Make measure string go brrrrrrr

Fill quad
Gradient triangle
2024-07-31 12:01:57 -04:00 · 2024-07-30 23:37:47 -04:00 · 2024-07-30 15:49:13 -04:00 · 2024-07-29 19:30:23 -04:00 · 2024-07-29 19:29:11 -04:00 · 2024-07-29 19:24:55 -04:00
21 changed files with 1703 additions and 488 deletions
--- a/.gitea/workflows/buildtest.yml
+++ b/.gitea/workflows/buildtest.yml
@@ -0,0 +1,22 @@
+name: Run ReCI Build Test
+run-name: Run ReCI Build Test For ${{ gitea.repository }}.
+on: [push]
+
+jobs:
+  Explore-Gitea-Actions:
+    runs-on: ubuntu-22.04
+    env:
+      RECI_GIT: https://git.redacted.cc/maxine/ReCI
+      RECI: /RECI
+    steps:
+      - run: echo "The job was automatically triggered by a ${{ gitea.event_name }} event."
+      - run: echo "This job is now running on a ${{ runner.os }} server hosted by Gitea!"
+      - run: echo "The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      - 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 lua5.3 git && 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 }}."
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.25)
+cmake_minimum_required(VERSION 3.18)
 project(JGL
    VERSION 1.0
    LANGUAGES CXX
@@ -9,24 +9,19 @@ if (PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
 endif()

 set(CMAKE_CXX_STANDARD 20)
-if (WIN32)
-    set(CMAKE_CXX_FLAGS "-municode")
-endif(WIN32)
-
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

-
 # Enable Package Managers
 include(cmake/CPM.cmake)

 CPMAddPackage(
        NAME J3ML
-        URL https://git.redacted.cc/josh/j3ml/archive/Release-2.1.zip
+        URL https://git.redacted.cc/josh/j3ml/archive/Release-2.2.zip
 )

 CPMAddPackage(
        NAME ReWindow
-        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-1.zip
+        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-3.zip
 )

 CPMAddPackage(
@@ -36,30 +31,75 @@ CPMAddPackage(

 CPMAddPackage(
        NAME jlog
-        URL https://git.redacted.cc/josh/jlog/Prerelease-7.zip
+        URL https://git.redacted.cc/josh/jlog/Prerelease-12.zip
 )

+CPMAddPackage(
+        NAME Event
+        URL https://git.redacted.cc/josh/Event/archive/Release-6.zip
+)
+
+CPMAddPackage(
+        NAME ReTexture
+        URL https://git.redacted.cc/Redacted/ReTexture/archive/Release-1.zip
+)
+
+if (WIN32)
+    #CPMAddPackage(
+            #NAME harfbuzz
+            #URL https://github.com/harfbuzz/harfbuzz/archive/refs/tags/9.0.0.zip
+    #)
+
+    CPMAddPackage(
+            NAME freetype
+            URL https://github.com/freetype/freetype/archive/refs/tags/VER-2-13-2.zip
+    )
+endif()
+
 file(COPY "assets" DESTINATION "${PROJECT_BINARY_DIR}")
+file(GLOB_RECURSE ASSETS  "assets/*")
 file(GLOB_RECURSE HEADERS "include/*.h" "include/*.hpp")
 file(GLOB_RECURSE SOURCES "src/*.c"     "src/*.cpp"    )
-file(GLOB_RECURSE ASSETS  "assets/*")
-
-add_library(JGL SHARED ${SOURCES})
-set_target_properties(JGL PROPERTIES LINKER_LANGUAGE CXX)

 find_package(OpenGL REQUIRED)
-find_package(Freetype REQUIRED)
+
+if (UNIX AND NOT APPLE)
+    find_package(Freetype REQUIRED)
+    add_library(JGL SHARED ${SOURCES})
+endif()
+
+if (WIN32)
+    add_library(JGL STATIC ${SOURCES})
+endif()
+
+set_target_properties(JGL PROPERTIES LINKER_LANGUAGE CXX)
+
+#Don't expose this one because it's only to be used in the demo program.
+include_directories(${ReTexture_SOURCE_DIR}/include)
+
+target_include_directories(JGL PUBLIC
+        ${PROJECT_SOURCE_DIR}/include
+        ${OPENGL_INCLUDE_DIRS}
+        ${J3ML_SOURCE_DIR}/include
+        ${Event_SOURCE_DIR}/include
+        ${ReWindow_SOURCE_DIR}/include
+        ${glad_SOURCE_DIR}/include
+        ${jlog_SOURCE_DIR}/include
+)

 add_executable(JGL_Demo main.cpp)
-set_target_properties(JGL_Demo PROPERTIES LINK_FLAGS "-Wl,-rpath,./lib")
-include_directories(${PROJECT_SOURCE_DIR}/include)
-include_directories(${OPENGL_INCLUDE_DIRS})
-include_directories(${J3ML_SOURCE_DIR}/include)
-include_directories(${ReWindow_SOURCE_DIR}/include)
-include_directories(${glad_SOURCE_DIR}/include)
-include_directories(${jlog_SOURCE_DIR}/include)
+#set_target_properties(JGL_Demo PROPERTIES LINK_FLAGS "-Wl,-rpath,./lib")

-target_include_directories(JGL PRIVATE ${FREETYPE_INCLUDE_DIRS})
-target_link_libraries(JGL PRIVATE ${FREETYPE_LIBRARIES})
-target_include_directories(JGL PRIVATE ${FREETYPE_INCLUDE_DIRS})
-target_link_libraries(JGL_Demo PUBLIC JGL ${OPENGL_LIBRARIES} J3ML ReWindowLibrary glad jlog)
+if (UNIX AND NOT APPLE)
+    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)
+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)
+endif()
+
+target_link_libraries(JGL_Demo PUBLIC JGL ReTexture)
--- a/README.md
+++ b/README.md
@@ -1,11 +1,59 @@
 # Josh Graphics Library

-# 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.
+Yet Another C++ Rendering Toolkit

-# Non-Goals
-* Full Rendering Engine
-* OpenGL/Vulkan Wrapper
-* Asset Loading & Management
+![Static Badge](https://img.shields.io/badge/Lit-Based-%20)
+
+
+## Features
+
+* Modern C++ (20)
+* Provides single-function-calls to render various graphics primitives in 2D and 3D.
+* Integrates directly with our other toolkits (ReWindow, J3ML)
+* Quick Rendering of Debug Text, Geometric Widgets, Textures, and so forth.
+* Little-to-no overhead.
+* Integrates right into an existing OpenGL rendering system.
+* High-performance text rendering.
+
+## API Overview
+
+### J2D
+* DrawPixel
+* DrawLine / DrawGradientLine
+* DrawSprite
+* OutlineRect / FillRect / FillGradientRect / FillRoundedRect
+* OutlineCircle / FillCircle
+* OutlineTriangle / FillTriangle
+* DrawString
+### J3D
+* DrawLine
+* DrawString
+* DrawMatrixGizmo (WIP)
+* DrawAxisAngleGizmo (WIP)
+* DrawQuaternionGizmo (WIP)
+
+### Types
+* Font
+* Sprite
+* Color4/Color3
+* Gradient
+
+## Usage
+
+Install instructions and code samples coming soon :tm: !
+
+## Documentation
+
+Documentation is (sic: will be) automatically generated from latest commit and is hosted at https://doc.redacted.cc/jgl .
+
+## 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.
--- a/assets/fonts/Jupiteroid.ttf
+++ b/assets/fonts/Jupiteroid.ttf
--- a/assets/sprites/Re3D.png
+++ b/assets/sprites/Re3D.png
--- a/include/JGL/Color3.h
+++ b/include/JGL/Color3.h
@@ -1,31 +1,39 @@
 #pragma once

-#include <JGL/Color4.h>
 #include <J3ML/J3ML.h>

 namespace JGL
 {
    using namespace J3ML;
-    struct Color3 {
+    /// Represents a 3-channel color value, with Red, Green and Blue components.
+    class Color3 {
+    public:
        u8 r;
        u8 g;
        u8 b;

+    public:
+        /// Explicitly constructs a Color3 from the given Red, Green, and Blue values.
+        Color3(u8 R, u8 G, u8 B);
+        /// Returns a Color3 parsed from the given hexadecimal string.
+        static Color3 FromHex(const std::string& hexCode);
+    public:
+        /// Returns a Color3 that is somewhere in-between this and the given Color3, determined by the alpha [0-1].
        Color3 Lerp(const Color3& rhs, float alpha) const;
-        Color4 WithAlphaChannel(float alpha = 1) const;
-        Color3(u8 R, u8 G, u8 B) : r(R), g(G), b(B) {}
-        Color3(const Color4& c)
-        {
-            this->r = c.r;
-            this->g = c.g;
-            this->b = c.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;}
+
+        /// Returns the red channel [0-255].
+        u8 RedChannel  () const;
+        /// Returns the green channel [0-255].
+        u8 GreenChannel() const;
+        /// Returns the blue channel [0-255].
+        u8 BlueChannel () const;
+        /// Returns the red channel normalized from [0-255] to [0-1].
+        float RedChannelNormalized ()  const;
+        /// Returns the green channel normalized from [0-255] to [0-1].
+        float GreenChannelNormalized() const;
+        /// Returns the blue channel normalized from [0-255] to [0-1].
+        float BlueChannelNormalized()  const;
+
    };


