertex array given information from the instance.
+    /// @param rotation_matrix A Matrix3x3 representing rotation in 3D space.
+    /// @param scale The scale of the instance.
+    /// @param translate_part The center of the box would be shifted in 3D space by this. Primarily for world space.
+    [[nodiscard]] AABB GetMEAABB(const Matrix3x3& rotation_matrix, const Vector3& scale = Vector3::One, const Vector3& translate_part = Vector3::Zero) const;
+    [[nodiscard]] AABB GetMEAABB(const Matrix4x4& instance_matrix, bool translate = false) const;
+public:
+    /// Vertices are required, Everything else is optional.
+    VertexArray(const Vertex* vertex_positions, const long& vp_length, const unsigned int* vertex_indices = nullptr, const long& vi_length = 0,
+                const Normal* vertex_normals = nullptr, const long& vn_length = 0, const TextureCoordinate* texture_coordinates = nullptr, const long& vt_length = 0);
+
+    /// Vertices are required, Everything else is optional.
+    explicit VertexArray(const std::vector<Vertex>& vertex_positions, const std::vector<unsigned int>& vertex_indices = {},
+                         const std::vector<Normal>& vertex_normals = {}, const std::vector<TextureCoordinate>& texture_coordinates = {});
+};
+
+using namespace JGL;
+static VertexArray Animate(int animation_id, float animation_time);
+static VertexArray Animate(const AnimationState& anim_state);
+

main.cpp

@@ -1,36 +1,71 @@
-#include <glad/glad.h>
 #include <JGL/JGL.h>
 #include <rewindow/types/window.h>
-#include <JGL/Colors.h>
-#include <J3ML/LinearAlgebra/Vector2.h>
+#include <Colors.hpp>
+#include <chrono>
+#include <J3ML/LinearAlgebra/Vector2.hpp>
+#include <JGL/logger/logger.h>
+#include <J3ML/Geometry/AABB.hpp>
 
 using J3ML::LinearAlgebra::Vector2;
 using namespace JGL;
 
-//The Re3D style base projection.
-std::vector<GLfloat> perspective(float fov, float aspect, float nearPlane, float farPlane) {
-    std::vector<float> result(16);
-    float f = 1.0f / tan(fov * 0.5f * M_PI / 180.0f);
-    result[0] = f / aspect;
-    result[5] = f;
-    result[10] = (farPlane + nearPlane) / (nearPlane - farPlane);
-    result[11] = -1.0f;
-    result[14] = (2.0f * farPlane * nearPlane) / (nearPlane - farPlane);
-    return result;
-}
+JGL::Font FreeSans;
+JGL::Font Jupiteroid;
+float fps = 0.0f;
+
+class Gizmo
+{
+public:
+    Gizmo() {}
+    Gizmo(const Vector2& pos) : position(pos) {}
+    bool dragging = false;
+    bool hovered = false;
+    Vector2 position;
+    float range = 6.f;
+
+    void Grab() {
+        if (hovered)
+            dragging = true;
+    }
+    void Release() {
+        dragging = false;
+    }
+
+    void Update(const Vector2& mouse) {
+        if (dragging)
+            position = position.Lerp(mouse, 0.25f);
+
+        hovered = mouse.Distance(position) < range;
+    }
+
+    void Draw() {
+
+
+        if (dragging)
+            J2D::DrawPoint(Colors::White, position, 4.f);
+        else if (hovered)
+            J2D::DrawPoint(Colors::Reds::Crimson, position, 6.f);
+        else
+            J2D::DrawPoint(Colors::Reds::Salmon, position, 3.f);
+
+        J2D::DrawString(Colors::White, std::format("{:.1f},{:.1f}", position.x, position.y), position.x, position.y, 1.f, 10, FreeSans);
+
+
+    }
+};
 
 class Camera {
 public:
     Vector3 position = {0,0,0};
     Vector3 angle = {0,0,0};
 
-    std::array<GLfloat, 16> lookAt(const Vector3& eye, const Vector3& center, const Vector3& up) {
+    std::vector<GLfloat> lookAt(const Vector3& eye, const Vector3& center, const Vector3& up) {
         Vector3 f = Vector3::Normalized((center - eye));
         Vector3 upN = Vector3::Normalized(up);
         Vector3 s = Vector3::Normalized(f.Cross(upN));
         Vector3 u = Vector3::Normalized(s.Cross(f));
 
-        std::array<GLfloat, 16> result = {
+        std::vector<GLfloat> result = {
                 s.x,         u.x,         -f.x,        0.0f,
                 s.y,         u.y,         -f.y,        0.0f,
                 s.z,         u.z,         -f.z,        0.0f,
@@ -57,76 +92,199 @@ struct point {
     GLfloat t;
 };
 
-int FreeSans;
-int Jupiteroid;
+Gizmo a({250, 150});
+Gizmo b({200, 250});
+Gizmo c({350, 300});
+Gizmo d({450, 250});
+
+Texture* image;
+Texture* image_mask;
+RenderTarget* j2d_render_target;
 
 class JGLDemoWindow : public ReWindow::RWindow
 {
 public:
     void initGL() {
         camera = new Camera;
-        auto window_size = getSize();
-        auto aspect = (float) window_size[0] / (float) window_size[1];
 
-        gladLoadGL();
-        JGL::Update(getSize());
-        FreeSans = JGL::LoadFont("assets/fonts/FreeSans.ttf");
-        Jupiteroid = JGL::LoadFont("assets/fonts/Jupiteroid.ttf");
+        if (!JGL::Init(GetSize(), 75, 100))
+            Logger::Fatal("Initialization failed.");
+
+        FreeSans = JGL::Font("assets/fonts/FreeSans.ttf");
+        Jupiteroid = JGL::Font("assets/fonts/Jupiteroid.ttf");
 
-        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-        glMatrixMode(GL_PROJECTION);
-        glLoadIdentity();
-        glMultMatrixf(perspective(75, aspect, 0.001, 100).data());
-        glMatrixMode(GL_MODELVIEW);
-        glLoadIdentity();
         glClearColor(0.f, 0.f, 0.f, 0.f);
-        glViewport(0,0,window_size.x,window_size.y);
         glEnable(GL_DEPTH_TEST);
         glDepthFunc(GL_LESS);
         glDepthMask(GL_TRUE);
+        image = new Texture("assets/sprites/Re3D.png", TextureFilteringMode::BILINEAR);
+        image_mask = new Texture("assets/sprites/alpha_mask_2.png");
+        j2d_render_target = new RenderTarget({540, 540}, {0,0,0,0}, false, MSAA_SAMPLE_RATE::MSAA_NONE);
+
+        //Texture::MultiplyByAlphaMask(*image, *image_mask);
     }
 
-    Vector3 textAngle = {0,0,0};
+    EulerAngleXYZ textAngle = {0,0,0};
+    float fov = 90;
+    float sprite_radians = 0;
+    bool fov_increasing = true;
+    int blit_pos = 0;
+
     void display() {
-        textAngle.y += 2.0f;
+
+        float dt = 1.f / fps;
+        JGL::Update(GetSize());
+
+        if (fov_increasing)
+            fov += 0.025;
+        else
+            fov -= 0.050;
+
+        if (fov >= 120)
+            fov_increasing = false;
+        else if (fov <= 75)
+            fov_increasing = true;
+        //J3D::ChangeFOV(fov);
+
+        sprite_radians += 0.005;
+        textAngle.yaw += 1;
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
         glMatrixMode(GL_MODELVIEW);
         glLoadIdentity();
 
         camera->render();
+        // All 3D elements of the scene and JGL elements *must* be rendered before the 2D stuff
+        /* if rendering to screen space directly. */
 
-        ///All 3D elements of the scene and JGL elements *must* be rendered before the 2d stuff.
+        // If a 3D object has transparency. The things you'd like to see through it must be drawn before.
         J3D::Begin();
-            J3D::DrawLine(JGL::Colors::Red, {-0.33,-0.125,1}, {-1,-0.125,1});
-            J3D::DrawLine(JGL::Colors::Red, {-0.33,-0.125,1}, {-0.33,0.25,1});
-            J3D::DrawString(JGL::Colors::Red, "JGL Sample Text", {-0.33, -0.1, 1.0f},textAngle,  1.f, 32, FreeSans);
+            J3D::DrawLine(Colors::Red, {-0.33,-0.125,1}, {-1,-0.125,1});
+            J3D::DrawLine(Colors::Red, {-0.33,-0.125,1}, {-0.33,0.25,1});
+            J3D::DrawString(Colors::Red, "JGL Sample Text", {-0.33, -0.1, 1.0f}, 1.f, 32, FreeSans, textAngle, true);
+            //J3D::WireframeSphere(Colors::Green, {0,0,0.5f}, 0.25f, 1, 128, 128);
+            Sphere sphere = {{0,0, 0.5f}, 0.2125};
+            J3D::BatchWireframeRevoSphere(Colors::Green, &sphere, 1, 1, 16, 16, true);
+            J3D::FillAABB(Colors::Whites::AliceBlue, {0,0,0.5f}, {0.1f, 0.1f, 0.1f});
+            J3D::WireframeAABB(Colors::Gray, {0,0,0.5f}, {0.11f, 0.06f, 0.11f});
+
+            AABB boxes[1] = {{Vector3(-0.2125, -0.2125,0.28750), Vector3(0.2125,0.2125,0.7125)}};
+            J3D::BatchWireframeAABB(Colors::Yellow, boxes, 1, 1);
+            //J3D::WireframeOBB(Colors::Red, {0, 0, 1.5f}, {0.40f, 0.10f, 0.10f}, {0,textAngle.y, 0});
+            //J3D::FillSphere({0,255,0,120}, sphere);
+
+            //J3D::DrawCubicBezierCurve(Colors::Blue, {0,0,0.3}, {0,0,0.5}, {0.2,0,0.3}, {0.2, 0.3, 0.1}, 30);
+
+            //J3D::WireframeIcosahedron(Colors::Green, {0,0,0.5f}, 0.125f, 1.f);
         J3D::End();
 
-        J2D::Begin();
+        J2D::Begin(j2d_render_target, true);
             J2D::FillRect(Colors::Blue, {0,52}, {100,100});
-            J2D::FillRect(Color4::FromColor3(Colors::Pinks::HotPink), {68, 120}, {32, 32});
-            J2D::FillGradientRect(Colors::Red, Colors::Blue, Gradient::DiagonalBottomLeft, {100,52}, {100,100});
-            J2D::FillRoundedRect(JGL::Colors::Red, {200, 52}, {100, 100}, 8, 8);
-            J2D::FillRoundedRect(JGL::Colors::Purples::BlueViolet, {300, 52}, {100, 100}, 8, 4);
+            J2D::DrawSprite(image, {300, 400}, sprite_radians * 0.10f, {0.5,0.5}, {1, 1}, Colors::White);
+            J2D::DrawMirrorSprite(image, {400, 300}, Direction::Horizontal | Direction::Vertical, sprite_radians, {0.5,0.5}, {1, 1}, Colors::White);
+            J2D::DrawPartialSprite(image, {225, 300}, image->GetDimensions() * 0.25, image->GetDimensions() * 0.75, sprite_radians, {0.5, 0.5}, {1,1}, Colors::White);
+            J2D::FillRect(Colors::Pinks::HotPink, {68, 120}, {32, 32});
+            J2D::FillGradientRect(Colors::Red, Colors::Blue, Direction::Diagonal_SWNE, {100,52}, {100,100});
+            J2D::FillRoundedRect(Colors::Red, {200, 52}, {100, 100}, 8, 8);
+            J2D::FillRoundedRect(Colors::Purples::BlueViolet, {300, 52}, {100, 100}, 8, 4);
+            J2D::FillCircle(Colors::White, {52, 204}, 50, 24);
+            J2D::OutlineCircle(Colors::White, {153, 204}, 50, 24);
 
-            J2D::FillCircle(JGL::Colors::White, {52, 204}, 50, 24);
-            J2D::OutlineCircle(JGL::Colors::White, {153, 204}, 50, 24);
-
-            J2D::FillTriangle(Colors::Red, {{0, 275}, {0, 375}, {100, 375}});
+            J2D::FillChamferRect(Colors::Reds::LightSalmon, {150, 400}, {64, 64}, 5);
+            J2D::OutlineRoundedRect(Colors::Reds::LightCoral, {250, 350}, {128, 128}, 10, 2);
+            std::vector<Vector2> points = {{1,1}, {4,4}, {8,8}, {16,16}, {32,32}};
+            J2D::FillGradientTriangle(Color4(Colors::Red), Color4(Colors::Green), Color4(Colors::Blue), {{0, 275}, {0, 375}, {100, 375}});
             J2D::OutlineTriangle(Colors::Blue, {{100, 275}, {0, 275}, {100, 375}});
-            J2D::DrawGradientLine(JGL::Colors::Red, JGL::Colors::Blue, {105, 375}, {200, 275}, 2);
+            J2D::DrawGradientLine(Colors::Red, Colors::Blue, {105, 375}, {200, 275}, 2);
+            auto result = Jupiteroid.MeasureString("Jupiteroid Font", 16);
 
