Latest ReWindow

Fixed a bug that would sometimes cause rendering text after rendering an alpha-masked sprite to be invisible.

CMakeLists.txt

@@ -17,7 +17,7 @@ include(cmake/CPM.cmake)
 
 CPMAddPackage(
         NAME mcolor
-        URL https://git.redacted.cc/maxine/mcolor/archive/Prerelease-4.zip
+        URL https://git.redacted.cc/maxine/mcolor/archive/Prerelease-5.zip
 )
 
 CPMAddPackage(
@@ -27,7 +27,7 @@ CPMAddPackage(
 
 CPMAddPackage(
         NAME ReWindow
-        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-26.zip
+        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-31.zip
 )
 
 CPMAddPackage(
@@ -61,8 +61,8 @@ 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 HEADERS "include/*.h" "include/*.hpp"            )
+file(GLOB_RECURSE SOURCES "src/*.c" "src/*.cpp" "src/internals/*.h")
 
 find_package(OpenGL REQUIRED)
 

assets/models/cone.obj

@@ -0,0 +1,164 @@
+# Blender v3.6.4 OBJ File: ''
+# www.blender.org
+o Cone
+v 0.000000 -1.000000 -1.000000
+v 0.195090 -1.000000 -0.980785
+v 0.382683 -1.000000 -0.923880
+v 0.555570 -1.000000 -0.831470
+v 0.707107 -1.000000 -0.707107
+v 0.831470 -1.000000 -0.555570
+v 0.923880 -1.000000 -0.382683
+v 0.980785 -1.000000 -0.195090
+v 1.000000 -1.000000 0.000000
+v 0.980785 -1.000000 0.195090
+v 0.923880 -1.000000 0.382683
+v 0.831470 -1.000000 0.555570
+v 0.707107 -1.000000 0.707107
+v 0.555570 -1.000000 0.831470
+v 0.382683 -1.000000 0.923880
+v 0.195090 -1.000000 0.980785
+v 0.000000 -1.000000 1.000000
+v -0.195090 -1.000000 0.980785
+v -0.382683 -1.000000 0.923880
+v -0.555570 -1.000000 0.831470
+v -0.707107 -1.000000 0.707107
+v -0.831470 -1.000000 0.555570
+v -0.923880 -1.000000 0.382683
+v -0.980785 -1.000000 0.195090
+v -1.000000 -1.000000 0.000000
+v -0.980785 -1.000000 -0.195090
+v -0.923880 -1.000000 -0.382683
+v -0.831470 -1.000000 -0.555570
+v -0.707107 -1.000000 -0.707107
+v -0.555570 -1.000000 -0.831470
+v -0.382683 -1.000000 -0.923880
+v -0.195090 -1.000000 -0.980785
+v 0.000000 1.000000 0.000000
+vt 0.250000 0.490000
+vt 0.250000 0.250000
+vt 0.296822 0.485388
+vt 0.341844 0.471731
+vt 0.383337 0.449553
+vt 0.419706 0.419706
+vt 0.449553 0.383337
+vt 0.471731 0.341844
+vt 0.485388 0.296822
+vt 0.490000 0.250000
+vt 0.485388 0.203178
+vt 0.471731 0.158156
+vt 0.449553 0.116663
+vt 0.419706 0.080294
+vt 0.383337 0.050447
+vt 0.341844 0.028269
+vt 0.296822 0.014612
+vt 0.250000 0.010000
+vt 0.203178 0.014612
+vt 0.158156 0.028269
+vt 0.116663 0.050447
+vt 0.080294 0.080294
+vt 0.050447 0.116663
+vt 0.028269 0.158156
+vt 0.014612 0.203178
+vt 0.010000 0.250000
+vt 0.014612 0.296822
+vt 0.028269 0.341844
+vt 0.050447 0.383337
+vt 0.080294 0.419706
+vt 0.116663 0.449553
+vt 0.158156 0.471731
+vt 0.796822 0.014612
+vt 0.514612 0.203178
+vt 0.703178 0.485388
+vt 0.203178 0.485388
+vt 0.750000 0.490000
+vt 0.796822 0.485388
+vt 0.841844 0.471731
+vt 0.883337 0.449553
+vt 0.919706 0.419706
+vt 0.949553 0.383337
+vt 0.971731 0.341844
+vt 0.985388 0.296822
+vt 0.990000 0.250000
+vt 0.985388 0.203178
+vt 0.971731 0.158156
+vt 0.949553 0.116663
+vt 0.919706 0.080294
+vt 0.883337 0.050447
+vt 0.841844 0.028269
+vt 0.750000 0.010000
+vt 0.703178 0.014612
+vt 0.658156 0.028269
+vt 0.616663 0.050447
+vt 0.580294 0.080294
+vt 0.550447 0.116663
+vt 0.528269 0.158156
+vt 0.510000 0.250000
+vt 0.514612 0.296822
+vt 0.528269 0.341844
+vt 0.550447 0.383337
+vt 0.580294 0.419706
+vt 0.616663 0.449553
+vt 0.658156 0.471731
+s off
+f 1/1 33/2 2/3
+f 2/3 33/2 3/4
+f 3/4 33/2 4/5
+f 4/5 33/2 5/6
+f 5/6 33/2 6/7
+f 6/7 33/2 7/8
+f 7/8 33/2 8/9
+f 8/9 33/2 9/10
+f 9/10 33/2 10/11
+f 10/11 33/2 11/12
+f 11/12 33/2 12/13
+f 12/13 33/2 13/14
+f 13/14 33/2 14/15
+f 14/15 33/2 15/16
+f 15/16 33/2 16/17
+f 16/17 33/2 17/18
+f 17/18 33/2 18/19
+f 18/19 33/2 19/20
+f 19/20 33/2 20/21
+f 20/21 33/2 21/22
+f 21/22 33/2 22/23
+f 22/23 33/2 23/24
+f 23/24 33/2 24/25
+f 24/25 33/2 25/26
+f 25/26 33/2 26/27
+f 26/27 33/2 27/28
+f 27/28 33/2 28/29
+f 28/29 33/2 29/30
+f 29/30 33/2 30/31
+f 30/31 33/2 31/32
+f 16/33 24/34 32/35
+f 31/32 33/2 32/36
+f 32/36 33/2 1/1
+f 32/35 1/37 2/38
+f 2/38 3/39 4/40
+f 4/40 5/41 6/42
+f 6/42 7/43 8/44
+f 8/44 9/45 10/46
+f 10/46 11/47 12/48
+f 12/48 13/49 14/50
+f 14/50 15/51 16/33
+f 16/33 17/52 18/53
+f 18/53 19/54 20/55
+f 20/55 21/56 22/57
+f 22/57 23/58 24/34
+f 24/34 25/59 26/60
+f 26/60 27/61 28/62
+f 28/62 29/63 30/64
+f 30/64 31/65 32/35
+f 32/35 2/38 8/44
+f 2/38 4/40 8/44
+f 4/40 6/42 8/44
+f 8/44 10/46 16/33
+f 10/46 12/48 16/33
+f 12/48 14/50 16/33
+f 16/33 18/53 24/34
+f 18/53 20/55 24/34
+f 20/55 22/57 24/34
+f 24/34 26/60 32/35
+f 26/60 28/62 32/35
+f 28/62 30/64 32/35
+f 32/35 8/44 16/33