--- a/include/JGL/Color4.h
+++ b/include/JGL/Color4.h
@@ -1,11 +1,32 @@
 #pragma once

+#include <JGL/Color3.h>
+
 namespace JGL
 {
-    struct Color4{
-        int r;
-        int g;
-        int b;
-        int a;
+
+    /// Represents a 4-channel color value, with Red, Green, Blue, and Alpha components.
+    class Color4 {
+    public:
+        u8 r;
+        u8 g;
+        u8 b;
+        u8 a;
+    public:
+        explicit Color4(const Color3& color3, u8 alpha = 255);
+        Color4(u8 red, u8 green, u8 blue, u8 alpha = 255);
+        static Color4 FromColor3(const Color3& color3, u8 alpha = 255);
+        static Color4 FromHex(const std::string& hexCode, u8 alpha = 255);
+
+    public:
+        u8 RedChannel() const;
+        u8 GreenChannel() const;
+        u8 BlueChannel() const;
+        u8 AlphaChannel() const;
+
+        float RedChannelNormalized() const;
+        float GreenChannelNormalized() const;
+        float BlueChannelNormalized() const;
+        float AlphaChannelNormalized() const;
    };
 }
--- a/include/JGL/Font.h
+++ b/include/JGL/Font.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include <vector>
+#include <filesystem>
+#include <J3ML/LinearAlgebra.h>
+#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
+{
+
+    /// Initializes FreeType engine. Remember to call this during program initialization.
+    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;
+    };
+}
--- a/include/JGL/FontCache.h
+++ b/include/JGL/FontCache.h
@@ -0,0 +1,67 @@
+#pragma once
+
+#include <array>
+#include <map>
+#include <vector>
+#include <glad/glad.h>
+
+
+/// 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 std::array<GLfloat, 12> getTexCoords() const;
+};
+
+/// Represents a Font object as it exists in the font-cache.
+class JGL::CachedFont {
+private:
+    std::map<char, CachedGlyph*> glyphs;
+    GLuint texture = 0;
+    GLsizei texture_width = 0, texture_height = 0;
+    unsigned int font_size = 0;
+    unsigned int font_index = 0;
+public:
+    void appendGlyph(CachedGlyph* glyph);
+    unsigned int getFontSize();
+    unsigned int getFontIndex();
+    CachedGlyph* getGlyph(char c);
+    std::map<char, CachedGlyph*> getGlyphs();
+    const GLuint* getTexture();
+    GLsizei getTextureWidth() const;
+    GLsizei getTextureHeight() const;
+    CachedFont(GLuint texture_id, GLsizei texture_width, GLsizei texture_height, 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(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;
+}
--- a/include/JGL/JGL.h
+++ b/include/JGL/JGL.h
@@ -1,36 +1,37 @@
-//
-// 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 2024-07-16
+
+
 #pragma once

+#include <string>
+#include <iostream>
+#include <JGL/Color4.h>
+#include <JGL/enums.h>
+#include <JGL/FontCache.h>
+#include <JGL/Font.h>
 #include <J3ML/LinearAlgebra.h>
 #include <J3ML/LinearAlgebra/Vector2.h>
 #include <J3ML/LinearAlgebra/Vector3.h>
-#include <string>
-#include <iostream>
-#include <JGL/Color3.h>
 #include <J3ML/Geometry/Sphere.h>
-#include <J3ML/Geometry/OBB.h>
 #include <J3ML/Geometry/Capsule.h>
-#include <J3ML/Geometry/Plane.h>
 #include <J3ML/Geometry/TriangleMesh.h>

 // OpenGL Wrapper for rendering 2D graphics primitives in both a 2D and 3D context
 namespace JGL {

-    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;
+    using namespace J3ML::LinearAlgebra;
+    using namespace J3ML::Geometry;

+    /// TODO:
    struct HSV {
        float hue;
        float saturation;
@@ -51,45 +52,133 @@ namespace JGL {
        Vector3 C;
    };

-    bool InitTextEngine();
+    void Update(const Vector2& window_size);
+    //bool InitTextEngine();
+    Font LoadFont(const std::string& font_path); // TODO: Fully deprecate
+    void PurgeFontCache();

+    void SetActiveFont(const Font& font); // TODO: Implement
    // TODO: implement correct coloring

+    /// Drawing functions for primitive 2D Shapes.
+    /// Each function is overloaded with Color3 and Color4 for optional transparency.
    namespace J2D {
-        void DrawPixel2D(const Color3 &color, const Vector2 &coordinates);
-        void DrawPixel2D(const Color3 &color, float x, float y);
-        void DrawLine2D(const Color3 &color, const Vector2 &A, const Vector2 &B, float thickness = 1);
-        void DrawLine2D(const Color3 &color, float x, float y, float w, float h, float thickness = 1);
-        void DrawCubicBezierCurve2D();
-        void OutlineCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions,
-                             float thickness = 1);
-        void FillCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions);
-        void OutlineTriangle2D(const Color3 &color, const Triangle2D &tri);
-        void FillTriangle2D(const Color3 &color, const Triangle2D &tri);
-        void FillTexturedTriangle2D();
-        void FillTexturedPolygon2D();
-        void DrawSprite2D();
-        void DrawPartialSprite2D();
-        void DrawString2D(const Color3& color, std::string text, float x, float y, float scale, u32 size = 16);
-        void FillRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size);
-        void OutlineRect2D       ( const Color3& color, const Vector2& pos, const Vector2& size, float thickness = 1);
-        void FillRoundedRect2D   (const Color3& color, const Vector2& pos, const Vector2& size, float radius);
-        void OutlineRoundedRect2D(const Color3& color, const Vector2& pos, const Vector2& size, float radius, float thickness = 1);
-        void OutlinePolygon2D    (const Color3& color, std::vector<Vector2> points);
-        void FillPolygon2D       (const Color3& color, std::vector<Vector2> points, float thickness = 1);
-        void GradientFillRect2D  ();
+
+        /// 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();
+
+        /// 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);
+
+        /// 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);
+
+        ///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);
+
+        /// 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);
+
+        ///Draws a sprite to the screen.
+        void DrawSprite(GLuint texture, const Vector2& pos, const Vector2& size, u8 opacity = 255, Inversion::Inversion inversion = Inversion::None);
+        void DrawSprite(GLuint texture, float x, float y, float w, float h, u8 opacity = 255, Inversion::Inversion inversion = Inversion::None);
+
+        ///Draws a non axis-aligned fill rect to the screen.
+        ///The order of the vertices must be such that if you were to connect them you'd never go diagonally across the quad.
+        void FillQuad(const Color4& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4);
+        void FillQuad(const Color3& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4);
+
+        ///Draws a non axis-aligned outline rect to the screen.
+        ///The order of the vertices must be such that if you were to connect them you'd never go diagonally across the quad.
+        void OutlineQuad(const Color4& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4, float thickness = 1);
+        void OutlineQuad(const Color3& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4, float thickness = 1);
+
+        /// 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);
+
+        /// Draws a filled rectangle where the color transitions across it.
+        void FillGradientRect(const Color4& color1, const Color4& color2, const Gradient::Gradient& gradient, const Vector2& pos, const Vector2& size);
+        void FillGradientRect(const Color3& color1, const Color3& color2, const Gradient::Gradient& gradient, const Vector2& pos, const Vector2& size);
+
+        /// 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);
+
+        /// 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 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 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 a filled triangle on the screen.
+        void FillTriangle(const Color4& color, const Triangle2D& tri);
+        void FillTriangle(const Color3& color, const Triangle2D& tri);
+
+        /// Draws a triangle where each corner is defined by a given color, Smoothly transitioning between them.
+        void FillGradientTriangle(const Color4& a_color, const Color4& b_color, const Color4& c_color, const Triangle2D& tri);
+        void FillGradientTriangle(const Color3& a_color, const Color3& b_color, const Color3& c_color, const Triangle2D& tri);
+        // TODO: Implement an overload that simply takes 3 Vector3's
+
+
+        /// Draws a text string on the screen with a given point-size and font.
+        void DrawString(const Color4& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font);
+        void DrawString(const Color3& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font);
+
+        // TODO: Implement the following:
+        void FillTexturedTriangle();
+        void FillTexturedPolygon();
+        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);
    }
+
    namespace J3D {
-        void DrawLine3D(const Color3& color, const Vector3 &A, const Vector3 &B, float thickness = 1);
-        void FillSphere3D(const Color3& color, const Sphere& sphere);
-        void WireframeSphere3D(const Color3& color, const Sphere& sphere, float thickness = 1);
-        void FillOBB3D(const Color3& color, const OBB& obb);
-        void WireframeOBB3D(const Color3& color, const OBB& obb, float thickness = 1);
-        void FillCapsule3D(const Color3& color, const Capsule& capsule);
-        void WireframeCapsule3D(const Color3& color, const Capsule& cap, float thickness = 1);
-        void FillTriangleMesh3D(const Color3& color, const TriangleMesh& mesh);
-        void WireframeTriangleMesh3D(const Color3& color, const TriangleMesh& mesh, float thickness = 1);
-        void DrawString3D(const Color3& color, const std::string& text, const Vector3& pos, float scale, u32 size = 12);
+        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, const Font& font);