-            J2D::DrawString(JGL::Colors::Green, "Jupteroid Font", 0.f, 16, 1.f, 16, Jupiteroid);
-            J2D::DrawString(JGL::Colors::White, "Position: " + std::to_string(camera->position.x) + " " + std::to_string(camera->position.y) + " " + std::to_string(camera->position.z), 0, 33, 1,16, Jupiteroid);
-            J2D::DrawString(JGL::Colors::White, "ViewAngle: " + std::to_string(camera->angle.x) + " " + std::to_string(camera->angle.y) + " " + std::to_string(camera->angle.z), 0, 50, 1,16, Jupiteroid);
+            //J2D::FillRect(Colors::Gray, {0, 0}, result);
+            J2D::DrawString(Colors::Green, "Jupteroid Font", 0.f, 0, 1.f, 16, Jupiteroid);
+            J2D::DrawString(Colors::White, "Position: " + std::to_string(camera->position.x) + " " + std::to_string(camera->position.y) + " " + std::to_string(camera->position.z), 0, 16, 1,16, Jupiteroid);
+            J2D::DrawString(Colors::White, "ViewAngle: " + std::to_string(camera->angle.x) + " " + std::to_string(camera->angle.y) + " " + std::to_string(camera->angle.z), 0, 33, 1,16, Jupiteroid);
+            J2D::DrawString(Colors::White, "Framerate: " + std::to_string((int) fps), 0, 48, 1, 16, Jupiteroid);
+            std::array<Vector2, 5> polygon = {Vector2(200, 400), {220, 420}, {220, 430}, {230, 410}, {200, 400}};
+            J2D::OutlinePolygon(Colors::White, polygon.data(), polygon.size());
+            //J2D::FillPolygon(Colors::White, {{200, 400}, {220, 420}, {220, 430}, {230, 410}, {200, 400}});
+            J2D::DrawCubicBezierCurve(Colors::Blues::CornflowerBlue,
+                                      a.position,
+                                      b.position,
+                                      c.position,
+                                      d.position
+                                      , 20, 1.5f);
+
+            a.Draw();
+            b.Draw();
+            c.Draw();
+            d.Draw();
         J2D::End();
+        RenderTarget::Blit(Colors::Red, {0, 0}, j2d_render_target);
+
+        //Draw the Render Target that we just drew all that stuff onto.
+
+        J2D::Begin();
+            J2D::DrawPartialRenderTarget(j2d_render_target, {0, 0}, {0,0}, {512, 512});
+            J2D::DrawSprite(image, image_mask, {0, 0}, 0.25, {0.5, 0.5}, {1,1});
+            //J2D::DrawSprite(, {0, 0}, 0, {0.5, 0.5}, {1,1}, Colors::White);
+
+            //J2D::DrawSprite( {0, 0}, 0, {0.5, 0.5}, {1,1}, Colors::White);
+        J2D::End();
+
     }
 
     void OnRefresh(float elapsed) override {
+        if (IsKeyDown(Keys::RightArrow))
+            camera->angle.y += 45.f * elapsed;
+        if (IsKeyDown(Keys::LeftArrow))
+            camera->angle.y -= 45.f * elapsed;
+        if (IsKeyDown(Keys::UpArrow))
+            camera->angle.x -= 45.f * elapsed;
+        if (IsKeyDown(Keys::DownArrow))
+            camera->angle.x += 45.f * elapsed;
+        if (IsKeyDown(Keys::Space))
+            camera->position.y += 1.f * elapsed;
+        if (IsKeyDown(Keys::LeftShift))
+            camera->position.y -= 1.f * elapsed;
+
+         //This is wrong of course. Just for testing purposes.
+        if (IsKeyDown(Keys::W))
+            camera->position.z += 1.f * elapsed;
+        if (IsKeyDown(Keys::S))
+            camera->position.z -= 1.f * elapsed;
+        if (IsKeyDown(Keys::A))
+            camera->position.x += 1.f * elapsed;
+        if (IsKeyDown(Keys::D))
+            camera->position.x -= 1.f * elapsed;
+
+
+        auto mouse = GetMouseCoordinates();
+        a.Update(mouse);
+        b.Update(mouse);
+        c.Update(mouse);
+        d.Update(mouse);
         display();
-        if (glGetError() != GL_NO_ERROR)
-            exit(1);
-        glSwapBuffers();
+        int glError = glGetError();
+        if (glError != GL_NO_ERROR)
+            std::cout << glError << std::endl;
+        GLSwapBuffers();
+    }
+
+
+    void OnMouseButtonDown(const ReWindow::MouseButtonDownEvent & ev) override
+    {
+        RWindow::OnMouseButtonDown(ev);
+        a.Grab();
+        b.Grab();
+        c.Grab();
+        d.Grab();
+    }
+
+    void OnMouseButtonUp(const ReWindow::MouseButtonUpEvent & ev) override
+    {
+        RWindow::OnMouseButtonUp(ev);
+        a.Release();
+        b.Release();
+        c.Release();
+        d.Release();
     }
 
     bool OnResizeRequest(const ReWindow::WindowResizeRequestEvent& e) override {return true;}
@@ -136,14 +294,19 @@ public:
 
 int main(int argc, char** argv) {
     auto* window = new JGLDemoWindow("JGL Demo Window", 1280, 720);
-    window->setRenderer(RenderingAPI::OPENGL);
+    window->SetRenderer(RenderingAPI::OPENGL);
     window->Open();
     window->initGL();
-    window->setResizable(false);
+    window->SetResizable(true);
+    window->SetVsyncEnabled(false);
 
-    while (window->isAlive()) {
-        window->pollEvents();
-        window->refresh();
+    while (window->IsAlive()) {
+        std::chrono::high_resolution_clock::time_point start = std::chrono::high_resolution_clock::now();
+        window->PollEvents();
+        window->Refresh();
+        std::chrono::high_resolution_clock::time_point stop = std::chrono::high_resolution_clock::now();
+        std::chrono::duration<float> frame_time = stop - start;
+        fps = 1.0f / frame_time.count();
     }
     return 0;
 }

reci/scripts/builddeps.reci

@@ -0,0 +1 @@
+Main:new("Install build dependencies", "apt-get install -yq libgl1-mesa-dev libfreetype-dev")

src/FontCache.cpp

@@ -1,119 +0,0 @@
-#include <JGL/FontCache.h>
-
-using namespace JGL;
-
-char CachedGlyph::getCharacter() {
-    return character;
-}
-
-const GLuint* CachedGlyph::getTexture() {
-    return &texture;
-}
-
-CachedGlyph::CachedGlyph(GLuint texture_id, char c, float x2offset, float y2offset, float w, float h, float advanceX, float advanceY) {
-    texture = texture_id;
-    character = c;
-    this->x2offset = x2offset;
-    this->y2offset = y2offset;
-    this->w = w;
-    this->h = h;
-    this->advanceX = advanceX;
-    this->advanceY = advanceY;
-}
-
-void JGL::CachedFont::appendGlyph(JGL::CachedGlyph* glyph) {
-    glyphs.push_back(glyph);
-}
-
-unsigned int JGL::CachedFont::getFontSize() {
-    return font_size;
-}
-
-unsigned int JGL::CachedFont::getFontIndex() {
-    return font_index;
-}
-
-CachedGlyph* JGL::CachedFont::getGlyph(char c) {
-    for (const auto& g : glyphs)
-        if (c == g->getCharacter())
-            return g;
-    return nullptr;
-}
-
-CachedFont::CachedFont(unsigned int font_size, unsigned int font_index) {
-    this->font_size = font_size;
-    this->font_index = font_index;
-}
-
-void CachedFont::eraseGlyph(CachedGlyph* glyph) {
-    if (glyph == nullptr)
-        return;
-
-    for (int i = 0; i < glyphs.size(); i++)
-        if (glyphs[i] == glyph)
-            glDeleteTextures(1, glyphs[i]->getTexture()),
-            delete glyphs[i],
-            glyphs.erase(glyphs.begin() + i);
-}
-
-void CachedFont::eraseGlyph(char c) {
-    for (int i = 0; i < glyphs.size(); i++)
-        if (glyphs[i]->getCharacter() == c)
-            glDeleteTextures(1, glyphs[i]->getTexture()),
-            delete glyphs[i],
-            glyphs.erase(glyphs.begin() + i);
-}
-
-void CachedFont::eraseGlyph(GLuint texture_id) {
-    for (int i = 0; i < glyphs.size(); i++)
-        if (glyphs[i]->getTexture() == &texture_id)
-            glDeleteTextures(1, glyphs[i]->getTexture()),
-            delete glyphs[i],
-            glyphs.erase(glyphs.begin() + i);
-}
-
-std::vector<CachedGlyph*>* CachedFont::getGlyphs() {
-    return &glyphs;
-}
-
-void FontCache::appendFont(CachedFont* font) {
-    cachedFonts.push_back(font);
-}
-
-void FontCache::newFont(unsigned int font_size, unsigned int font_index) {
-    auto* font = new CachedFont(font_size, font_index);
-    cachedFonts.push_back(font);
-}
-
-void FontCache::eraseFont(CachedFont* font) {
-    for (int i = 0; i < cachedFonts.size(); i++) {
-        if (cachedFonts[i] == font) {
-            for (auto& g: *cachedFonts[i]->getGlyphs())
-                cachedFonts[i]->eraseGlyph(g);
-
-            delete cachedFonts[i];
-            cachedFonts.erase(cachedFonts.begin() + i);
-        }
-    }
-}
-
-void FontCache::purgeCache() {
-    //Remove every font from the cache.
-    for (const auto& font : cachedFonts)
-        eraseFont(font);
-    cachedFonts = {};
-}
-
-std::vector<CachedFont*>* FontCache::getFonts() {
-    return &cachedFonts;
-}
-
-CachedFont* FontCache::getFont(unsigned int font_size, unsigned int font_index) {
-    if (cachedFonts.empty())
-        return nullptr;
-
-    for (auto* f : cachedFonts)
-        if (f->getFontIndex() == font_index && f->getFontSize() == font_size)
-            return f;
-    return nullptr;
-}