assets/models/cube.amo

@@ -0,0 +1,46 @@
+ao Cube 1
+v 8
+1.000000 1.000000 1.000000
+1.000000 1.000000 -1.000000
+1.000000 -1.000000 1.000000
+1.000000 -1.000000 -1.000000
+-1.000000 1.000000 1.000000
+-1.000000 1.000000 -1.000000
+-1.000000 -1.000000 1.000000
+-1.000000 -1.000000 -1.000000
+vt 14
+0.625000 0.500000
+0.875000 0.500000
+0.875000 0.750000
+0.625000 0.750000
+0.375000 0.750000
+0.625000 1.000000
+0.375000 1.000000
+0.375000 0.000000
+0.625000 0.000000
+0.625000 0.250000
+0.375000 0.250000
+0.125000 0.500000
+0.375000 0.500000
+0.125000 0.750000
+vn 6
+0.000000 0.000000 1.000000
+0.000000 -1.000000 0.000000
+-1.000000 0.000000 0.000000
+0.000000 0.000000 -1.000000
+1.000000 0.000000 0.000000
+0.000000 1.000000 0.000000
+f 12
+2 0 0 0 1 0 4 2 0 
+7 3 1 3 4 1 2 3 1 
+5 5 2 7 6 2 6 7 2 
+7 8 3 5 9 3 1 10 3 
+3 11 4 1 12 4 0 4 4 
+1 13 5 5 12 5 4 0 5 
+2 0 0 4 1 0 6 2 0 
+7 3 1 2 4 1 6 3 1 
+5 5 2 6 6 2 4 7 2 
+7 8 3 1 9 3 3 10 3 
+3 11 4 0 12 4 2 4 4 
+1 13 5 4 12 5 0 0 5 
+end