        void DrawMatrixGizmo     (const Matrix3x3&, const Vector3&);
        void DrawMatrixGizmo     (const Matrix4x4&);
--- a/include/JGL/enums.h
+++ b/include/JGL/enums.h
@@ -0,0 +1,26 @@
+#pragma once
+
+namespace JGL::Inversion {
+    enum Inversion {
+        None = 0,
+        Vertical = 1,
+        Horizontal = 2,
+    };
+
+    inline Inversion operator|(Inversion a, Inversion b) {
+        return static_cast<Inversion>(static_cast<int>(a) | static_cast<int>(b));
+    }
+}
+
+namespace JGL::Gradient {
+    enum Gradient {
+        Vertical = 0,
+        Horizontal = 1,
+        DiagonalTopLeft = 2,
+        DiagonalBottomLeft = 3
+    };
+
+    inline Gradient operator|(Gradient a, Gradient b) {
+        return static_cast<Gradient>(static_cast<int>(a) | static_cast<int>(b));
+    }
+}
--- a/main.cpp
+++ b/main.cpp
@@ -1,26 +1,59 @@
-#include <glad/glad.h>
+
 #include <JGL/JGL.h>
 #include <rewindow/types/window.h>
 #include <JGL/Colors.h>
 #include <J3ML/LinearAlgebra/Vector2.h>
+#include <JGL/Font.h>
+#include <jlog/jlog.hpp>
+#include <ReTexture/Texture.h>

 using J3ML::LinearAlgebra::Vector2;
+using namespace JGL;
+using namespace ReTexture;

-#if defined(_WIN32) || defined(_WIN64)
-#include <windows.h>
-#endif
+Texture* image;
+GLuint imageID;
+//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;
+}

-struct Character
-{
-    unsigned int TextureID; // ID handle of the glyph texture
-    Vector2 Size;           // Size of glyph
-    Vector2 Bearing;        // Offset from baseline to left/top of glyph
-    unsigned int Advance;   // Offset to advance to next glyph
+class Camera {
+public:
+    Vector3 position = {0,0,0};
+    Vector3 angle = {0,0,0};
+
+    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::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,
+                -s.Dot(eye), -u.Dot(eye),  f.Dot(eye), 1.0f
+        };
+        return result;
+    }
+
+    void render() {
+        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);
+        glMultMatrixf(lookAt({position.x, position.y, position.z}, {position.x, position.y, 100.f + position.z}, {0,1,0}).data());
+    }
 };

-std::map<char, Character> Characters;
-GLuint VAO, VBO;
-
+Camera* camera;
 using J3ML::LinearAlgebra::Matrix4x4;

 struct point {
@@ -30,91 +63,115 @@ struct point {
    GLfloat t;
 };

+JGL::Font FreeSans;
+JGL::Font Jupiteroid;
+
 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];

-    JGLDemoWindow() : ReWindow::RWindow() {}
-    JGLDemoWindow(const std::string& title, int width, int height) :
-            ReWindow::RWindow(title, width, height)
-    {
-
-    }
-
-    void initGL()
-    {
        gladLoadGL();
-
-        glMatrixMode(GL_PROJECTION);
-        glLoadIdentity();
-        glOrtho(0, getSize().x, getSize().y, 0, -1, 1);
-        glMatrixMode(GL_MODELVIEW);
-
-        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-        glEnable(GL_CULL_FACE);
-        glEnable(GL_BLEND);
-        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-        glEnable(GL_TEXTURE_2D);
-
        JGL::InitTextEngine();
-    }
-
-
-    void display()
-    {
-        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        JGL::Update(getSize());
+        FreeSans = JGL::Font("assets/fonts/FreeSans.ttf");
+        Jupiteroid = JGL::Font("assets/fonts/Jupiteroid.ttf");

        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
-        glOrtho(0, getSize().x, getSize().y, 0, -1, 1);
+        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);

-        JGL::J2D::FillRect2D(JGL::Colors::Blue, {32, 32}, {100.5, 100.5});
-        JGL::J2D::FillRect2D(JGL::Colors::Blue, {32, 32}, {100.5, 100.5});
+        image = new Texture("assets/sprites/Re3D.png");
+        glGenTextures(1, &imageID);
+        glBindTexture(GL_TEXTURE_2D, imageID);
+        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);

-        JGL::Triangle2D tri
-                {
-                        {140, 200},
-                        {135, 100},
-                        {105, 100}
-                };
-        JGL::J2D::FillTriangle2D(JGL::Colors::Yellow, tri);
+        if (image->getTextureFormat() == TextureFormat::RGBA)
+            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image->getWidth(), image->getHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixelData.data());
+        if (image->getTextureFormat() == TextureFormat::RGB)
+            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, image->getWidth(), image->getHeight(), 0, GL_RGB, GL_UNSIGNED_BYTE, image->pixelData.data());

-
-        JGL::J3D::DrawString3D(JGL::Colors::Red, "JGL Sample Text", {1, -120, 0.5f}, 2.f);
-        JGL::J2D::DrawString2D(JGL::Colors::Green, "William J. Tomasine II ", 0.f, -120.f, 1.f);
-
-        JGL::J2D::DrawLine2D(JGL::Colors::Greens::DarkGreen, {10, 10}, {200, 300});
-        JGL::J3D::DrawLine3D(JGL::Colors::Red, {0,0,0}, {1,0,0});
-        JGL::J3D::DrawLine3D(JGL::Colors::Red, {0,0,0}, {1,0,0});
-
-        //glFlush();
+        glBindTexture(GL_TEXTURE_2D, 0);
    }

-    void OnRefresh(float elapsed) override
-    {
+    Vector3 textAngle = {0,0,0};
+    void display() {
+        textAngle.y += 2.0f;
+        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.
+
+        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::End();
+
+        J2D::Begin();
+            J2D::FillQuad(Color4(Colors::Red), {500, 52}, {500, 152}, {600, 152}, {600, 52});
+            J2D::FillRect(Colors::Blue, {0,52}, {100,100});
+            J2D::DrawSprite(imageID, {0, 52}, {(float) image->getWidth(), (float) image->getHeight()}, 128);
+            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::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::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);
+            auto result = Jupiteroid.MeasureString("Jupiteroid Font", 16);
+
+            J2D::FillRect(JGL::Colors::Gray, {0, 0}, result);
+            J2D::DrawString(JGL::Colors::Green, "Jupteroid Font", 0.f, 0, 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, 16, 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, 33, 1,16, Jupiteroid);
+        J2D::End();
+    }
+
+    void OnRefresh(float elapsed) override {
        display();
-        this->glSwapBuffers();
-    }
-    bool OnResizeRequest(const ReWindow::WindowResizeRequestEvent& e) override
-    {
-        return true;
+        int glError = glGetError();
+        if (glError != GL_NO_ERROR)
+            std::cout << glError << std::endl;
+        glSwapBuffers();
    }
+
+    bool OnResizeRequest(const ReWindow::WindowResizeRequestEvent& e) override {return true;}
+    JGLDemoWindow() : ReWindow::RWindow() {}
+    JGLDemoWindow(const std::string& title, int width, int height) : ReWindow::RWindow(title, width, height){}
 };