src/JGL/TextRendering.cpp

@@ -1,223 +0,0 @@
-#include <JGL/JGL.h>
-
-#if __linux__
-    #include <freetype2/ft2build.h>
-    #include FT_FREETYPE_H
-#endif
-#if _WIN32
-    #include <ft2build.h>
-    #include FT_FREETYPE_H
-#endif
-
-namespace JGL {
-    FT_Library ft;
-
-    struct Font {
-        int index = 0;
-        FT_Face face;
-    };
-    std::vector<Font> faces;
-
-    int LoadFont(const std::string &font_path) {
-        if (ft == nullptr)
-            return -1;
-
-        Font font;
-        if (FT_New_Face(ft, font_path.c_str(), 0, &font.face)) {
-            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
-            return -1;
-        }
-        unsigned int newIndex = 0;
-        for (const auto& f : faces)
-            if (f.index >= newIndex)
-                newIndex = f.index + 1;
-
-        font.index = newIndex;
-        faces.push_back(font);
-        std::cout << "Loaded font from " << font_path << " with index " << newIndex << std::endl;
-        return newIndex;
-    }
-
-    bool InitTextEngine() {
-        if (FT_Init_FreeType(&ft))
-            return true;
-        return false;
-    }
-
-    void UnloadFont(int font_index) {
-        for (int i = 0; i < faces.size(); i++)
-            if (faces[i].index == font_index)
-                FT_Done_Face(faces[i].face),
-                faces.erase(faces.begin() + i);
-    }
-    FontCache fontCache;
-
-    void J2D::DrawString(const Color3& color, std::string text, float x, float y, float scale, u32 size, unsigned int font_index) {
-        glUseProgram(0); // Fixed-function pipeline.
-
-        Font font{};
-        CachedFont* cachedFont = fontCache.getFont(size, font_index);
-
-        //If the font doesn't exist in the cache yet.
-        if (!cachedFont) {
-            fontCache.newFont(size, font_index);
-            cachedFont = fontCache.getFont(size, font_index);
-        }
-
-        //Set up the regular font.
-        for (const auto& f : faces)
-            if (f.index == font_index)
-                font = f;
-        if (font.face == nullptr)
-            return;
-
-        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, 1.0f);
-
-        FT_Set_Pixel_Sizes(font.face, 0, size);
-
-        std::vector<GLuint> textures(text.length());
-
-        //For each character
-        for (int i = 0; i < text.length(); i++) {
-            float x2, y2, w, h;
-            //If the font is in the cache already.
-            if (cachedFont->getGlyph(text.c_str()[i])) {
-                CachedGlyph* glyph = cachedFont->getGlyph(text.c_str()[i]);
-
-                glBindTexture(GL_TEXTURE_2D, *glyph->getTexture());
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
-
-                x2 = x + glyph->x2offset * scale;
-                y2 = y - glyph->y2offset * scale; // Adjust y-coordinate
-                w = glyph->w * scale;
-                h = glyph->h * scale;
-                x += glyph->advanceX * scale;
-                y += glyph->advanceY * scale;
-
-            } else {
-                if (FT_Load_Char(font.face, text.c_str()[i], FT_LOAD_RENDER))
-                    continue;
-
-                FT_GlyphSlot g = font.face->glyph;
-                glGenTextures(1, &textures.at(i));
-                glBindTexture(GL_TEXTURE_2D, textures[i]);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
-                glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, g->bitmap.width, g->bitmap.rows, 0, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap.buffer);
-
-                x2 = x + g->bitmap_left * scale;
-                y2 = -y - g->bitmap_top * scale; // Adjust y-coordinate
-                w = g->bitmap.width * scale;
-                h = g->bitmap.rows * scale;
-                x += (g->advance.x >> 6) * scale;
-                y += (g->advance.y >> 6) * scale;
-                cachedFont->appendGlyph(new CachedGlyph(textures.at(i), text.c_str()[i], g->bitmap_left, g->bitmap_top, g->bitmap.width, g->bitmap.rows, (g->advance.x >> 6), (g->advance.y >> 6)));
-            }
-
-            GLfloat vertices[12] = {x2, y2, x2, y2 + h, x2 + w, y2 + h,x2, y2, x2 + w, y2 + h, x2 + w, y2};
-
-            GLfloat textureCoordinates[12] = {0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0};
-            glTexCoordPointer(2, GL_FLOAT, sizeof(GL_FLOAT) * 2, &textureCoordinates);
-            glVertexPointer(2, GL_FLOAT, sizeof(GL_FLOAT) * 2, &vertices);
-            glDrawArrays(GL_TRIANGLES, 0, 6);
-        }
-        glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
-    }
-
-    void J3D::DrawString(const Color3& color, const std::string& text, const Vector3& pos, const Vector3& angle, float scale, u32 size, unsigned int font_index) {
-        //TODO figure out what the scale should actually be mathematically.
-        scale = scale * 0.002f;
-        scale = -scale;
-
-        float x = pos.x;
-        float y = pos.y;
-        float z = pos.z;
-        std::vector<GLuint> textures(text.length());;
-        glUseProgram(0); // Fixed-function pipeline.
-        glColor4f(color.r, color.g, color.b, 1.0f);
-
-        Font font;
-        for (auto& f : faces)
-            if (f.index == font_index)
-                font = f;
-        if (font.face == NULL) {
-            std::cout << "null font" << std::endl;
-            return;
-        }
-
-        FT_Set_Pixel_Sizes(font.face, 0, size);
-
-        glPushMatrix();
-        glTranslatef(x, y, z);
-        glRotatef(angle.x, 1.0f, 0.0f, 0.0f);
-        glRotatef(angle.y, 0.0f, 1.0f, 0.0f);
-        glRotatef(angle.z, 0.0f, 0.0f, 1.0f);
-        x = 0;
-        y = 0;
-        z = 0;
-
-        for (int i = 0; i < text.length(); i++)
-        {
-            if (FT_Load_Char(font.face, text.c_str()[i], FT_LOAD_RENDER))
-                continue;
-
-            FT_GlyphSlot g = font.face->glyph;
-            glGenTextures(1, &textures.at(i));
-            glBindTexture(GL_TEXTURE_2D, textures[i]);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
-            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, g->bitmap.width, g->bitmap.rows, 0, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap.buffer);
-
-            float x2 = x + g->bitmap_left * scale;
-            float y2 = y - g->bitmap_top * scale; // Adjust y-coordinate
-            float z2 = z;
-            float w = g->bitmap.width * scale;
-            float h = g->bitmap.rows * scale;
-
-            glBegin(GL_TRIANGLES);
-
-            glTexCoord2f(0, 0);
-            glVertex3f(x2, y2, z2);
-
-            glTexCoord2f(0, 1);
-            glVertex3f(x2, y2 + h, z2);
-
-            glTexCoord2f(1, 1);
-            glVertex3f(x2 + w, y2 + h, z2);
-
-            glTexCoord2f(0, 0);
-            glVertex3f(x2, y2, z2);
-
-            glTexCoord2f(1, 1);
-            glVertex3f(x2 + w, y2 + h, z2);
-
-            glTexCoord2f(1, 0);
-            glVertex3f(x2 + w, y2, z2);
-
-            glEnd();
-
-            x += (g->advance.x >> 6) * scale;
-            y += (g->advance.y >> 6) * scale;
-        }
-
-        for (unsigned int& texture : textures)
-            glDeleteTextures(1, &texture);
-
-        glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
-
-        glPopMatrix();
-    }
-}

src/ShapeCache.cpp

@@ -0,0 +1,38 @@
+#include <JGL/ShapeCache.h>
+
+void JGL::ShapeCache::Init() {
+    if (!cube_vertex_data) {
+        std::array<Vector3, 24> vertices {
+                Vector3(-1, 1, -1), Vector3(1, 1, -1),
+                Vector3(1, 1, -1), Vector3(1, 1, 1),
+                Vector3(1, 1, 1), Vector3(-1, 1, 1),
+                Vector3(-1, 1, 1), Vector3(-1, 1, -1),
+                Vector3(-1, -1, -1), Vector3(1, -1, -1),
+                Vector3(1, -1, -1), Vector3(1, -1, 1),
+                Vector3(1, -1, 1), Vector3(-1, -1, 1),
+                Vector3(-1, -1, 1), Vector3(-1, -1, -1),
+                Vector3(-1, -1, -1), Vector3(-1, 1, -1),
+                Vector3(1, -1, -1), Vector3(1, 1, -1),
+                Vector3(1, -1, 1), Vector3(1, 1, 1),
+                Vector3(-1, -1, 1), Vector3(-1, 1, 1)
+        };
+        cube_vertex_data = new VRamList(vertices.data(), vertices.size());
+    }
+
+    if (!cube_index_data) {
+        std::array<GLuint, 36> indices {
+                0, 1, 3, 0, 3, 5,
+
+                8, 9, 11, 8, 11, 13,
+
+                5, 3, 11, 5, 11, 13,
+
+                0, 1, 9, 0, 9, 8,
+
+                0, 5, 13, 0, 13, 8,
+
+                1, 3, 11, 1, 11, 9
+        };
+        cube_index_data = new VRamList(indices.data(), indices.size());
+    }
+}

src/TextRendering.cpp

@@ -0,0 +1,251 @@
+#include <JGL/JGL.h>
+
+
+#if __linux__
+    #include <freetype2/ft2build.h>
+    #include FT_FREETYPE_H
+    #include FT_OUTLINE_H
+#endif
+
+#if _WIN32
+    #include <ft2build.h>
+    #include FT_FREETYPE_H
+    #include FT_OUTLINE_H
+#endif
+
+#include <JGL/types/Font.h>
+#include <JGL/types/FontCache.h>
+#include <JGL/logger/logger.h>
+
+namespace JGL {
+    CachedFont* CacheFont(const Font& font, u32 size) {
+
+        glEnable(GL_TEXTURE_2D);
+        CachedFont* cachedFont;
+        FT_Set_Pixel_Sizes(font.face, 0, size);
+        Logger::Debug("Caching font data...");
+        GLuint texture_id;
+        glGenTextures(1, &texture_id);
+        glBindTexture(GL_TEXTURE_2D, texture_id);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
+
+        GLsizei width = 0;
+        GLsizei max_height = 0;
+        FT_ULong charcode;
+        FT_UInt gindex;
+
+        //We have to loop over the available glyphs twice as we need the
+        //final width and height of the texture_handle before we can construct it
+        //and subsequently upload the glyph data.
+        charcode = FT_Get_First_Char(font.face, &gindex);
+        //Strings are char-based so we only handle charcodes within the extended ASCII range.
+        while (gindex != 0 && charcode < 255) {
+            if (FT_Load_Char(font.face, charcode, FT_LOAD_RENDER))
+                std::cout << "Error::FREETYPE: Failed to load charcode: " << charcode << std::endl;
+
+            FT_GlyphSlot g = font.face->glyph;
+            width += g->bitmap.width;
+            max_height = std::max(max_height, (GLsizei) g->bitmap.rows);
+            charcode = FT_Get_Next_Char(font.face, charcode, &gindex);
+        }
+
+        fontCache.newFont(texture_id, width, max_height, size, font.index);
+        cachedFont = fontCache.getFont(size, font.index);
+
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, width, max_height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);
+
+        GLsizei xoffset = 0;
+
+        charcode = FT_Get_First_Char(font.face, &gindex);
+        while (gindex != 0 && charcode < 255) {
+            if (FT_Load_Char(font.face, charcode, FT_LOAD_RENDER))
+                std::cout << "Error::FREETYPE: Failed to load charcode: " << charcode << std::endl;
+
+            FT_GlyphSlot g = font.face->glyph;
+            glTexSubImage2D(GL_TEXTURE_2D, 0, xoffset, 0, g->bitmap.width, g->bitmap.rows, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap.buffer);
+
+            GLfloat u0 = (GLfloat)xoffset / cachedFont->getTextureWidth();
+            GLfloat u1 = u0 + (GLfloat)g->bitmap.width / cachedFont->getTextureWidth();
+
+            GLfloat v0 = 0.0f;
+            GLfloat v1 = (GLfloat)g->bitmap.rows / cachedFont->getTextureHeight();
+
+            std::array<GLfloat, 12> texcoords
+            {
+                u0, v0,
+                u0, v1,
+                u1, v1,
+                u0, v0,
+                u1, v1,
+                u1, v0
+            };
+
+            cachedFont->appendGlyph(new CachedGlyph((char)charcode, texcoords, g->bitmap_left, g->bitmap_top, g->bitmap.width, g->bitmap.rows, (g->advance.x >> 6), (g->advance.y >> 6)));
+
+            xoffset += g->bitmap.width;
+            charcode = FT_Get_Next_Char(font.face, charcode, &gindex);
+        }
+        glDisable(GL_TEXTURE_2D);
+        return cachedFont;
+    }
+
+    void J2D::DrawString(const Color4& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font) {
+        // Offset by height to render at "correct" location.
+        y += size;
+
+        bool round_text_coords_for_crisp_rendering = true;
+
+        // TODO: This currently does not account for non-integer scale factors.
+        if (round_text_coords_for_crisp_rendering)
+        {
+            x = J3ML::Math::Floor(x);
+            y = J3ML::Math::Floor(y);
+        }
+
+        CachedFont* cachedFont = fontCache.getFont(size, font.index);
+
+        if (font.face == nullptr)
+            Logger::Fatal("Drawing a string with an uninitialized font?");
+
+        //If the font doesn't exist in the cache yet.
+        if (!cachedFont)
+            cachedFont = CacheFont(font, size);
+
+        glColor4ubv(color.ptr());
+
+        glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+        glEnable(GL_TEXTURE_2D);
+        //Texture parameters are restored when the texture_handle is bound
+        glBindTexture(GL_TEXTURE_2D, *cachedFont->getTextureHandle());
+
+        std::vector<std::array<GLfloat, 12>> vertices(text.size());
+        std::vector<std::array<GLfloat, 12>> texcoords(text.size());
+
+        for (int i = 0; i < text.length(); i++) {
+            float x2, y2, w, h;
+            CachedGlyph* glyph = cachedFont->getGlyph(text.c_str()[i]);
+            if (glyph == nullptr)
+                continue;
+
+            x2 = x + glyph->x2offset * scale;
+            y2 = y - glyph->y2offset * scale; // Adjust y-coordinate
+            w = glyph->w * scale;
+            h = glyph->h * scale;
+            x += glyph->advanceX * scale;
+            y += glyph->advanceY * scale;
+
+            std::array<GLfloat, 12> glyph_vertices
+            {
+                x2,     y2,
+                x2,     y2 + h,
+                x2 + w, y2 + h,
+                x2,     y2,
+                x2 + w, y2 + h,
+                x2 + w, y2
+            };
+
+            auto glyph_texcoords = glyph->getTexCoords();
+            vertices[i] = glyph_vertices;
+            texcoords[i] = glyph_texcoords;
+        }
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices.data());
+        glTexCoordPointer(2, GL_FLOAT, sizeof(Vector2), texcoords.data());
+        glDrawArrays(GL_TRIANGLES, 0, (int) vertices.size() * 6);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glColor4f(1, 1, 1, 1);
+        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+        glDisable(GL_TEXTURE_2D);
+    }
+
+    void J3D::DrawString(const Color4& color, const std::string& text, const Vector3& pos, float scale, u32 size, const Font& font, const EulerAngleXYZ& angle, bool draw_back_face) {
+        // TODO: Determine the proper scale factor mathematically
+        // This number was arrived at holistically.
+        scale = scale * 0.002f;
+        scale = -scale;
+        float x = pos.x;
+        float y = pos.y;
+        float z = pos.z;
+
+        // TODO: this is broken because it causes the text to be shifted downwards.
+        /*
+        bool round_text_coords_for_crisp_rendering = true;
+
+        // TODO: This currently does not account for non-integer scale factors.
+        if (round_text_coords_for_crisp_rendering)
+        {
+            x = J3ML::Math::Floor(x);
+            y = J3ML::Math::Floor(y);
+            z = J3ML::Math::Floor(z);
+        }
+         */
+
+        CachedFont* cachedFont = fontCache.getFont(size, font.index);
+        if (font.face == nullptr)
+            jlog::Fatal("Drawing a string with an uninitialized font?");
+
+        if (!cachedFont)
+            cachedFont = CacheFont(font, size);
+
+        glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+        glEnable(GL_TEXTURE_2D);
+        glColor4ubv(color.ptr());
+        glBindTexture(GL_TEXTURE_2D, *cachedFont->getTextureHandle());
+
+        std::vector<std::array<GLfloat, 18>> vertices(text.size());
+        std::vector<std::array<GLfloat, 12>> texcoords(text.size());
+
+        glPushMatrix();
+        glTranslatef(x, y, z);
+        glRotatef(angle.pitch, 1.0f, 0.0f, 0.0f);
+        glRotatef(angle.yaw, 0.0f, 1.0f, 0.0f);
+        glRotatef(angle.roll, 0.0f, 0.0f, 1.0f);
+
+        x = y = z = 0;
+        for (int i = 0; i < text.length(); i++) {
+            CachedGlyph* glyph = cachedFont->getGlyph(text[i]);
+
+            float x2 = x + glyph->x2offset * scale;
+            float y2 = y - glyph->y2offset * scale;
+            float w = glyph->w * scale;
+            float h = glyph->h * scale;
+
+            std::array<GLfloat, 18> glyph_vertices
+            {
+                x2,     y2,     z,
+                x2,     y2 + h, z,
+                x2 + w, y2 + h, z,
+                x2,     y2,     z,
+                x2 + w, y2 + h, z,
+                x2 + w, y2,     z
+            };
+
+            vertices[i] = glyph_vertices;
+            texcoords[i] = glyph->getTexCoords();
+            x += glyph->advanceX * scale;
+            y += glyph->advanceY * scale;
+        }
+
+        glVertexPointer(3, GL_FLOAT, sizeof(Vector3), vertices.data());
+        glTexCoordPointer(2, GL_FLOAT, sizeof(Vector2), texcoords.data());
+
+        if (!draw_back_face)
+            glEnable(GL_CULL_FACE);
+            glCullFace(GL_BACK);
+
+        glDrawArrays(GL_TRIANGLES, 0, (int) vertices.size() * 6);
+
+        if (!draw_back_face)
+            glDisable(GL_CULL_FACE);
+
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glColor4f(1, 1, 1, 1);
+        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+        glDisable(GL_TEXTURE_2D);
+        glPopMatrix();
+    }
+}

src/logger/logger.cpp

@@ -0,0 +1,9 @@
+#include <JGL/logger/logger.h>
+
+namespace JGL::Logger {
+    using namespace jlog;
+
+    GenericLogger Fatal {"JGL::fatal", GlobalLogFile, Colors::Reds::Crimson, Colors::Gray, Colors::Gray, Colors::Reds::Crimson, Colors::White};
+    GenericLogger Debug {"JGL::debug", GlobalLogFile, Colors::Purples::Purple, Colors::Gray, Colors::Gray, Colors::Purples::Purple, Colors::White};
+    GenericLogger Error {"JGL::error", GlobalLogFile, Colors::Red, Colors::Gray, Colors::Gray, Colors::Red, Colors::White};
+}

src/types/Font.cpp

@@ -0,0 +1,154 @@
+
+#include <vector>
+#include <string>
+#include <iostream>
+#include <glad/glad.h>
+#include <JGL/logger/logger.h>
+
+#if __linux__
+    #include <freetype2/ft2build.h>
+    #include FT_FREETYPE_H
+    #include FT_OUTLINE_H
+#endif
+
+#if _WIN32
+    #include <ft2build.h>
+    #include FT_FREETYPE_H
+    #include FT_OUTLINE_H
+#endif
+
+#include <JGL/types/Font.h>
+#include <JGL/types/FontCache.h>
+
+namespace JGL::Detail
+{
+    FT_Library ft;
+
+    std::vector<Font> fonts;
+
+    bool InitTextEngine() {
+
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1); // NOTE: This MUST be called for text rendering to work properly!!!
+        // Keep note of this, might cause problems later?
+
+        if (ft != nullptr)
+            Logger::Fatal("Error::FREETYPE: FT_Library was initialized but is already initialized.");
+        
+        if (FT_Init_FreeType(&ft))
+            return true;
+        return false;
+    }
+
+    void UnloadFont(int font_index) {
+
+        auto iter = fonts.begin();
+        while (iter != fonts.end())
+        {
+            if (iter->index == font_index){
+                FT_Done_Face(iter->face);
+                iter = fonts.erase(iter);
+            } else ++iter;
+        }
+    }
+}
+
+namespace JGL {
+
+    bool InitTextEngine() {
+        return Detail::InitTextEngine();
+    }
+
+    Font::Font(const std::filesystem::path& path) {
+        if (Detail::ft == nullptr)
+            throw std::runtime_error("Error::FREETYPE: FT_Library was not initialized before attempting to load a font!");
+
+        Font font;
+        if (FT_New_Face(Detail::ft, path.string().c_str(), 0, &face)) {
+            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
+            throw std::runtime_error("Error::FREETYPE: Failed to load font!");
+            //return -1;
+        }
+        unsigned int newIndex = 0;
+        for (const auto& f : Detail::fonts)
+            if (f.index >= newIndex)
+                newIndex = f.index + 1;
+
+        index = newIndex;
+        Detail::fonts.push_back(font);
+        std::cout << "Loaded font from " << path << " with index " << newIndex << std::endl;
+        //return newIndex;
+    }
+
+    Font::~Font() {
+        //Detail::UnloadFont(this->index);
+    }
+
+
+    std::vector<Font> Font::GetLoadedFonts() {
+        return Detail::fonts;
+    }
+
+
+    Font Font::LoadTTF(const std::filesystem::path& path)
+    {
+        return Font(path);
+    }
+
+    Vector2 Font::MeasureString(const std::string &text, unsigned int ptSize) {
+        Vector2 extents = Vector2(0,0);
+        bool font_of_size_in_cache = false;
+
+        for(const auto& f : fontCache.getFonts()) {
+            if (f->getFontSize() == ptSize) {
+                font_of_size_in_cache = true;
+                break;
+            }
+        }
+
+        if (font_of_size_in_cache) {
+            CachedFont* font;
+
+            for (auto* f: fontCache.getFonts())
+                if (f->getFontSize() == ptSize)
+                    font = f;
+
+            for (const char& c : text)
+                extents.x += font->getGlyph(c)->advanceX;
+
+            extents.y = ptSize;
+            return extents;
+        }
+
+        jlog::Warning("Measuring a font size that is not cached, This is *super* slow.");
+        FT_Set_Pixel_Sizes(this->face, ptSize, ptSize);
+
+        for (const char& c : text) {
+            FT_GlyphSlot slot = face->glyph;
+            auto glyph_index = FT_Get_Char_Index(this->face, c);
+
+            auto error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
+
+            if (error)
+                continue;
+
+
+            Vector2 advance = {static_cast<float>(slot->advance.x >> 6),
+                               static_cast<float>(slot->advance.y >> 6)};
+
+
+            extents += advance;
+
+            // Gives smaller results than we'd want.
+            if (extents.y < slot->metrics.height / 64)
+                extents.y = slot->metrics.height / 64;
+
+            // Just fucking hardcode it, we know the glyph height is roughly always the ptSize anyway.
+            if (extents.y < ptSize)
+                extents.y = ptSize;
+        }
+
+        return extents;
+    }
+
+
+}

src/types/FontCache.cpp

@@ -0,0 +1,112 @@
+#include <JGL/types/FontCache.h>
+
+using namespace JGL;
+
+char CachedGlyph::getCharacter() const {
+    return character;
+}
+
+std::array<GLfloat, 12> CachedGlyph::getTexCoords() const {
+    return texcoords;
+}
+
+CachedGlyph::CachedGlyph(char c, std::array<GLfloat, 12> texcoords, float x2offset, float y2offset, float w, float h, float advanceX, float advanceY) {
+    character = c;
+    this->x2offset = x2offset;
+    this->y2offset = y2offset;
+    this->w = w;
+    this->h = h;
+    this->advanceX = advanceX;
+    this->advanceY = advanceY;
+    this->texcoords = texcoords;
+}
+
+void JGL::CachedFont::appendGlyph(JGL::CachedGlyph* glyph) {
+    glyphs.emplace(glyph->getCharacter(), glyph);
+}
+
+unsigned int JGL::CachedFont::getFontSize() const {
+    return font_size;
+}
+
+unsigned int JGL::CachedFont::getFontIndex() const {
+    return font_index;
+}
+
+CachedGlyph* JGL::CachedFont::getGlyph(char c) {
+    auto it = glyphs.find(c);
+    if (it != glyphs.end())
+        return it->second;
+    return nullptr;
+}
+
+CachedFont::CachedFont(GLuint texture_id, GLsizei texture_width, GLsizei texture_height, unsigned int font_size, unsigned int font_index) {
+    this->texture = texture_id;
+    this->texture_width = texture_width;
+    this->texture_height = texture_height;
+    this->font_size = font_size;
+    this->font_index = font_index;
+}
+
+std::unordered_map<char, CachedGlyph*> CachedFont::getGlyphs() {
+    return glyphs;
+}
+
+const GLuint* CachedFont::getTextureHandle() {
+    return &texture;
+}
+
+GLsizei CachedFont::getTextureWidth() const {
+    return texture_width;
+}
+
+GLsizei CachedFont::getTextureHeight() const {
+    return texture_height;
+}
+
+void CachedFont::Erase() {
+    if (texture != 0)
+        glDeleteTextures(1, &texture);
+}
+
+CachedFont::~CachedFont() {
+    Erase();
+}
+
+void FontCache::appendFont(CachedFont* font) {
+    cachedFonts.push_back(font);
+}
+
+void FontCache::newFont(GLuint texture_id, GLsizei texture_width, GLsizei texture_height, unsigned int font_size, unsigned int font_index) {
+    auto* font = new CachedFont(texture_id, texture_width, texture_height, font_size, font_index);
+    cachedFonts.push_back(font);
+}
+
+void FontCache::eraseFont(CachedFont* font) {
+    for (int i = 0; i < cachedFonts.size(); i++) {
+        if (cachedFonts[i] == font) {
+            delete cachedFonts[i];
+            cachedFonts.erase(cachedFonts.begin() + i);
+        }
+    }
+}
+
+void FontCache::purgeCache() {
+    //Remove every font from the cache.
+    for (const auto& font : cachedFonts)
+        eraseFont(font);
+}
+
+std::vector<CachedFont*> FontCache::getFonts() {
+    return cachedFonts;
+}
+
+CachedFont* FontCache::getFont(unsigned int font_size, unsigned int font_index) {
+    if (cachedFonts.empty())
+        return nullptr;
+
+    for (auto* f : cachedFonts)
+        if (f->getFontIndex() == font_index && f->getFontSize() == font_size)
+            return f;
+    return nullptr;
+}