-int main(int argc, char** argv)
-{
+int main(int argc, char** argv) {
    auto* window = new JGLDemoWindow("JGL Demo Window", 1280, 720);
    window->setRenderer(RenderingAPI::OPENGL);
    window->Open();
    window->initGL();
-    window->setResizable(true);
-    while (window->isAlive())
-    {
+    window->setResizable(false);
+
+    while (window->isAlive()) {
        window->pollEvents();
        window->refresh();
    }
-
    return 0;
 }
--- a/reci/scripts/builddeps.reci
+++ b/reci/scripts/builddeps.reci
@@ -0,0 +1 @@
+Main:new("Install build dependencies", "apt-get install -yq libgl1-mesa-dev libfreetype-dev")
--- a/reci/scripts/install_build_dependencies.sh
+++ b/reci/scripts/install_build_dependencies.sh
@@ -0,0 +1,7 @@
+source $RECI/shlib/info.sh
+
+INFO "Installing build dependencies for JGL"
+GROUP="Install build dependencies" RUN '
+apt-get install -yq libgl1-mesa-dev libfreetype-dev
+'
+
--- a/src/FontCache.cpp
+++ b/src/FontCache.cpp
@@ -0,0 +1,107 @@
+#include <JGL/FontCache.h>
+
+using namespace JGL;
+
+char CachedGlyph::getCharacter() {
+    return character;
+}
+
+const 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;
+}
+
+//TODO
+//Because most things shown would be english characters. We can cut down on the iteration time significantly
+//by putting each english character at the beginning of the list in order of how often they usually occur in text.
+void JGL::CachedFont::appendGlyph(JGL::CachedGlyph* glyph) {
+    glyphs.emplace(glyph->getCharacter(), glyph);
+}
+
+unsigned int JGL::CachedFont::getFontSize() {
+    return font_size;
+}
+
+unsigned int JGL::CachedFont::getFontIndex() {
+    return font_index;
+}
+
+//TODO make this code go faster.
+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::map<char, CachedGlyph*> CachedFont::getGlyphs() {
+    return glyphs;
+}
+
+const GLuint* CachedFont::getTexture() {
+    return &texture;
+}
+
+GLsizei CachedFont::getTextureWidth() const {
+    return texture_width;
+}
+
+GLsizei CachedFont::getTextureHeight() const {
+    return texture_height;
+}
+
+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;
+}
--- a/src/JGL.cpp
+++ b/src/JGL.cpp
@@ -0,0 +1,531 @@
+//
+// Created by dawsh on 1/17/24.
+//
+
+#include <JGL/JGL.h>
+#include <glad/glad.h>
+#include <JGL/Color3.h>
+#include <jlog/jlog.hpp>
+
+GLfloat oldColor[4] = {0, 0, 0, 1};
+GLfloat baseColor[4] = {1, 1, 1, 1};
+bool inJ2D = false;
+bool inJ3D = false;
+bool wasTexture2DEnabled = false;
+bool wasTextureCoordArrayEnabled = false;
+bool wasDepthTestEnabled = false;
+bool wasVertexArraysEnabled = false;
+bool wasCullFaceEnabled = false;
+bool wasBlendEnabled = false;
+bool wasColorArrayEnabled = false;
+GLint activeTextureUnit = 0;
+
+namespace JGL {
+    using namespace J3ML;
+    Vector2 wS;
+
+    void Update(const Vector2& window_size) {
+        wS = window_size;
+    }
+
+
+    void J2D::Begin() {
+        glMatrixMode(GL_PROJECTION);
+        glPushMatrix();
+        glLoadIdentity();
+        glOrtho(0, wS.x, wS.y, 0, -1, 1);
+        glMatrixMode(GL_MODELVIEW);
+        glPushMatrix();
+        glLoadIdentity();
+
+        //Get what the draw color was before we did anything.
+        glGetFloatv(GL_CURRENT_COLOR, oldColor);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+
+        glGetIntegerv(GL_ACTIVE_TEXTURE,& activeTextureUnit);
+        activeTextureUnit = activeTextureUnit - GL_TEXTURE0;
+        if (activeTextureUnit != 0)
+            glActiveTexture(GL_TEXTURE0);
+
+        wasDepthTestEnabled = false;
+        if (glIsEnabled(GL_DEPTH_TEST))
+            wasDepthTestEnabled = true,
+            glDisable(GL_DEPTH_TEST);
+
+        wasVertexArraysEnabled = true;
+        if (!glIsEnabled(GL_VERTEX_ARRAY))
+            wasVertexArraysEnabled = false,
+            glEnableClientState(GL_VERTEX_ARRAY);
+
+        wasCullFaceEnabled = true;
+        if (!glIsEnabled(GL_CULL_FACE))
+            wasCullFaceEnabled = false,
+            glEnable(GL_CULL_FACE),
+            glCullFace(GL_BACK);
+
+        wasBlendEnabled = true;
+        if (!glIsEnabled(GL_BLEND))
+            wasBlendEnabled = false,
+            glEnable(GL_BLEND),
+            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+        wasTexture2DEnabled = true;
+        if (!glIsEnabled(GL_TEXTURE_2D))
+            wasTexture2DEnabled = false,
+            glEnable(GL_TEXTURE_2D);
+
+        wasTextureCoordArrayEnabled = true;
+        if (!glIsEnabled(GL_TEXTURE_COORD_ARRAY))
+            wasTextureCoordArrayEnabled = false,
+            glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+        wasColorArrayEnabled = false;
+        if (glIsEnabled(GL_COLOR_ARRAY))
+            wasColorArrayEnabled = true,
+            glDisableClientState(GL_COLOR_ARRAY);
+
+        if (!inJ3D)
+            inJ2D = true;
+        else { ERROR("Attempt to Begin J2D inside of J3D context.") }
+    }
+
+    void J2D::End() {
+        //Change back to the previous projection (The 3D one in Re3D's case.)
+        glPopMatrix();
+        glMatrixMode(GL_PROJECTION);
+        glPopMatrix();
+        glMatrixMode(GL_MODELVIEW);
+        if (wasDepthTestEnabled)
+            glEnable(GL_DEPTH_TEST);
+
+        if (!wasVertexArraysEnabled)
+            glDisableClientState(GL_VERTEX_ARRAY);
+
+        if (!wasCullFaceEnabled)
+            glDisable(GL_CULL_FACE);
+
+        if (!wasBlendEnabled)
+            glDisable(GL_BLEND);
+
+        if (!wasTexture2DEnabled)
+            glDisable(GL_TEXTURE_2D);
+
+        if (!wasTextureCoordArrayEnabled)
+            glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+
+        if (wasColorArrayEnabled)
+            glEnableClientState(GL_COLOR_ARRAY);
+
+        //Select whatever texture unit was selected before.
+        glActiveTexture(GL_TEXTURE0 + activeTextureUnit);
+
+        //Put the draw color back how it was before.
+        glColor4f(oldColor[0], oldColor[1], oldColor[2], oldColor[3]);
+
+        inJ2D = false;
+    }
+
+    //TODO rotation, I'm unsure if @josh wants degrees or radians.
+    void J2D::DrawSprite(GLuint texture, const Vector2& pos, const Vector2& size, u8 opacity, Inversion::Inversion inversion) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        std::array<Vector2, 4> textureCoordinates = {Vector2(0, 0), Vector2(0, 1), Vector2(1, 1), Vector2(1, 0)};;
+        const Vector2 vertices[] = {{pos.x, pos.y}, {pos.x, pos.y + size.y}, {pos.x + size.x, pos.y + size.y}, {pos.x + size.x, pos.y}};
+
+        if (inversion&  Inversion::Vertical)
+            textureCoordinates = {Vector2(0, 1), Vector2(0, 0), Vector2(1, 0), Vector2(1, 1)};
+        if (inversion&  Inversion::Horizontal)
+            textureCoordinates = {Vector2(1, 0), Vector2(1, 1), Vector2(0, 1), Vector2(0, 0)};
+        if ((inversion& Inversion::Horizontal) && (inversion& Inversion::Vertical))
+            textureCoordinates = {Vector2(1, 1), Vector2(1, 0), Vector2(0, 0), Vector2(0, 1)};
+
+        glColor4f(baseColor[0],baseColor[1],baseColor[2],opacity / 255.f);
+        glBindTexture(GL_TEXTURE_2D, texture);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glTexCoordPointer(2, GL_FLOAT, sizeof(Vector2), textureCoordinates.data());
+        glDrawArrays(GL_QUADS, 0, 4);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillQuad(const Color4& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {v1, v2, v3, v4};
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_QUADS, 0, 4);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillQuad(const Color3& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4) {
+        J2D::FillQuad(Color4(color), v1, v2, v3, v4);
+    }
+
+    void J2D::OutlineQuad(const Color4& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4, float thickness) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {v1, v2, v3, v4};
+        glLineWidth(thickness);
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_LINE_LOOP, 0, 4);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::OutlineQuad(const Color3& color, const Vector2& v1, const Vector2& v2, const Vector2& v3, const Vector2& v4, float thickness) {
+        J2D::OutlineQuad(Color4(color), v1, v2, v3, v4);
+    }
+
+    void J2D::DrawSprite(GLuint texture, float x, float y, float w, float h, u8 opacity, Inversion::Inversion inversion) {
+        J2D::DrawSprite(texture, {x, y}, {w, h}, opacity, inversion);
+    }
+
+    void J2D::FillRect(const Color4& color, const Vector2& pos, const Vector2& size) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {{pos.x, pos.y}, {pos.x, pos.y + size.y}, {pos.x + size.x, pos.y + size.y}, {pos.x + size.x, pos.y}};
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_QUADS, 0, 4);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillRect(const Color3& color, const Vector2& pos, const Vector2& size) {
+        J2D::FillRect({color.r, color.g, color.b, 255}, pos, size);
+    }
+
+    void J2D::FillGradientRect(const Color4& color1, const Color4& color2, const Gradient::Gradient& gradient, const Vector2& pos, const Vector2& size) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {{pos.x, pos.y}, {pos.x, pos.y + size.y}, {pos.x + size.x, pos.y + size.y}, {pos.x + size.x, pos.y}};
+        std::vector<GLfloat> colors = {};
+
+        if (gradient == Gradient::Horizontal)
+            colors = {color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f, color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f,
+                     color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f, color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f};
+
+        else if (gradient == Gradient::Vertical)
+            colors = {color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f, color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f,
+                     color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f, color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f};
+
+        else if (gradient == Gradient::DiagonalBottomLeft)
+            colors = {(color1.r + color2.r) / 2.f / 255.f, (color1.g + color2.g) / 2.f / 255.f, (color1.b + color2.b) / 2.f / 255.f, (color1.a + color2.a) / 2.f / 255.f,
+                    color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f,(color1.r + color2.r) / 2.f / 255.f, (color1.g + color2.g) / 2.f / 255.f,
+                    (color1.b + color2.b) / 2.f / 255.f, (color1.a + color2.a) / 2.f / 255.f, color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f};
+
+        else if (gradient == Gradient::DiagonalTopLeft)
+                    colors = {color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f,(color1.r + color2.r) / 2.f / 255.f, (color1.g + color2.g) / 2.f / 255.f,
+                              (color1.b + color2.b) / 2.f / 255.f, (color1.a + color2.a) / 2.f / 255.f,color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f,
+                              (color1.r + color2.r) / 2.f / 255.f, (color1.g + color2.g) / 2.f / 255.f, (color1.b + color2.b) / 2.f / 255.f,(color1.a + color2.a) / 2.f / 255.f};
+
+        glEnableClientState(GL_COLOR_ARRAY);
+            glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+            glColorPointer(4, GL_FLOAT, 0, colors.data());
+            glDrawArrays(GL_QUADS, 0, 4);
+        glDisableClientState(GL_COLOR_ARRAY);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillGradientRect(const Color3& color1, const Color3& color2, const Gradient::Gradient& gradient, const Vector2& pos, const Vector2& size) {
+        J2D::FillGradientRect({color1.r, color1.g, color1.b, 255}, {color2.r, color2.g, color2.b, 255}, gradient, pos, size);
+    }
+
+    void J2D::FillRoundedRect(const Color4& color, const Vector2& pos, const Vector2& size, float radius, unsigned int subdivisions) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        J2D::FillRect(color, {pos.x + radius, pos.y}, {size.x - 2 * radius, size.y});
+        J2D::FillRect(color, {pos.x, pos.y + radius}, {size.x, size.y - 2 * radius});
+
+        J2D::FillCircle(color, {pos.x + radius, pos.y + radius}, radius, subdivisions);
+        J2D::FillCircle(color, {pos.x + size.x - radius, pos.y + radius}, radius, subdivisions);
+        J2D::FillCircle(color, {pos.x + radius, pos.y + size.y - radius}, radius, subdivisions);
+        J2D::FillCircle(color, {pos.x + size.x - radius, pos.y + size.y - radius}, radius, subdivisions);
+    }
+
+    void J2D::FillRoundedRect(const JGL::Color3& color, const J3ML::LinearAlgebra::Vector2& pos, const J3ML::LinearAlgebra::Vector2& size, float radius, unsigned int subdivisions) {
+        J2D::FillRoundedRect({color.r, color.g, color.b, 255}, pos, size, radius, subdivisions);
+    }
+
+    void J2D::OutlineRect(const Color4& color, const Vector2& pos, const Vector2& size, float thickness) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {{pos.x, pos.y}, {pos.x, pos.y + size.y}, {pos.x + size.x, pos.y + size.y}, {pos.x + size.x, pos.y}};
+
+        glLineWidth(thickness);
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_LINE_LOOP, 0, 4);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::OutlineRect(const Color3& color, const Vector2& pos, const Vector2& size, float thickness) {
+        J2D::OutlineRect({color.r, color.g, color.b, 255}, pos, size, thickness);
+    }
+
+    void J2D::DrawLine(const Color4& color, const Vector2& A, const Vector2& B, float thickness) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.");
+
+        Vector2 vertices[] = {A, B};
+
+        glLineWidth(thickness);
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_LINES, 0, 2);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::DrawLine(const Color3& color, const Vector2& A, const Vector2& B, float thickness) {
+        J2D::DrawLine({color.r, color.g, color.b, 255}, A, B, thickness);
+    }
+
+    void J2D::DrawLine(const Color4& color, float x, float y, float w, float h, float thickness) {
+        J2D::DrawLine(color, {x, y}, {w, h}, thickness);
+    }
+
+    void J2D::DrawLine(const Color3& color, float x, float y, float w, float h, float thickness) {
+        J2D::DrawLine({color.r, color.g, color.b, 255}, x, y, w, h, thickness);
+    }
+
+    void J2D::DrawGradientLine(const Color4& color1, const Color4& color2, const Vector2& A, const Vector2& B, float thickness) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.");
+
+        Vector2 vertices[] = {A, B};
+        GLfloat colors[8] = {color1.r / 255.f, color1.g / 255.f, color1.b / 255.f, color1.a / 255.f,
+                             color2.r / 255.f, color2.g / 255.f, color2.b / 255.f, color2.a / 255.f};
+
+        glEnableClientState(GL_COLOR_ARRAY);
+            glLineWidth(thickness);
+            glColorPointer(4,GL_FLOAT,sizeof(GL_FLOAT) * 4, colors);
+            glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+            glDrawArrays(GL_LINES, 0, 2);
+        glDisableClientState(GL_COLOR_ARRAY);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::DrawGradientLine(const Color3& color1, const Color3& color2, const Vector2& A, const Vector2& B, float thickness) {
+        J2D::DrawGradientLine({color1.r, color1.g, color1.b, 255}, {color2.r, color2.g, color2.b, 255}, A, B, thickness);
+    }
+    void DrawGradientLine(const Color4& color1, const Color4& color2, float x, float y, float w, float h, float thickness) {
+        J2D::DrawGradientLine(color1, color2, {x, y}, {w, h}, thickness);
+    }
+
+    void DrawGradientLine(const Color3& color1, const Color3& color2, float x, float y, float w, float h, float thickness) {
+        J2D::DrawGradientLine({color1.r, color1.g, color1.b, 255}, {color2.r, color2.g, color2.b, 255}, {x, y}, {w, h}, thickness);
+    }
+
+    void J2D::DrawPixel(const Color4& color, const Vector2& coordinates) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.");
+
+        Vector2 vertices[] = {coordinates};
+
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_LINES, 0, 1);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::DrawPixel(const Color3& color, const Vector2& coordinates) {
+        J2D::DrawPixel({color.r, color.g, color.b, 255}, coordinates);
+    }
+
+    void J2D::DrawPixel(const Color4& color, float x, float y) {
+        DrawPixel(color, {x, y});
+    }
+
+    void J2D::DrawPixel(const Color3& color, float x, float y) {
+        DrawPixel({color.r, color.g, color.b, 255}, {x, y});
+    }
+
+    void J2D::OutlineCircle(const Color4& color, const Vector2& center, float radius, unsigned int subdivisions, float thickness) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        float step = (2.f * M_PI) / (float) subdivisions;
+        std::vector<Vector2> vertices{};
+        GLfloat angle, x, y;
+
+        for (angle = 0.0f; angle < (2.f * M_PI); angle += step) {
+            x = radius * std::sin(angle) + center.x;
+            y = radius * std::cos(angle) + center.y;
+            vertices.emplace_back(x,y);
+        }
+
+        glLineWidth(thickness);
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices.data());
+        glDrawArrays(GL_LINE_LOOP, 0, vertices.size());
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::OutlineCircle(const Color3& color, const Vector2& center, float radius, unsigned int subdivisions, float thickness) {
+        J2D::OutlineCircle({color.r, color.g, color.b, 255}, center, radius, subdivisions, thickness);
+    }
+
+    void J2D::FillCircle(const Color4& color, const Vector2& center, float radius, unsigned int subdivisions) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        float step =  (2.f * M_PI) / (float) subdivisions;;
+        std::vector<Vector2> vertices{};
+        GLfloat angle, x, y;
+
+        for (angle = 0.0f; angle < (2.f * M_PI); angle += step)
+                x = radius * sin(angle) + center.x,
+                y = radius * cos(angle) + center.y,
+                vertices.push_back({x, y});
+
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices.data());
+        glDrawArrays(GL_TRIANGLE_FAN, 0, vertices.size());
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillCircle(const Color3& color, const Vector2& center, float radius, unsigned int subdivisions) {
+        J2D::FillCircle({color.r, color.g, color.b, 255}, center, radius, subdivisions);
+    }
+