src/types/Light.cpp

@@ -0,0 +1,64 @@
+#include <JGL/types/Light.h>
+
+JGL::PointLight::PointLight(const Vector3& position, const Color4& ambient, const Color4& diffuse, const Color4& specular, float constant_attenuation, float linear_attenuation, float quadratic_attenuation) {
+    this->position = Vector4(position, 1.0f);
+    this->ambient = ambient;
+    this->diffuse = diffuse;
+    this->specular = specular;
+    this->constant_attenuation = constant_attenuation;
+    this->linear_attenuation = linear_attenuation;
+    this->quadratic_attenuation = quadratic_attenuation;
+}
+
+float JGL::PointLight::GetAttenuationAtPosition(const Vector3& pos) const {
+    Vector3 light_pos = {position.x, position.y, position.z};
+    Vector3 vector_to_position = pos - light_pos;
+    float distance = vector_to_position.Length();
+
+    return 1.0f / (GetConstantAttenuation() + GetLinearAttenuation() * distance + GetQuadraticAttenuation() * distance * distance);
+}
+
+JGL::SpotLight::SpotLight(const Vector3& position, const Matrix3x3& ro_mat, float cone_size_degrees, float exponent, const Color4& ambient, const Color4& diffuse, const Color4& specular,
+                          float constant_attenuation, float linear_attenuation, float quadratic_attenuation) {
+    this->position = Vector4(position, 1);
+    //TODO RotationMatrix to "Normalized direction vector."
+    orientation = ro_mat;
+    this->cut = cone_size_degrees;
+    this->exponent = exponent;
+    this->ambient = ambient;
+    this->diffuse = diffuse;
+    this->specular = specular;
+    this->constant_attenuation = constant_attenuation;
+    this->linear_attenuation = linear_attenuation;
+    this->quadratic_attenuation = quadratic_attenuation;
+}
+
+Vector3 JGL::LightBase::GetPosition() const {
+    return {position.x, position.y, position.z};
+}
+
+Color4 JGL::LightBase::GetAmbient() const {
+    return ambient;
+}
+
+Color4 JGL::LightBase::GetDiffuse() const {
+    return diffuse;
+}
+
+Color4 JGL::LightBase::GetSpecular() const {
+    return specular;
+}
+
+float JGL::LightBase::GetConstantAttenuation() const {
+    return constant_attenuation;
+}
+
+float JGL::LightBase::GetLinearAttenuation() const {
+    return linear_attenuation;
+}
+
+float JGL::LightBase::GetQuadraticAttenuation() const {
+    return quadratic_attenuation;
+}
+
+

src/types/RenderTarget.cpp

@@ -0,0 +1,388 @@
+#include <JGL/types/RenderTarget.h>
+#include <JGL/types/Texture.h>
+#include <JGL/logger/logger.h>
+#include <stdexcept>
+
+const JGL::Texture* JGL::RenderTarget::GetJGLTexture() const {
+    return texture;
+}
+
+GLuint JGL::RenderTarget::GetGLTextureHandle() const {
+    return texture->GetGLTextureHandle();
+}
+
+GLuint JGL::RenderTarget::GetGLFramebufferObjectHandle() const {
+    return framebuffer_object;
+}
+
+GLuint JGL::RenderTarget::GetGLDepthBufferHandle() const {
+    return depth_buffer;
+}
+
+GLuint JGL::RenderTarget::GetActiveGLFramebufferHandle() {
+    GLuint fbo;
+    glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &fbo);
+    return fbo;
+}
+
+void JGL::RenderTarget::SetActiveGLRenderTarget(const RenderTarget& render_target) {
+    glBindFramebuffer(GL_FRAMEBUFFER, render_target.MSAAEnabled() ? render_target.msaa_framebuffer_object : render_target.GetGLFramebufferObjectHandle());
+    glViewport(0,0, render_target.GetDimensions().x, render_target.GetDimensions().y);
+}
+
+Vector2 JGL::RenderTarget::GetDimensions() const {
+    return size;
+}
+
+void JGL::RenderTarget::Erase() {
+    if (GetActiveGLFramebufferHandle() == framebuffer_object)
+        Logger::Warning("Deleting the framebuffer that's currently in use?");
+
+    if (using_depth)
+        glDeleteRenderbuffers(1, &depth_buffer);
+
+    glDeleteFramebuffers(1, &framebuffer_object);
+
+    if (MSAAEnabled())
+        SetMSAAEnabled(MSAA_SAMPLE_RATE::MSAA_NONE);
+}
+
+Color4 JGL::RenderTarget::GetClearColor() const {
+    return clear_color;
+}
+
+/// Idk why you'd ever want to clear it out if you're rendering onto a texture you passed in :shrug:.
+JGL::RenderTarget::RenderTarget(const JGL::Texture* texture, const Color4& clear_color) {
+    if (texture->GetDimensions().x < 1 || texture->GetDimensions().y < 1)
+        Logger::Fatal("Creating a render target where the color attachment is empty?");
+
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+    GLint viewport[4] = {0, 0, 0, 0};
+    glGetIntegerv(GL_VIEWPORT, viewport);
+
+    glGenFramebuffers(1, &framebuffer_object);
+    glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_object);
+    glViewport(0,0, size.x, size.y);
+    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->GetGLTextureHandle(), 0);
+
+    if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
+        throw std::runtime_error("A new framebuffer could not be allocated.");
+
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
+    this->clear_color = clear_color;
+    this->size = texture->GetDimensions();
+    this->texture = texture;
+    texture_created_by_us = false;
+}
+
+JGL::RenderTarget::RenderTarget(const Vector2& size, const Color4& clear_color, bool use_depth, MSAA_SAMPLE_RATE sample_rate) {
+    if (size.x < 1 || size.y < 1)
+        Logger::Fatal("Creating a render target where the color attachment is empty?");
+
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+    GLint viewport[4] = {0, 0, 0, 0};
+    glGetIntegerv(GL_VIEWPORT, viewport);
+    //Textures behave strangely if they're not square aaaaaaaaaaaaa.
+    unsigned int biggest;
+    if (size.x >= size.y)
+        biggest = size.x;
+    else biggest = size.y;
+
+    texture = new Texture(Vector2(biggest, biggest));
+    glGenFramebuffers(1, &framebuffer_object);
+    glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_object);
+    glViewport(0,0, size.x, size.y);
+    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->GetGLTextureHandle(), 0);
+
+    if (use_depth) {
+        GLuint depthBuffer;
+        glGenRenderbuffers(1, &depthBuffer);
+        glBindRenderbuffer(GL_RENDERBUFFER, depthBuffer);
+        glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, biggest, biggest);
+        glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBuffer);
+        glClear(GL_DEPTH_BUFFER_BIT);
+        using_depth = true;
+    }
+
+    GLfloat old_clear_color[4];
+    glGetFloatv(GL_COLOR_CLEAR_VALUE, old_clear_color);
+    glClearColor(clear_color.RedChannelNormalized(), clear_color.GreenChannelNormalized(), clear_color.BlueChannelNormalized(), clear_color.AlphaChannelNormalized());
+    glClear(GL_COLOR_BUFFER_BIT);
+    glClearColor(old_clear_color[0], old_clear_color[1], old_clear_color[2], old_clear_color[3]);
+
+    if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
+        throw std::runtime_error("A new framebuffer could not be allocated.");
+
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
+    this->clear_color = clear_color;
+    this->size = size;
+    texture_created_by_us = true;
+
+    if (sample_rate != MSAA_SAMPLE_RATE::MSAA_NONE)
+        SetMSAAEnabled(sample_rate);
+}
+
+std::vector<GLfloat> JGL::RenderTarget::GetData() const {
+    std::vector<GLfloat> data(GetDimensions().x * GetDimensions().y * 4);
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+
+    glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_object);
+    glReadPixels(0, 0, GetDimensions().x, GetDimensions().y, GL_RGBA, GL_FLOAT, data.data());
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    return data;
+
+}
+
+void JGL::RenderTarget::Resize(const Vector2& new_size) {
+    if (!texture_created_by_us)
+        Logger::Fatal("Resizing a texture that already existed?");
+
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+    GLfloat old_clear_color[4];
+    GLint old_viewport[4] = {0, 0, 0, 0};
+    glGetIntegerv(GL_VIEWPORT, old_viewport);
+    glGetFloatv(GL_COLOR_CLEAR_VALUE, old_clear_color);
+
+    /* If what was previously not part of the renderable area is big enough to
+     * just set the new size without reading data back */
+    if (new_size.x <= texture->GetDimensions().x && new_size.y <= texture->GetDimensions().y) {
+        size = new_size;
+
+        // Clear.
+        glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_object);
+        auto cc = GetClearColor();
+        glClearColor(cc.RedChannelNormalized(), cc.GreenChannelNormalized(), cc.BlueChannelNormalized(), cc.AlphaChannelNormalized());
+        glViewport(0,0, size.x, size.y);
+        glClear(GL_COLOR_BUFFER_BIT);
+        if (using_depth)
+            glClear(GL_DEPTH_BUFFER_BIT);
+
+        glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+        glClearColor(old_clear_color[0], old_clear_color[1], old_clear_color[2], old_clear_color[3]);
+        glViewport(old_viewport[0], old_viewport[1], old_viewport[2], old_viewport[3]);
+        return;
+    }
+
+    //If we have to remake the texture.
+    glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_object);
+
+    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
+    // Erase it.
+    delete texture;
+
+    unsigned int biggest;
+    if (new_size.x >= new_size.y)
+        biggest = new_size.x;
+    else
+        biggest = new_size.y;
+
+    auto cc = GetClearColor();
+    glClearColor(cc.RedChannelNormalized(), cc.GreenChannelNormalized(), cc.BlueChannelNormalized(), cc.AlphaChannelNormalized());
+    glViewport(0,0, size.x, size.y);
+
+    texture = new Texture(Vector2((float) biggest, (float) biggest));
+    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->GetGLTextureHandle(), 0);
+
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    glClearColor(old_clear_color[0], old_clear_color[1], old_clear_color[2], old_clear_color[3]);
+    glViewport(old_viewport[0], old_viewport[1], old_viewport[2], old_viewport[3]);
+    size = new_size;
+
+    //Disable & Re-enable MSAA so the msaa buffer is remade with the correct dimensions.
+    if (MSAAEnabled()) {
+        MSAA_SAMPLE_RATE current_sample_rate = msaa_sample_rate;
+        SetMSAAEnabled(MSAA_SAMPLE_RATE::MSAA_NONE);
+        SetMSAAEnabled(current_sample_rate);
+    }
+}
+
+JGL::RenderTarget::~RenderTarget() {
+    Erase();
+    if (texture_created_by_us)
+        delete texture;
+}
+
+bool JGL::RenderTarget::TextureCreatedByRenderTarget() const {
+    return texture_created_by_us;
+}
+
+JGL::MSAA_SAMPLE_RATE JGL::RenderTarget::GetMSAASampleRate() const {
+    return msaa_sample_rate;
+}
+
+bool JGL::RenderTarget::MSAAEnabled() const {
+    return msaa_sample_rate != MSAA_SAMPLE_RATE::MSAA_NONE;
+}
+
+void JGL::RenderTarget::SetMSAAEnabled(JGL::MSAA_SAMPLE_RATE sample_rate) {
+    // If we'd be setting the same sample_rate we already have.
+    if (sample_rate == msaa_sample_rate)
+        return;
+
+    // If we'd be rendering onto a texture and not a plain render target we don't want this.
+    if (!TextureCreatedByRenderTarget())
+        return;
+
+    // Remove it if they request no msaa or if what they requested is different than what they already have.
+    if (sample_rate == MSAA_SAMPLE_RATE::MSAA_NONE || msaa_sample_rate != MSAA_SAMPLE_RATE::MSAA_NONE) {
+        if(using_depth)
+            glDeleteRenderbuffers(1, &msaa_depth_buffer);
+        glDeleteRenderbuffers(1, &msaa_render_buffer);
+        glDeleteFramebuffers(1, &msaa_framebuffer_object);
+
+        msaa_framebuffer_object = 0;
+        msaa_depth_buffer = 0;
+        msaa_render_buffer = 0;
+        msaa_sample_rate = MSAA_SAMPLE_RATE::MSAA_NONE;
+
+        // Only return here if they specifically requested no MSAA. else continue to change mode.
+        if (sample_rate == MSAA_SAMPLE_RATE::MSAA_NONE)
+            return;
+    }
+
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+    glGenFramebuffers(1, &msaa_framebuffer_object);
+    glBindFramebuffer(GL_FRAMEBUFFER, msaa_framebuffer_object);
+
+    GLint current_renderbuffer = 0;
+    glGetIntegerv(GL_RENDERBUFFER_BINDING, &current_renderbuffer);
+    glGenRenderbuffers(1, &msaa_render_buffer);
+    glBindRenderbuffer(GL_RENDERBUFFER, msaa_render_buffer);
+    glRenderbufferStorageMultisample(GL_RENDERBUFFER, JGL::to_int(sample_rate), GL_RGBA, size.x, size.y);
+    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, msaa_render_buffer);
+
+    if (using_depth) {
+        glGenRenderbuffers(1, &msaa_depth_buffer);
+        glBindRenderbuffer(GL_RENDERBUFFER, msaa_depth_buffer);
+        glRenderbufferStorageMultisample(GL_RENDERBUFFER, JGL::to_int(sample_rate), GL_DEPTH_COMPONENT, size.x, size.y);
+        glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, msaa_depth_buffer);
+    }
+
+    bool failure = false;
+    if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
+        failure = true,
+        Logger::Fatal("A new MSAA " + std::to_string(to_int(sample_rate)) + "x framebuffer couldn't be allocated.");
+
+    glBindRenderbuffer(GL_RENDERBUFFER, current_renderbuffer);
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    msaa_sample_rate = sample_rate;
+
+    if (failure)
+        SetMSAAEnabled(MSAA_SAMPLE_RATE::MSAA_NONE);
+}
+
+void JGL::RenderTarget::Blit() const {
+    if (MSAAEnabled() && TextureCreatedByRenderTarget()) {
+
+        // Save the GL state.
+        GLuint current_fbo = GetActiveGLFramebufferHandle();
+        GLint current_draw_fbo = 0;
+        GLint current_read_fbo = 0;
+        glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &current_read_fbo);
+        glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_draw_fbo);
+
+        // Draw the contents of one into the other.
+        glBindFramebuffer(GL_READ_FRAMEBUFFER, msaa_framebuffer_object);
+        glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer_object);
+        glBlitFramebuffer(0, 0, size.x, size.y, 0, 0, size.x, size.y, GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+        // Put the GL state back.
+        glBindFramebuffer(GL_READ_FRAMEBUFFER, current_read_fbo);
+        glBindFramebuffer(GL_DRAW_FRAMEBUFFER, current_draw_fbo);
+        glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    }
+
+    // Fixes using render targets on a texture that has mipmaps.
+    if (GetJGLTexture()->GetFilteringMode() == TextureFilteringMode::MIPMAP_NEAREST
+        || GetJGLTexture()->GetFilteringMode() == TextureFilteringMode::MIPMAP_BILINEAR ||
+        GetJGLTexture()->GetFilteringMode() == TextureFilteringMode::MIPMAP_TRILINEAR) {
+        GLint current_texture = 0;
+        glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
+
+        glBindTexture(GL_TEXTURE_2D, GetJGLTexture()->GetGLTextureHandle());
+        glGenerateMipmap(GL_TEXTURE_2D);
+
+        glBindTexture(GL_TEXTURE_2D, current_texture);
+    }
+}
+
+void JGL::RenderTarget::Blit(const JGL::RenderTarget& source, JGL::RenderTarget* destination) {
+    //TODO allow blitting onto an FBO that is bigger but not smaller.
+    if (source.size != destination->size)
+        Logger::Warning("Blitting a render target but they're not the same size?");
+
+    // Save the GL state.
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+    GLint current_draw_fbo = 0;
+    GLint current_read_fbo = 0;
+    glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &current_read_fbo);
+    glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_draw_fbo);
+
+    // Draw the contents of one into the other.
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, source.framebuffer_object);
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, destination->framebuffer_object);
+    glBlitFramebuffer(0, 0, source.size.x, source.size.y, 0, 0, source.size.x, source.size.y, GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+    // Put the GL state back.
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, current_read_fbo);
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, current_draw_fbo);
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+}
+
+// To avoid repeatedly allocating and deallocating.
+JGL::RenderTarget* pixel = nullptr;
+void JGL::RenderTarget::Blit(const Color4& color, const Vector2& position, JGL::RenderTarget* destination) {
+    if (position.x > destination->size.x || position.y > destination->size.y)
+        Logger::Warning("Blitting outside of the renderable area of the destination.");
+
+    if (pixel == nullptr)
+        pixel = new RenderTarget({1,1});
+
+    GLint current_draw_fbo = 0;
+    GLint current_read_fbo = 0;
+    GLint viewport[4];
+    GLfloat clear_color[4];
+    GLuint current_fbo = GetActiveGLFramebufferHandle();
+    glGetIntegerv(GL_VIEWPORT, viewport);
+    glGetFloatv(GL_COLOR_CLEAR_VALUE, clear_color);
+    glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &current_read_fbo);
+    glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_draw_fbo);
+
+    SetActiveGLRenderTarget(*pixel);
+    glClearColor(color.RedChannelNormalized(), color.GreenChannelNormalized(), color.BlueChannelNormalized(), color.AlphaChannelNormalized());
+    glClear(GL_COLOR_BUFFER_BIT);
+
+    // Invert so it's relative to the top left corner.
+    int target_y = destination->size.y - position.y - 1;
+
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, pixel->framebuffer_object);
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, destination->framebuffer_object);
+    glBlitFramebuffer(0, 0, 1, 1, position.x, target_y, position.x + 1, target_y + 1, GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, current_read_fbo);
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, current_draw_fbo);
+    glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+    glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
+    glClearColor(clear_color[0], clear_color[1], clear_color[2], clear_color[3]);
+}
+
+JGL::RenderTarget::RenderTarget(const JGL::RenderTarget& rhs) {
+    auto* this_render_target = new RenderTarget(rhs.size, rhs.clear_color, rhs.using_depth, rhs.msaa_sample_rate);
+    RenderTarget::Blit(rhs, this_render_target);
+
+    this->clear_color = this_render_target->clear_color;
+    this->size = this_render_target->size;
+    this->using_depth = this_render_target->using_depth;
+    this->texture_created_by_us = true;
+    this->texture = this_render_target->texture;
+    this->framebuffer_object = this_render_target->framebuffer_object;
+    this->depth_buffer = this_render_target->depth_buffer;
+    this->msaa_sample_rate = this_render_target->msaa_sample_rate;
+    this->msaa_framebuffer_object = this_render_target->msaa_framebuffer_object;
+    this->msaa_depth_buffer = this_render_target->msaa_depth_buffer;
+    this->msaa_render_buffer = this_render_target->msaa_render_buffer;
+
+    operator delete(this_render_target);
+}