+    void J2D::OutlineTriangle(const Color4& color, const Triangle2D& tri, float thickness) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {{tri.A.x, tri.A.y}, {tri.B.x, tri.B.y}, {tri.C.x, tri.C.y}};
+
+        glLineWidth(thickness);
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_LINE_LOOP, 0, 3);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::OutlineTriangle(const Color3& color, const Triangle2D& tri, float thickness) {
+        J2D::OutlineTriangle({color.r, color.g, color.b, 255}, tri, thickness);
+    }
+
+    void J2D::FillTriangle(const Color4& color, const Triangle2D& tri) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {{tri.A.x, tri.A.y}, {tri.B.x, tri.B.y}, {tri.C.x, tri.C.y}};
+
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_TRIANGLES, 0, 3);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillGradientTriangle(const Color4& a_color, const Color4& b_color, const Color4& c_color, const Triangle2D& tri) {
+        if (!inJ2D)
+            ERROR("Attempt to Render J2D element before J2D begin.")
+
+        Vector2 vertices[] = {{tri.A.x, tri.A.y}, {tri.B.x, tri.B.y}, {tri.C.x, tri.C.y}};
+        GLfloat colors[] = {a_color.r / 255.f, a_color.g / 255.f, a_color.b / 255.f, a_color.a / 255.f,b_color.r / 255.f,
+                            b_color.g / 255.f, b_color.b / 255.f, b_color.a / 255.f,c_color.r / 255.f, c_color.g / 255.f, c_color.b / 255.f,
+                            c_color.a / 255.f };
+
+        glEnableClientState(GL_COLOR_ARRAY);
+        glColorPointer(4, GL_FLOAT, sizeof(Color4), colors);
+        glVertexPointer(2, GL_FLOAT, sizeof(Vector2), vertices);
+        glDrawArrays(GL_TRIANGLES, 0, 3);
+        glDisableClientState(GL_COLOR_ARRAY);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J2D::FillGradientTriangle(const Color3& a_color, const Color3& b_color, const Color3& c_color, const Triangle2D& tri) {
+        J2D::FillGradientTriangle(Color4(a_color), Color4(b_color), Color4(c_color), tri);
+    }
+
+
+    void J2D::FillTriangle(const Color3& color, const Triangle2D& tri) {
+        J2D::FillTriangle({color.r, color.g, color.b, 255}, tri);
+    }
+
+    void J3D::Begin() {
+
+        //Get what the draw color was before we did anything.
+        glGetFloatv(GL_CURRENT_COLOR, oldColor);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+
+        wasDepthTestEnabled = false;
+        if (glIsEnabled(GL_DEPTH_TEST))
+            wasDepthTestEnabled = true,
+            glDisable(GL_DEPTH_TEST);
+
+        wasVertexArraysEnabled = false;
+        if (!glIsEnabled(GL_VERTEX_ARRAY))
+            wasVertexArraysEnabled = false,
+            glEnableClientState(GL_VERTEX_ARRAY);
+
+        wasTexture2DEnabled = true;
+        if (!glIsEnabled(GL_TEXTURE_2D))
+            wasTexture2DEnabled = false,
+            glEnable(GL_TEXTURE_2D);
+
+        // TODO: implement bool drawBackface as DrawString parameter.
+        wasCullFaceEnabled = false;
+        if (glIsEnabled(GL_CULL_FACE))
+            wasCullFaceEnabled = true,
+            glDisable(GL_CULL_FACE);
+
+        wasBlendEnabled = true;
+        if (!glIsEnabled(GL_BLEND))
+            wasBlendEnabled = false,
+            glEnable(GL_BLEND),
+            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+
+
+        if (!inJ2D)
+            inJ3D = true;
+        else { ERROR("Attempt to Begin J3D inside of J2D context.")}
+    }
+
+    void J3D::End() {
+        if (wasDepthTestEnabled)
+            glEnable(GL_DEPTH_TEST);
+
+        if (!wasVertexArraysEnabled)
+            glDisableClientState(GL_VERTEX_ARRAY);
+
+        if (wasTexture2DEnabled)
+            glDisable(GL_TEXTURE_2D);
+
+        if (!wasBlendEnabled)
+            glDisable(GL_BLEND);
+
+        if (wasCullFaceEnabled)
+            glEnable(GL_CULL_FACE);
+
+        //Put the draw color back how it was before.
+        glColor4f(oldColor[0], oldColor[1], oldColor[2], oldColor[3]);
+
+        inJ3D = false;
+    }
+
+    void J3D::DrawLine(const Color4& color, const Vector3& A, const Vector3& B, float thickness) {
+        if (!inJ3D)
+            ERROR("Attempt to Render J3D element before J3D begin.")
+
+        Vector3 vertices[] = {A, B};
+
+        glLineWidth(thickness);
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+        glVertexPointer(3, GL_FLOAT, sizeof(Vector3), vertices);
+        glDrawArrays(GL_LINES, 0, 2);
+        glColor4f(baseColor[0], baseColor[1], baseColor[2], baseColor[3]);
+    }
+
+    void J3D::DrawLine(const Color3& color, const Vector3& A, const Vector3& B, float thickness) {
+        J3D::DrawLine({color.r, color.g, color.b, 255}, A, B, thickness);
+    }
+}
--- a/src/JGL/Color3.cpp
+++ b/src/JGL/Color3.cpp
@@ -0,0 +1,19 @@
+#include <JGL/Color3.h>
+
+namespace JGL
+{
+
+    u8 Color3::RedChannel() const { return r; }
+
+    u8 Color3::GreenChannel() const { return g; }
+
+    u8 Color3::BlueChannel() const { return b; }
+
+    float Color3::RedChannelNormalized() const { return static_cast<float>(r) / 255.f;}
+
+    float Color3::BlueChannelNormalized() const { return static_cast<float>(b) / 255.f;}
+
+    float Color3::GreenChannelNormalized() const { return static_cast<float>(g) / 255.f;}
+
+    Color3::Color3(u8 R, u8 G, u8 B) : r(R), g(G), b(B) {}
+}
--- a/src/JGL/Color4.cpp
+++ b/src/JGL/Color4.cpp
@@ -0,0 +1,27 @@
+#include <JGL/Color4.h>
+
+namespace JGL
+{
+
+    Color4::Color4(u8 red, u8 green, u8 blue, u8 alpha) : r(red), g(green), b(blue), a(alpha) {}
+
+    Color4::Color4(const Color3 &color3, u8 alpha) {r = color3.r; g = color3.g; b = color3.b; a = alpha;}
+
+    Color4 Color4::FromColor3(const Color3 &color3, u8 alpha) {return Color4(color3, alpha);}
+
+    u8 Color4::RedChannel() const { return r;}
+
+    u8 Color4::GreenChannel() const { return g;}
+
+    u8 Color4::BlueChannel() const {return b;}
+
+    u8 Color4::AlphaChannel() const {return a;}
+
+    float Color4::RedChannelNormalized() const {return static_cast<float>(r/255.f); }
+
+    float Color4::GreenChannelNormalized() const {return static_cast<float>(g/255.f); }
+
+    float Color4::BlueChannelNormalized() const {return static_cast<float>(b/255.f); }
+
+    float Color4::AlphaChannelNormalized() const {return static_cast<float>(a/255.f); }
+}
--- a/src/JGL/Font.cpp
+++ b/src/JGL/Font.cpp
@@ -0,0 +1,165 @@
+
+#include <vector>
+#include <string>
+#include <iostream>
+#include <glad/glad.h>
+
+#if __linux__
+#include <freetype2/ft2build.h>
+#include FT_FREETYPE_H
+#include FT_OUTLINE_H
+#include <JGL/FontCache.h>
+
+#endif
+#if _WIN32
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#endif
+
+#include <JGL/Font.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)
+            throw std::runtime_error("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 new 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.c_str(), 0, &face)) {
+            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
+            throw new 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) {
+
+        // TODO: Check if a font of that size is in the cache and if so use the info from that because this is sloooooooooooooow.
+        // That'll make it go vroom vroom.
+        // TODO: Work in-progress implementation unfortunately.
+        // This is likely returning slightly incorrect results for likely several reasons.
+        // Half-ass solution for now ~ dawsh.
+
+        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;
+        }
+
+        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;
+    }
+
+
+}
--- a/src/JGL/JGL.cpp
+++ b/src/JGL/JGL.cpp
@@ -1,308 +0,0 @@
-//
-// Created by dawsh on 1/17/24.
-//
-
-#include <vector>
-#include <glad/glad.h>
-#include <JGL/JGL.h>
-#include <freetype2/ft2build.h>
-#include FT_FREETYPE_H
-#include <JGL/Color3.h>
-#include <iostream>
-
-GLuint program;
-
-namespace JGL
-{
-    FT_Face face;
-    FT_Library ft;
-
-    using namespace J3ML;
-
-    bool InitTextEngine() {
-        constexpr u32 default_font_size = 16;
-        if (FT_Init_FreeType(&ft))
-        {
-            std::cout << "Error::FREETYPE: " << std::endl;
-            return false;
-        }
-
-        if (FT_New_Face(ft, "assets/fonts/FreeSans.ttf", 0, &face))
-        {
-            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
-            return false;
-        }
-
-        return true;
-    }
-
-    namespace J2D
-    {
-        void FillRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size) {
-            auto vp_pos = pos;
-            auto vp_size = size;
-            glBegin(GL_QUADS);
-            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
-            glVertex2f(vp_pos.x, vp_pos.y);
-            glVertex2f(vp_pos.x, vp_pos.y + vp_size.y);
-            glVertex2f(vp_pos.x + vp_size.x, vp_pos.y + vp_size.y);
-            glVertex2f(vp_pos.x + vp_size.x, vp_pos.y);
-            glEnd();
-        }
-
-        void OutlineRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size, float thickness) {
-            auto vp_pos = pos;
-            auto vp_size = size;
-            glBegin(GL_LINE_LOOP);
-            glLineWidth(thickness);
-            glColor3f(color.r, color.g, color.b);
-            glVertex2f(vp_pos.x, vp_pos.y);
-            glVertex2f(vp_pos.x, vp_pos.y + vp_size.y);
-            glVertex2f(vp_pos.x + vp_size.x, vp_pos.y + vp_size.y);
-            glVertex2f(vp_pos.x + vp_size.x, vp_pos.y);
-            glEnd();
-        }
-
-        void DrawLine2D(const Color3 &color, const Vector2 &A, const Vector2 &B, float thickness) {
-            auto vp_a = A;
-            auto vp_b = B;
-
-            glBegin(GL_LINES);
-            glLineWidth(thickness);
-            glColor3f(color.r, color.g, color.b);
-            glVertex2f(vp_a.x, vp_a.y);
-            glVertex2f(vp_b.x, vp_b.y);
-            glEnd();
-
-        }
-
-        void DrawLine2D(const Color3 &color, float x, float y, float w, float h, float thickness) {
-            DrawLine2D(color, {x, y}, {w, h}, thickness);
-        }
-
-        void DrawPixel2D(const Color3 &color, float x, float y) {
-            DrawPixel2D(color, {x, y});
-        }
-
-        void DrawPixel2D(const Color3 &color, const Vector2 &coordinates) {
-            auto vp_pos = coordinates;
-            glBegin(GL_POINT);
-            glColor3f(color.r, color.g, color.b);
-            glVertex2f(vp_pos.x, vp_pos.y);
-            glEnd();
-        }
-
-        void
-        OutlineCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions, float thickness) {
-            glBegin(GL_LINE_LOOP);
-            GLfloat angle;
-            glColor3f(color.r, color.g, color.b);
-            float step = (2.f * M_PI) / (float)subdivisions;
-            for (angle = 0.0f; angle < (2.f * M_PI); angle += step)
-            {
-                GLfloat x = radius * sin(angle);
-                GLfloat y = radius * cos(angle);
-                x += center.x;
-                y += center.y;
-                glVertex2f(x, y);
-            }
-            glEnd();
-        }
-
-        void FillCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions) {
-            glBegin(GL_POLYGON);
-            GLfloat angle;
-            glColor3f(color.r, color.g, color.b);
-            float step = (2.f * M_PI) / (float)subdivisions;
-            for (angle = 0.0f; angle < (2.f * M_PI); angle += step)
-            {
-                GLfloat x = radius * sin(angle);
-                GLfloat y = radius * cos(angle);
-                x += center.x;
-                y += center.y;
-                glVertex2f(x, y);
-            }
-            glEnd();
-        }
-
-        void OutlineTriangle2D(const Color3& color, const Triangle2D& tri)
-        {
-            glBegin(GL_LINE_LOOP);
-            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
-            glVertex2f(tri.A.x, tri.A.y);
-            glVertex2f(tri.B.x, tri.B.y);
-            glVertex2f(tri.C.x, tri.C.y);
-            glEnd();
-        }
-
-        void FillTriangle2D(const Color3& color, const Triangle2D& tri)
-        {
-            glBegin(GL_LINE_LOOP);
-            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
-            glVertex2f(tri.A.x, tri.A.y);
-            glVertex2f(tri.B.x, tri.B.y);
-            glVertex2f(tri.C.x, tri.C.y);
-            glEnd();
-        }
-
-        void DrawString2D(const Color3& color, std::string text, float x, float y, float scale, u32 size) {
-            glUseProgram(0); // Fixed-function pipeline.
-
-            GLfloat currentColor[4];
-            glGetFloatv(GL_CURRENT_COLOR, currentColor);
-
-            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
-
-            FT_Set_Pixel_Sizes(face, 0, size);
-
-            GLuint textures[text.size()];
-            for (int i = 0; i < text.length(); i++)
-            {
-                if (FT_Load_Char(face, text.c_str()[i], FT_LOAD_RENDER))
-                    continue;
-
-                FT_GlyphSlot g = face->glyph;
-                glEnable(GL_BLEND);
-                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-                glActiveTexture(GL_TEXTURE0);
-                glEnable(GL_TEXTURE_2D);
-                glGenTextures(1, &textures[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 w = g->bitmap.width * scale;
-                float h = g->bitmap.rows * scale;
-
-                glBegin(GL_TRIANGLES);
-
-                glTexCoord2f(0, 0);
-                glVertex2f(x2, y2);
-
-                glTexCoord2f(0, 1);
-                glVertex2f(x2, y2 + h);
-
-                glTexCoord2f(1, 1);
-                glVertex2f(x2 + w, y2 + h);
-
-                glTexCoord2f(0, 0);
-                glVertex2f(x2, y2);
-
-                glTexCoord2f(1, 1);
-                glVertex2f(x2 + w, y2 + h);
-
-                glTexCoord2f(1, 0);
-                glVertex2f(x2 + w, y2);
-
-                glEnd();
-
-                x += (g->advance.x >> 6) * scale;
-                y += (g->advance.y >> 6) * scale;
-            }
-            for (auto& t : textures)
-                glDeleteTextures(1, &t);
-
-            glDisable(GL_TEXTURE_2D);
-            glDisable(GL_BLEND);
-            glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
-            glColor4f(currentColor[0], currentColor[1], currentColor[2], currentColor[3]); //Set draw color back to whatever it was before.
-        }
-    }
-
-
-    namespace J3D
-    {
-        void DrawLine3D(const Color3& color, const Vector3& A, const Vector3& B, float thickness)
-        {
-            glBegin(GL_LINES);
-            glLineWidth(thickness);
-            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
-            glVertex3f(A.x, A.y, A.z);
-            glVertex3f(B.x, B.y, B.z);
-            glEnd();
-        }
-
-        void DrawString3D(const Color3& color, const std::string& text, const Vector3& pos, float scale, u32 size)
-        {
-            float x = pos.x;
-            float y = pos.y;
-            float z = pos.z;
-            GLfloat currentColor[4];
-            GLuint textures[text.size()];
-            glGetFloatv(GL_CURRENT_COLOR, currentColor);
-            glUseProgram(0); // Fixed-function pipeline.
-            glColor4f(color.r, color.g, color.b, 1.0f);
-
-            FT_Set_Pixel_Sizes(face, 0, size);
-
-            //for (c = text.c_str(); *c; c++)
-            for (int i = 0; i < text.length(); i++)
-            {
-                if (FT_Load_Char(face, text.c_str()[i], FT_LOAD_RENDER))
-                    continue;
-
-                FT_GlyphSlot g = face->glyph;
-                glEnable(GL_BLEND);
-                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-                glActiveTexture(GL_TEXTURE0);
-                glEnable(GL_TEXTURE_2D);
-                glGenTextures(1, &textures[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 (auto& t : textures)
-                glDeleteTextures(1, &t);
-            glDisable(GL_TEXTURE_2D);
-            glDisable(GL_BLEND);
-            glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
-            glColor4f(currentColor[0], currentColor[1], currentColor[2], currentColor[3]); //Set draw color back to whatever it was before.
-        }
-
-    }
-}
--- a/src/JGL/TextRendering.cpp
+++ b/src/JGL/TextRendering.cpp
@@ -0,0 +1,248 @@
+#include <JGL/JGL.h>
+
+
+#if __linux__
+#include <freetype2/ft2build.h>
+#include FT_FREETYPE_H
+#include FT_OUTLINE_H
+#include "jlog/jlog.hpp"
+
+#endif
+#if _WIN32
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#endif
+
+#include <JGL/Font.h>
+#include <JGL/FontCache.h>
+
+namespace JGL {
+
+    void PurgeFontCache() {
+        fontCache.purgeCache();
+    }
+
+    void J2D::DrawString(const Color4& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font) {
+        glUseProgram(0); // Fixed-function pipeline.
+
+        // Offset by height to render at "correct" location.
+        y += size;
+
+        CachedFont* cachedFont = fontCache.getFont(size, font.index);
+
+        //Set up the regular font.
+        //for (const auto &f : Font::GetLoadedFonts())
+        //    if (f.index == font.index)
+        //        font = f;
+
+
+
+        if (font.face == nullptr)
+            return;
+
+        FT_Set_Pixel_Sizes(font.face, 0, size);
+
+        //If the font doesn't exist in the cache yet.
+        if (!cachedFont) {
+            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 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);
+            }
+        }
+
+        glColor4f(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f);
+
+        //Texture parameters are restored when the texture is bound
+        glBindTexture(GL_TEXTURE_2D, *cachedFont->getTexture());
+
+        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(GLfloat) * 2, vertices.data());
+        glTexCoordPointer(2, GL_FLOAT, sizeof(GLfloat) * 2, texcoords.data());
+        glDrawArrays(GL_TRIANGLES, 0, vertices.size() * 6);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glColor4f(1, 1, 1, 1);
+    }
+
+    void J2D::DrawString(const Color3& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font) {
+        J2D::DrawString(Color4::FromColor3(color, 255), text, x, y, scale, size, font);
+    }
+
+    void J3D::DrawString(const Color3& color, const std::string& text, const Vector3& pos, const Vector3& angle, float scale, u32 size, const Font& font) {