src/types/Skeleton.cpp

@@ -0,0 +1,186 @@
+#include <JGL/types/Skeleton.h>
+#include <JGL/logger/logger.h>
+#include <cstring>
+
+using namespace JGL;
+
+std::array<int, 4> JGL::SkeletalVertexAttribute::GetAffectingBoneIDs() const {
+    return bone_ids;
+}
+
+std::array<float, 4> JGL::SkeletalVertexAttribute::GetAffectingBoneWeights() const {
+    return bone_weights;
+}
+
+JGL::SkeletalVertexAttribute::SkeletalVertexAttribute(const std::vector<int>& ids, const std::vector<float>& weights) {
+
+    if (bone_ids.size() > 4 || bone_weights.size() > 4)
+        Logger::Fatal("Initialization of a skeletal vertex that is effected by more than 4 bones.");
+
+    memcpy(this->bone_ids.data(), bone_ids.data(), sizeof(int) * 4);
+    memcpy(this->bone_weights.data(), bone_weights.data(), sizeof(float) * 4);
+}
+
+bool JGL::Bone::IsRootBone() const {
+    if (parent_id == -1)
+        return true;
+    return false;
+}
+
+int JGL::Bone::GetID() const {
+    return id;
+}
+
+std::string JGL::Bone::GetName() const {
+    return name;
+}
+
+Matrix4x4 JGL::Bone::GetInverseBindMatrix() const {
+    return inverse_bind_matrix;
+}
+
+Matrix4x4 JGL::Bone::GetOffsetMatrix() const {
+    return offset_matrix;
+}
+
+Matrix4x4 JGL::Bone::GetFinalTransform() const {
+    return final_transform;
+}
+
+std::vector<int> JGL::Bone::GetChildren() const {
+    return children;
+}
+
+void Bone::SetParent(int parent_identifier) {
+    parent_id = parent_identifier;
+}
+
+void Bone::AppendChild(int new_child) {
+    children.push_back(new_child);
+}
+
+void Bone::SetID(int numeric_id) {
+    id = numeric_id;
+}
+
+void Bone::SetName(const std::string& string_id) {
+    name = string_id;
+}
+
+void Bone::SetInverseBindMatrix(const Matrix4x4& inverse_bind) {
+    inverse_bind_matrix = inverse_bind;
+}
+
+void Bone::SetOffsetMatrix(const Matrix4x4& offset) {
+    offset_matrix = offset;
+}
+
+void Bone::SetFinalTransformMatrix(const Matrix4x4& final) {
+    final_transform = final;
+}
+
+int Bone::GetParentID() const {
+    return parent_id;
+}
+
+Bone::Bone(int numeric_id, const std::string& string_id, int parent_bone, const std::vector<int>& children_ids, const Matrix4x4& inverse_bind, const Matrix4x4& offset, const Matrix4x4& final) {
+    id = numeric_id;
+    name = string_id;
+    parent_id = parent_bone;
+    inverse_bind_matrix = inverse_bind;
+    offset_matrix = offset;
+    final_transform = final;
+    children = children_ids;
+}
+
+Bone* Skeleton::GetRootBone() {
+    return &root;
+}
+
+Bone* Skeleton::FindBone(int id) {
+    if (root.GetID() == id)
+        return &root;
+
+    for (auto& bone : bones)
+        if (bone.GetID() == id)
+            return &bone;
+    // If we couldn't find it.
+    return nullptr;
+}
+
+Bone* Skeleton::FindBone(const std::string& string_id) {
+    if (root.GetName() == string_id)
+        return &root;
+
+    for (auto& bone : bones)
+        if (bone.GetName() == string_id)
+            return &bone;
+    return nullptr;
+}
+
+void Skeleton::AppendBone(const Bone& new_bone) {
+    bones.push_back(new_bone);
+}
+
+Skeleton::Skeleton(const Bone& root_bone, const std::vector<Bone>& children) {
+    root = root_bone;
+     bones = children;
+}
+
+float KeyFrame::GetTimeStamp() const {
+    return time_stamp;
+}
+
+Skeleton KeyFrame::GetSkeleton() const {
+    return pose;
+}
+
+KeyFrame::KeyFrame(const Skeleton& pose, float time_stamp) {
+    this->pose = pose;
+    this->time_stamp = time_stamp;
+}
+
+Animation::Animation(int id, float duration, const std::vector<KeyFrame>& key_frames, const std::vector<SkeletalVertexAttribute>& skeletal_vertex_attributes,
+                     const std::string& name) {
+    length = duration;
+    this->key_frames = key_frames;
+    this->id = id;
+    this->name = name;
+    this->vertex_attributes = skeletal_vertex_attributes;
+}
+
+float Animation::GetDuratrion() const {
+    return length;
+}
+
+std::vector<KeyFrame> Animation::GetKeyFrames() const {
+    return key_frames;
+}
+
+void Animation::AppendKeyFrame(const KeyFrame& new_key) {
+    key_frames.push_back(new_key);
+}
+
+void Animation::SetDuration(float duration) {
+    length = duration;
+}
+
+int Animation::GetID() const {
+    return id;
+}
+
+std::string Animation::GetName() const {
+    return name;
+}
+
+void Animation::SetID(int identifier) {
+    id = identifier;
+}
+
+void Animation::SetName(const std::string& name_id) {
+    name = name_id;
+}
+
+std::vector<SkeletalVertexAttribute> Animation::GetSkeletalVertexAttributes() const {
+    return vertex_attributes;
+}

src/types/Texture.cpp

@@ -0,0 +1,192 @@
+#include <JGL/types/Texture.h>
+#include <iostream>
+#include <JGL/types/RenderTarget.h>
+
+using namespace ReImage;
+
+namespace JGL
+{
+    Texture::Texture(const std::string& file, TextureFilteringMode filtering_mode, TextureWrappingMode wrapping_mode, const TextureFlag& flags)
+    {
+        auto* t = new ReImage::Image(file, flags);
+        GLuint previous_texture;
+        glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint*) &previous_texture);
+
+        load(t, {(float) t->getWidth(), (float) t->getHeight()}, t->getTextureFormat(), filtering_mode, wrapping_mode);
+        texture_flags = flags;
+
+        delete t;
+    }
+
+    Texture::Texture(const Vector2& size) {
+        GLuint previous_texture;
+        glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint*) &previous_texture);
+
+        glGenTextures(1, &texture_handle);
+        glBindTexture(GL_TEXTURE_2D, texture_handle);
+        //NEAREST
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        //Clamp
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (int) size.x, (int) size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
+
+        texture_format = TextureFormat::RGBA;
+        texture_size = size;
+        texture_filtering_mode = TextureFilteringMode::NEAREST;
+        texture_wrapping_mode = TextureWrappingMode::CLAMP_TO_EDGE;
+        // Because in vram it'll be right side up.
+        texture_flags = TextureFlag::INVERT_Y;
+
+        glBindTexture(GL_TEXTURE_2D, previous_texture);
+
+    }
+
+    void Texture::load(Image* software_texture, const Vector2& size, const TextureFormat& format,
+                           TextureFilteringMode filtering_mode, TextureWrappingMode wrapping_mode) {
+
+        GLuint previous_texture;
+        glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint*) &previous_texture);
+
+            glGenTextures(1, &texture_handle);
+            glBindTexture(GL_TEXTURE_2D, texture_handle);
+
+            if (format == TextureFormat::RGBA)
+                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (int) size.x, (int) size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+                             software_texture->pixel_data.data());
+
+            else if (format == TextureFormat::RGB)
+                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, (int) size.x, (int) size.y, 0, GL_RGB, GL_UNSIGNED_BYTE,
+                             software_texture->pixel_data.data());
+
+            if (wrapping_mode == TextureWrappingMode::CLAMP_TO_EDGE)
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE),
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+            else if (wrapping_mode == TextureWrappingMode::REPEAT)
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT),
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+            else if (wrapping_mode == TextureWrappingMode::MIRRORED_REPEAT)
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT),
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
+
+            else if (wrapping_mode == TextureWrappingMode::CLAMP_TO_BORDER)
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER),
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
+            if (filtering_mode == TextureFilteringMode::NEAREST)
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST),
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+            else if (filtering_mode == TextureFilteringMode::BILINEAR)
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR),
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+            else if (filtering_mode == TextureFilteringMode::MIPMAP_NEAREST ||
+                     filtering_mode == TextureFilteringMode::MIPMAP_BILINEAR ||
+                     filtering_mode == TextureFilteringMode::MIPMAP_TRILINEAR) {
+
+                glGenerateMipmap(GL_TEXTURE_2D);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
+
+                if (filtering_mode == TextureFilteringMode::MIPMAP_NEAREST)
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST),
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+                else if (filtering_mode == TextureFilteringMode::MIPMAP_BILINEAR)
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST),
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+                else if (filtering_mode == TextureFilteringMode::MIPMAP_TRILINEAR)
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR),
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+            }
+            texture_size = size;
+            texture_format = format;
+            texture_filtering_mode = filtering_mode;
+            glBindTexture(GL_TEXTURE_2D, previous_texture);
+    }
+
+    std::vector<Color4> JGL::Texture::GetPixelData() const {
+        GLint current_texture;
+        glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
+
+        std::vector<Color4> result((size_t) (texture_size.x * texture_size.y));
+        glBindTexture(GL_TEXTURE_2D, texture_handle);
+
+        if (texture_format == TextureFormat::RGBA) {
+            glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, result.data());
+            glBindTexture(GL_TEXTURE_2D, current_texture);
+            return result;
+        }
+
+        //if RGB
+        std::vector<Color3> color3((size_t) (texture_size.x * texture_size.y));
+        glGetTexImage(GL_TEXTURE_2D, 0, GL_RGB, GL_UNSIGNED_BYTE, color3.data());
+        for (const auto &c: color3)
+            result.emplace_back(c);
+
+        glBindTexture(GL_TEXTURE_2D, current_texture);
+        return result;
+    }
+
+    void Texture::Erase() {
+        if (texture_handle != 0)
+            glDeleteTextures(1, &texture_handle);
+        texture_handle = 0;
+    }
+
+    GLuint Texture::GetGLTextureHandle() const {
+        return texture_handle;
+    }
+
+    Vector2 Texture::GetDimensions() const {
+        return texture_size;
+    }
+
+    TextureFlag Texture::GetFlags() const {
+        return texture_flags;
+    }
+
+    TextureFormat Texture::GetFormat() const {
+        return texture_format;
+    }
+
+    TextureFilteringMode Texture::GetFilteringMode() const {
+        return texture_filtering_mode;
+    }
+
+    TextureWrappingMode Texture::GetWrappingMode() const {
+        return texture_wrapping_mode;
+    }
+
+    Texture::Texture(Image* software_texture, const Vector2& size, const TextureFormat& format,
+                     TextureFilteringMode filtering_mode, TextureWrappingMode wrapping_mode) {
+        load(software_texture, size, format, filtering_mode, wrapping_mode);
+    }
+
+    Texture::~Texture() {
+        Erase();
+    }
+
+    Texture::Texture(const Texture& rhs) {
+        auto* this_texture = new Texture(rhs.GetDimensions());
+        auto this_render_target = RenderTarget(this);
+        auto rhs_render_target = RenderTarget(&rhs);
+
+        RenderTarget::Blit(rhs_render_target, &this_render_target);
+
+        this->texture_handle = this_texture->texture_handle;
+        this->texture_size = this_texture->texture_size;
+        this->texture_flags = this_texture->texture_flags;
+        this->texture_format = this_texture->texture_format;
+        this->texture_filtering_mode = this_texture->texture_filtering_mode;
+        this->texture_wrapping_mode = this_texture->texture_wrapping_mode;
+
+        // Free the memory of "this_texture" without calling the destructor.
+        // In 99% of cases you wouldn't want this. But in this scenario we do.
+        operator delete(this_texture);
+    }
+}

src/types/VRamList.cpp

@@ -0,0 +1,297 @@
+#include <JGL/types/VRamList.h>
+#include <JGL/logger/logger.h>
+#include <cstring>
+
+void JGL::VRamList::load(const GLfloat* data, const long& size) {
+    while (spin_lock) {}
+    spin_lock = true;
+
+    GLint current_array_buffer = 0;
+    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &current_array_buffer);
+    glGenBuffers(1, &list_handle);
+    glBindBuffer(GL_ARRAY_BUFFER, list_handle);
+    glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW);
+    glBindBuffer(GL_ARRAY_BUFFER, current_array_buffer);
+    element_array_buffer = false;
+    num_elements = size / sizeof(GLfloat);
+
+    spin_lock = false;
+}
+
+void JGL::VRamList::load(const GLuint* data, const long& size) {
+    while (spin_lock) {}
+    spin_lock = true;
+
+    GLint current_element_array_buffer = 0;
+    glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &current_element_array_buffer);
+    glGenBuffers(1, &list_handle);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, list_handle);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, data, GL_STATIC_DRAW);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, current_element_array_buffer);
+    element_array_buffer = true;
+    num_elements = size / sizeof(GLuint);
+
+    spin_lock = false;
+}
+
+void JGL::VRamList::Erase() {
+    if (list_handle == 0)
+        return;
+
+    while (spin_lock) {}
+    spin_lock = true;
+
+    GLint current_element_array_buffer = 0;
+    glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &current_element_array_buffer);
+    GLint current_array_buffer = 0;
+    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &current_array_buffer);
+
+    if (element_array_buffer && current_element_array_buffer == list_handle)
+        JGL::Logger::Warning("Erasing an element array buffer while it's in use?");
+
+    else if (!element_array_buffer && current_array_buffer == list_handle)
+        JGL::Logger::Warning("Erasing an array buffer while it's in use?");
+
+    glDeleteBuffers(1, &list_handle);
+    list_handle = 0;
+
+    spin_lock = false;
+}
+
+GLuint JGL::VRamList::GetHandle() const {
+    return list_handle;
+}
+
+bool JGL::VRamList::IsFloatArray() const {
+    return !element_array_buffer;
+}
+
+long JGL::VRamList::GetLength() const {
+    return num_elements;
+}
+
+size_t JGL::VRamList::GetDataSize() const {
+    if (element_array_buffer)
+        return sizeof(GLuint) * num_elements;
+    return sizeof(GLfloat) * num_elements;
+}
+
+void JGL::VRamList::SetData(void* data, const long& length) {
+    while (spin_lock) {}
+    spin_lock = true;
+
+    bool should_resize = (this->num_elements != length);
+    if (should_resize) {
+        glDeleteBuffers(1, &list_handle);
+        list_handle = 0;
+        spin_lock = false;
+        element_array_buffer ? load((GLuint*) data, sizeof(GLuint) * length) : load((GLfloat*) data, sizeof(GLfloat) * length);
+        return;
+    }
+
+    // if (!should resize)
+    GLint current_buffer = 0;
+    GLenum buffer_type = GL_ARRAY_BUFFER;
+    GLenum buffer_binding = GL_ARRAY_BUFFER_BINDING;
+    if (element_array_buffer)
+        buffer_type = GL_ELEMENT_ARRAY_BUFFER,
+        buffer_binding = GL_ELEMENT_ARRAY_BUFFER_BINDING;
+
+    glGetIntegerv(buffer_binding, &current_buffer);
+    glBindBuffer(buffer_type, list_handle);
+
+    void* vram = glMapBuffer(buffer_type, GL_WRITE_ONLY);
+    if (!vram)
+        JGL::Logger::Fatal("Mapping in a VBO that doesn't exist?");
+
+    memcpy(vram, data, (element_array_buffer ? sizeof(GLuint) : sizeof(GLfloat)) * length);
+    
+    if (!glUnmapBuffer(buffer_type))
+        JGL::Logger::Fatal("We couldn't unmap the buffer?");
+
+    glBindBuffer(buffer_type, current_buffer);
+
+    spin_lock = false;
+}
+
+void JGL::VRamList::UpdateData(void* data, const long& offset, const long& length) {
+    while (spin_lock) {}
+    spin_lock = true;
+
+    if (offset + length > num_elements) {
+        JGL::Logger::Warning("Using UpdateData to out-of-bounds write the VRamList? I'll resize it for you, But this is slow.");
+        unsigned long oob_delta = (offset + length) - num_elements;
+
+        if (element_array_buffer) {
+            auto list_data = GetDataUI();
+            list_data.resize(list_data.size() + oob_delta);
+            memcpy(list_data.data() + (offset * sizeof(GLuint)), data, length * sizeof(GLuint));
+            spin_lock = false; // This is going unlock and relock really fast, But this code fixes something considered wrong anyway - Redacted.
+            return SetData(list_data.data(), list_data.size());
+        }
+
+        // if (!element_array_buffer)
+        auto list_data = GetDataF();
+        list_data.resize(list_data.size() + oob_delta);
+        memcpy(list_data.data() + (offset * sizeof(GLfloat)), data, length * sizeof(GLfloat));
+        spin_lock = false;
+        return SetData(list_data.data(), list_data.size());
+    }
+
+    GLint current_buffer = 0;
+    GLenum buffer_type = GL_ARRAY_BUFFER;
+    GLenum buffer_binding = GL_ARRAY_BUFFER_BINDING;
+
+    if (element_array_buffer)
+        buffer_type = GL_ELEMENT_ARRAY_BUFFER,
+        buffer_binding = GL_ELEMENT_ARRAY_BUFFER_BINDING;
+
+    glGetIntegerv(buffer_binding, &current_buffer);
+    glBindBuffer(buffer_type, list_handle);
+
+    void* vram = glMapBuffer(buffer_type, GL_WRITE_ONLY);
+    if (!vram)
+        JGL::Logger::Fatal("Mapping in a VBO that doesn't exist?");
+
+    size_t element_size = element_array_buffer ? sizeof(GLuint) : sizeof(GLfloat);
+    memcpy(reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(vram) + (offset * element_size)), data, length * element_size);
+
+    if (!glUnmapBuffer(buffer_type))
+        JGL::Logger::Fatal("We couldn't unmap the buffer?");
+
+    glBindBuffer(buffer_type, current_buffer);
+
+    spin_lock = false;
+}
+
+std::vector<GLfloat> JGL::VRamList::GetDataF() const {
+    while (spin_lock) {}
+
+    if (element_array_buffer)
+        JGL::Logger::Warning("Getting data as GLfloat but the buffer data is GLuint?");
+
+    GLint current_buffer = 0;
+    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &current_buffer);
+    glBindBuffer(GL_ARRAY_BUFFER, list_handle);
+
+    std::vector<GLfloat> data(num_elements);
+    void* vram = glMapBuffer(GL_ARRAY_BUFFER, GL_READ_ONLY);
+    if (vram == nullptr)
+        JGL::Logger::Fatal("Mapping in a VBO that doesn't exist?");
+
+    memcpy(data.data(), vram, num_elements * sizeof(GLfloat));
+
+    glUnmapBuffer(GL_ARRAY_BUFFER);
+    glBindBuffer(GL_ARRAY_BUFFER, current_buffer);
+
+    return data;
+}
+
+std::vector<GLuint> JGL::VRamList::GetDataUI() const {
+    while (spin_lock) {}
+
+    if (!element_array_buffer)
+        JGL::Logger::Warning("Getting data as GLuint but the buffer data is GLfloat?");
+
+    GLint current_buffer = 0;
+    glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &current_buffer);
+
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, list_handle);
+    std::vector<GLuint> data(num_elements);
+
+    void* vram = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_READ_ONLY);
+    if (vram == nullptr)
+        JGL::Logger::Fatal("Mapping in a VBO that doesn't exist?");
+
+    memcpy(data.data(), vram, num_elements * sizeof(GLuint));
+
+    glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, current_buffer);
+
+    return data;
+}
+
+JGL::VRamList::VRamList(const GLfloat* data, const long& length) {
+    load(data, (long) sizeof(GLfloat) * length);
+}
+
+JGL::VRamList::VRamList(const GLuint* data, const long& length) {
+    load(data, (long) sizeof(GLuint) * length);
+}
+
+JGL::VRamList::VRamList(const Vector2* data, const long& length) {
+    load(reinterpret_cast<const GLfloat*>(data), (long) sizeof(Vector2) * length);
+}
+
+JGL::VRamList::VRamList(const Vector3* data, const long& length) {
+    load(reinterpret_cast<const GLfloat*>(data), (long) sizeof(Vector3) * length);
+}
+
+JGL::VRamList::VRamList(const Vector4* data, const long& length) {
+    load(reinterpret_cast<const GLfloat*>(data), (long) sizeof(Vector4) * length);
+}
+
+void JGL::VRamList::SetData(const GLfloat* data, const long& length) {
+    SetData((void*) data, length);
+}
+
+void JGL::VRamList::SetData(const Vector2* data, const long& length) {
+    SetData((void*) data, length * 2);
+}
+
+void JGL::VRamList::SetData(const Vector3* data, const long& length) {
+    SetData((void*) data, length * 3);
+}
+
+void JGL::VRamList::SetData(const Vector4* data, const long& length) {
+    SetData((void*) data, length * 4);
+}
+
+void JGL::VRamList::SetData(const GLuint* data, const long& length) {
+    SetData((void*) data, length);
+}
+
+void JGL::VRamList::SetData(const Vector2i* data, const long& length) {
+    SetData((void*) data, length * 2);
+}
+
+void JGL::VRamList::UpdateData(const GLfloat* data, const long& offset, const long& length) {
+    UpdateData((void*) data, offset, length);
+}
+
+void JGL::VRamList::UpdateData(const Vector2* data, const long& offset, const long& length) {
+    UpdateData((void*) data, offset, length * 2);
+}
+
+void JGL::VRamList::UpdateData(const Vector3* data, const long& offset, const long& length) {
+    UpdateData((void*) data, offset, length * 3);
+}
+
+void JGL::VRamList::UpdateData(const Vector4* data, const long& offset, const long& length) {
+    UpdateData((void*) data, offset, length * 4);
+}
+
+void JGL::VRamList::UpdateData(const GLuint* data, const long& offset, const long& length) {
+    UpdateData((void*) data, offset, length);
+}
+
+void JGL::VRamList::UpdateData(const Vector2i* data, const long& offset, const long& length) {
+    UpdateData((void*) data, offset, length * 2);
+}
+
+JGL::VRamList::~VRamList() {
+    Erase();
+}
+
+JGL::VRamList::VRamList(const JGL::VRamList& rhs) {
+    while (rhs.spin_lock) {}
+
+    if (rhs.element_array_buffer) {
+        auto data_array = rhs.GetDataUI();
+        this->load(data_array.data(), data_array.size());
+        return;
+    }
+
+    auto data_array = rhs.GetDataF();
+    this->load(data_array.data(), data_array.size());
+}