+        //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 : Font::GetLoadedFonts())
+            //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
+        glColor4f(1, 1, 1, 1);
+        glPopMatrix();
+    }
+}
Author	SHA1	Message	Date
Redacted	9dda4bebc5	Make measure string go brrrrrrr All checks were successful Run ReCI Build Test / Explore-Gitea-Actions (push) Successful in 4m9s Details	2024-07-31 12:01:57 -04:00
Redacted	a5bfb4972a	Fill quad All checks were successful Run ReCI Build Test / Explore-Gitea-Actions (push) Successful in 1m32s Details	2024-07-30 23:37:47 -04:00
Redacted	4348f2708a	Gradient triangle All checks were successful Run ReCI Build Test / Explore-Gitea-Actions (push) Successful in 1m32s Details	2024-07-30 15:49:13 -04:00
maxine	32dd2b54ca	incorporate builddeps.reci All checks were successful Run ReCI Build Test / Explore-Gitea-Actions (push) Successful in 1m40s Details	2024-07-29 19:30:23 -04:00
maxine	e8b601aa25	install build deps reci script Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 45s Details	2024-07-29 19:29:11 -04:00
maxine	d5fd3e1a49	reci lua edition Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 48s Details	2024-07-29 19:24:55 -04:00
Redacted	f593a0beac	Cleanup & Update ReTexture. Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m29s Details	2024-07-19 17:16:38 -04:00
Redacted	0b7af6fd31	Cleanup Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m46s Details	2024-07-19 01:34:43 -04:00
Redacted	eca4309e85	DrawSprite Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m21s Details	2024-07-18 22:24:19 -04:00
josh	4be97f52d9	Minor documentation additions. Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m19s Details	2024-07-18 14:51:19 -04:00
Redacted	613a13618c	Merge branch 'master' of https://git.redacted.cc/Josh/JGL Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Has been cancelled Details	2024-07-18 14:49:19 -04:00
Redacted	4150c93c85	Make it like, go faster.	2024-07-18 14:49:15 -04:00
josh	9dee59fd45	Merge remote-tracking branch 'origin/master' Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m32s Details	2024-07-18 14:04:16 -04:00
josh	b6b2ca1bfe	Remove old LoadFont function.	2024-07-18 14:04:11 -04:00
josh	4eca3311c8	Fix text being shifted up by it's own height. Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Has been cancelled Details	2024-07-18 14:01:58 -04:00
Redacted	54711355c4	Merge branch 'master' of https://git.redacted.cc/Josh/JGL Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m29s Details	2024-07-18 14:01:14 -04:00
Redacted	8bddf3e0a7	Update JGL.cpp Fix glBlend always being enabled because I'm an idiot	2024-07-18 14:00:57 -04:00
josh	26d17dae38	Move glPixelStore call inside of InitTextEngine so users don't need to call it. Also adjusted Color3 and Color4, more work coming soon. Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 2m18s Details	2024-07-18 13:45:11 -04:00
Redacted	4ff8d8ff07	Update Font.cpp Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m33s Details fix memleak	2024-07-17 16:52:31 -04:00
josh	162732e4b7	Fix Dereference Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m24s Details	2024-07-17 16:11:36 -04:00
josh	289157ab8a	Fiddle with README some Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 2m37s Details	2024-07-17 15:54:39 -04:00
josh	3a658b1096	Testing MeasureString with underlaid box. But it appears to be offset by half-height? Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 4m39s Details	2024-07-17 15:19:38 -04:00
josh	480502f89e	Implement Font::MeasureString (TODO: double check!!) Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m53s Details	2024-07-17 14:59:34 -04:00
josh	d28f680cd0	Half-baked Font class implementation Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m29s Details	2024-07-16 14:54:47 -04:00
josh	2d1e42c23b	Half-ass Font class implementation Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m30s Details	2024-07-16 14:39:44 -04:00
Redacted	abd691b648	uhhhhhhhhhh yeeeeeeea Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m28s Details	2024-07-16 14:19:39 -04:00
Redacted	e261b610c2	Update TextRendering.cpp Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 5m24s Details Reset the Texture after drawing text.	2024-07-15 11:50:27 -04:00
ori_sky	8625c52ee9	Implement optimizations for 2D text rendering (#23 ) Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m51s Details The following patches are included: ## J2D: Rewrite text rendering This patch rewrites text rendering for `J2D::DrawString` to now construct a texture atlas for all ASCII-range glyphs in the FT font face, instead of constructing a texture for every glyph. This improves text rendering performance for several reasons: 1. Binding textures is relatively expensive as the GPU is required to do a context switch for internal data like texture parameters, and also cannot optimize for accesses to the same texture across draw calls. This patch removes the need to call `glBindTexture` more than once per call to `J2D::DrawString`. 2. As a consequence of the above, all glyphs for a given string can now be rendered in a single call to `glDrawArrays`. This is done by storing the cached texture coordinates on `CachedGlyph` and constructing a full array of vertices and texture coordinates for the entire string at once, resulting in only /one/ set of client-to-device attribute uploads and only one draw call, instead of being required to upload attribute data for each glyph separately. ## FontCache: Use map for efficient glyph lookup This patch updates `CachedFont` to now use an `std::map` for cached glyphs, instead of an `std::vector`. `std::map` allows O(log n) lookup, whereas `std::vector` only allows O(n) lookup. Note: `std::unordered_map` technically has better lookup complexity here, with amortized O(1) lookup. However, hashmaps have a higher inherent overhead than red-black trees so this would only be viable when going above around 1000 entries, which should never happen here for ASCII glyphs. Co-authored-by: Ori Sky Farrell <ori.sky.farrell+git@gmail.com> Reviewed-on: #23 Co-authored-by: ori_sky <redacted@ori.mx> Co-committed-by: ori_sky <redacted@ori.mx>	2024-07-15 11:38:20 -04:00
Redacted	74a4705e44	Fix windows being picky. Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m28s Details	2024-07-12 13:14:24 -04:00
Redacted	ae327b96a5	Cleanup Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 2m23s Details	2024-07-12 01:47:49 -04:00
Redacted	eb3e037c96	Gradient FillRect + GradientLine Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m31s Details	2024-07-10 20:00:49 -04:00
josh	672a363c53	Fluff the README a little. Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m30s Details	2024-07-10 15:17:37 -04:00
Redacted	6a16c3f87e	Update main.cpp Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m31s Details	2024-07-10 15:05:21 -04:00
josh	23d3d1f378	Implement stub documentation & small refactors on J2D namespace Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Has been cancelled Details	2024-07-10 15:05:46 -04:00
Redacted	523806f9ef	Rounded Fill Rect Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m49s Details	2024-07-10 14:49:37 -04:00
Redacted	d118ae2f8e	Accept Color3 & Color4 Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 6m0s Details	2024-07-09 15:10:26 -04:00
Redacted	5979ae41fc	Performance optimization Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 2m41s Details	2024-07-08 23:13:45 -04:00
Redacted	652626b2e4	text Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m20s Details	2024-07-08 19:12:16 -04:00
Redacted	a8145cb926	Update JGL.cpp Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m22s Details Setting glLineWidth inside of glBegin causes error 1282.	2024-07-07 19:59:10 -04:00
Redacted	0914b496e7	Refactor & Fix inverted text & More Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m37s Details	2024-07-07 17:10:51 -04:00
Redacted	c62b58aa16	Font cache Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m34s Details	2024-07-06 22:51:25 -04:00
maxine	11ce9ac5fe	ReCI test Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m18s Details	2024-07-05 11:44:34 -04:00
maxine	7310825ddd	ReCI test Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m28s Details	2024-07-05 11:38:48 -04:00
maxine	513dc1e332	fixed syntax error in reci script Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 1m2s Details	2024-07-05 10:56:43 -04:00
maxine	63bbb8794e	Wrote local ReCI script for JGL Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 39s Details	2024-07-05 10:54:59 -04:00
maxine	178f328728	ReCI test Some checks failed Run ReCI Build Test / Explore-Gitea-Actions (push) Failing after 58s Details	2024-07-05 09:35:51 -04:00
maxine	1c74ee9c71	Add ReCI build test	2024-07-05 09:30:20 -04:00
Redacted	608e9e29f5	Support for multiple fonts	2024-07-05 05:31:25 -04:00
Redacted	c53fa52f6f	FreeType2	2024-06-29 15:07:02 -04:00
Redacted	7fa75cac54	initial	2024-06-29 12:37:16 -04:00
Redacted	d5f9eaa5a8	Update CMakeLists.txt	2024-06-26 23:30:40 -04:00
				`@@ -0,0 +1 @@`
				`Main:new("Install build dependencies", "apt-get install -yq libgl1-mesa-dev libfreetype-dev")`