src/types/VertexArray.cpp

@@ -0,0 +1,191 @@
+#include <JGL/types/VertexArray.h>
+
+using namespace JGL;
+
+VRamList VertexArray::GetVertices() const {
+    return vertices;
+}
+
+VRamList VertexArray::GetIndices() const {
+    return indices;
+}
+
+JGL::VRamList VertexArray::GetNormals() const {
+    return normals;
+}
+
+VRamList VertexArray::GetTextureCoordinates() const {
+    return texture_coordinates;
+}
+
+std::vector<Vertex> VertexArray::GetLocalVertices() const {
+    return local_vertices;
+}
+
+std::vector<unsigned int> VertexArray::GetLocalIndices() const {
+    return local_indices;
+}
+
+std::vector<TextureCoordinate> VertexArray::GetLocalTextureCoordinates() const {
+    return local_texture_coordinates;
+}
+
+std::vector<Normal> VertexArray::GetLocalNormals() const {
+    return local_normals;
+}
+
+Sphere VertexArray::GetMESphere(const Vector3& scale, const Vector3& translate_part) const {
+    if (scale == Vector3::One)
+        return { me_sphere.Position + translate_part, me_sphere.Radius };
+
+    float scale_factor = 0;
+    if (scale.x > scale_factor)
+        scale_factor = scale.x;
+    if (scale.y > scale_factor)
+        scale_factor = scale.y;
+    if (scale.z > scale_factor)
+        scale_factor = scale.z;
+
+    return { me_sphere.Position + translate_part, me_sphere.Radius * scale_factor };
+}
+
+Sphere VertexArray::GetMESphere(const Matrix4x4& instance_matrix, bool translate) const {
+    Vector3 scale = instance_matrix.GetScale();
+    Vector3 origin = Vector3::Zero;
+    if (translate)
+        origin = instance_matrix.GetTranslatePart();
+
+    return GetMESphere(scale, origin);
+}
+
+void VertexArray::CreateMESphere() {
+    Sphere result = {Vector3::Zero, 0};
+    Vector3 minimum = {std::numeric_limits<float>::max(), std::numeric_limits<float>::max(), std::numeric_limits<float>::max() };
+    Vector3 maximum = { std::numeric_limits<float>::lowest(), std::numeric_limits<float>::lowest(), std::numeric_limits<float>::lowest()};
+
+    for (const auto& vertex : local_vertices) {
+        if (vertex.x < minimum.x)
+            minimum.x = vertex.x;
+        if (vertex.x > maximum.x)
+            maximum.x = vertex.x;
+
+        if (vertex.y < minimum.y)
+            minimum.y = vertex.y;
+        if (vertex.y > maximum.y)
+            maximum.y = vertex.y;
+
+        if (vertex.z < minimum.z)
+            minimum.z = vertex.z;
+        if (vertex.z > maximum.z)
+            maximum.z = vertex.z;
+    }
+    result.Position = (minimum + maximum) * 0.5f;
+    for (const auto& vertex : local_vertices) {
+        float distance_squared = Vector3::DistanceSquared(result.Position, vertex);
+        if (distance_squared > result.Radius)
+            result.Radius = distance_squared;
+    }
+    result.Radius = std::sqrt(result.Radius);
+    me_sphere = result;
+}
+
+void VertexArray::CreateMEOBB() {
+    Vector3 minimum(std::numeric_limits<float>::max());
+    Vector3 maximum (std::numeric_limits<float>::min());
+
+    for (const auto& vertex : local_vertices) {
+        if (vertex.x < minimum.x)
+            minimum.x = vertex.x;
+        if (vertex.x > maximum.x)
+            maximum.x = vertex.x;
+
+        if (vertex.y < minimum.y)
+            minimum.y = vertex.y;
+        if (vertex.y > maximum.y)
+            maximum.y = vertex.y;
+
+        if (vertex.z < minimum.z)
+            minimum.z = vertex.z;
+        if (vertex.z > maximum.z)
+            maximum.z = vertex.z;
+    }
+
+    Vector3 position = (minimum + maximum) * 0.5f;
+    Vector3 half_extents = (maximum - minimum) * 0.5f;
+
+    me_obb = { position, half_extents, Vector3::UnitX, Vector3::UnitY, Vector3::UnitZ };
+}
+
+OBB VertexArray::GetMEOBB(const Matrix3x3& rotation_matrix, const Vector3& scale, const Vector3& translate_part) const {
+    Vector3 half_extents = me_obb.r.Mul(scale);
+    Vector3 axis0 = rotation_matrix * me_obb.axis[0];
+    Vector3 axis1 = rotation_matrix * me_obb.axis[1];
+    Vector3 axis2 = rotation_matrix * me_obb.axis[2];
+    Vector3 position = me_obb.pos + translate_part;
+
+    return { position, half_extents, axis0, axis1, axis2 };
+}
+
+OBB VertexArray::GetMEOBB(const Matrix4x4& instance_matrix, bool translate) const {
+    return GetMEOBB(instance_matrix.GetRotatePart(), instance_matrix.GetScale(), translate ? instance_matrix.GetTranslatePart() : Vector3::Zero);
+}
+
+AABB VertexArray::GetMEAABB(const Matrix3x3& rotation_matrix, const Vector3& scale, const Vector3& translate_part) const {
+    /* kind-of a cheat. It's faster to calculate the oriented bounding box and then put the axis-aligned one around that
+     * than to loop over the whole model like an idiot. You gain back all the speed with the simplicity of the physics anyways. - Redacted */
+    return GetMEOBB(rotation_matrix, scale, translate_part).MinimalEnclosingAABB();
+}
+
+AABB VertexArray::GetMEAABB(const Matrix4x4& instance_matrix, bool translate) const {
+    return GetMEAABB(instance_matrix.GetRotatePart(), instance_matrix.GetScale(), translate ? instance_matrix.GetTranslatePart() : Vector3::Zero);
+}
+
+VertexArray::VertexArray(const Vector3* vertex_positions, const long& vp_length, const unsigned int* vertex_indices, const long& vi_length,
+                         const Normal* vertex_normals, const long& vn_length, const TextureCoordinate* texture_coordinates, const long& vt_length) {
+
+    // TODO decimator. This is a total waste of memory as it sits.
+    vertices = VRamList(vertex_positions, vp_length);
+    if (vertex_indices && vi_length) {
+        indices = VRamList(vertex_indices, vi_length);
+        local_indices.resize(vi_length);
+        memcpy(local_indices.data(), vertex_indices, sizeof(unsigned int) * vi_length);
+    }
+
+    if (vertex_normals && vn_length) {
+        normals = VRamList(vertex_normals, vn_length);
+        local_normals.resize(vn_length);
+        memcpy(local_normals.data(), vertex_indices, sizeof(Normal) * vn_length);
+    }
+
+    if (texture_coordinates && vt_length) {
+        this->texture_coordinates = VRamList(texture_coordinates, vt_length);
+        local_normals.resize(vt_length);
+        memcpy(local_texture_coordinates.data(), texture_coordinates, sizeof(TextureCoordinate) * vt_length);
+    }
+
+}
+
+VertexArray::VertexArray(const std::vector<Vertex>& vertex_positions, const std::vector<unsigned int>& vertex_indices,
+                         const std::vector<Normal>& vertex_normals, const std::vector<TextureCoordinate>& texture_coordinates) {
+    vertices = VRamList(vertex_positions.data(), vertex_positions.size());
+    local_vertices = vertex_positions;
+
+    if (!vertex_indices.empty()) {
+        indices = VRamList(vertex_indices.data(), vertex_indices.size());
+        local_indices = vertex_indices;
+    }
+
+    if (!vertex_normals.empty()) {
+        normals = VRamList(vertex_normals.data(), vertex_normals.size());
+        local_normals = vertex_normals;
+    }
+
+    if (!texture_coordinates.empty()){
+        this->texture_coordinates = VRamList(texture_coordinates.data(), texture_coordinates.size());
+        local_texture_coordinates = texture_coordinates;
+    }
+}
+
+bool VertexArray::Static() {
+    return animations.empty();
+}