assets/models/cube.obj

@@ -0,0 +1,38 @@
+# Blender v3.6.4 OBJ File: ''
+# www.blender.org
+o Cube
+v 1.000000 1.000000 -1.000000
+v 1.000000 -1.000000 -1.000000
+v 1.000000 1.000000 1.000000
+v 1.000000 -1.000000 1.000000
+v -1.000000 1.000000 -1.000000
+v -1.000000 -1.000000 -1.000000
+v -1.000000 1.000000 1.000000
+v -1.000000 -1.000000 1.000000
+vt 0.875000 0.500000
+vt 0.625000 0.750000
+vt 0.625000 0.500000
+vt 0.375000 1.000000
+vt 0.375000 0.750000
+vt 0.625000 0.000000
+vt 0.375000 0.250000
+vt 0.375000 0.000000
+vt 0.375000 0.500000
+vt 0.125000 0.750000
+vt 0.125000 0.500000
+vt 0.625000 0.250000
+vt 0.875000 0.750000
+vt 0.625000 1.000000
+s off
+f 5/1 3/2 1/3
+f 3/2 8/4 4/5
+f 7/6 6/7 8/8
+f 2/9 8/10 6/11
+f 1/3 4/5 2/9
+f 5/12 2/9 6/7
+f 5/1 7/13 3/2
+f 3/2 7/14 8/4
+f 7/6 5/12 6/7
+f 2/9 4/5 8/10
+f 1/3 3/2 4/5
+f 5/12 1/3 2/9

include/JGL/JGL.h

@@ -26,29 +26,44 @@
 #include <J3ML/Geometry/Sphere.hpp>
 #include <J3ML/Geometry/Capsule.hpp>
 #include <J3ML/Geometry/Triangle2D.hpp>
-#include <J3ML/J3ML.hpp>
 #include <JGL/types/Font.h>
+#include <JGL/types/VRamList.h>
+#include <JGL/types/VertexArray.h>
+
+// Fonts that are included by default.
+namespace JGL::Fonts {
+    void Init();
+    // Built in fonts.
+    inline Font Jupiteroid;
+}
+
+// Simple shapes that are pre-computed and used in some draw functions.
+namespace JGL::ShapeCache {
+    inline VRamList* cube_vertex_data = nullptr;
+    inline VRamList* cube_index_data = nullptr;
+    inline VRamList* cube_normal_data = nullptr;
+    // Facing straight out.
+    inline VRamList* j2d_default_normal_data = nullptr;
+    void Init();
+}
 
 /// OpenGL Wrapper for rendering 2D & 3D graphics in both a 2D and 3D context.
 namespace JGL {
     using namespace J3ML::LinearAlgebra;
     using namespace J3ML::Geometry;
 
-
     [[nodiscard]] bool Init(const Vector2& window_size, float fovY, float far_plane);
-
-    /// @param window_size
     void Update(const Vector2& window_size);
-
     inline void PurgeFontCache() { JGL::fontCache.purgeCache(); }
 
+
     std::array<GLfloat, 16> OpenGLPerspectiveProjectionRH(float fovY, float aspect, float z_near, float z_far);
 
-    /// Returns true if the graphics driver meets the requirements (GL Version & Extensions).
+    /// @returns true if the graphics driver meets the requirements (GL Version & Extensions).
     bool MeetsRequirements();
-    /// Drawing functions for primitive 2D Shapes.
 }
 
+/// Drawing functions for 2D objects.
 namespace JGL::J2D {
     /// Open a 2-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
     /// @note This call may not strictly be necessary on some setups, but is provided to keep the API constant.
@@ -64,7 +79,10 @@ namespace JGL::J2D {
 
     /// Provide a list of lights to be used in 2D space. Typically directly after J2D::Begin();
     /// 8 lights maximum for now. Some kind of light sorting will eventually be needed per j2d element.
-    void LightArray(LightBase*, size_t light_count);
+    void OptionalLights(const LightBase** lights, const size_t& light_count);
+
+    /// Specifies a light which is required for every object in the scene.
+    void RequiredLight(const LightBase* light);
 
     /// Plots a single pixel on the screen.
     /// @param color  A 3-or-4 channel color value. @see class Color3, class Color4
@@ -88,6 +106,13 @@ namespace JGL::J2D {
     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);
 
+    /// Plots several line segments defined by a series of points to be connected together.
+    /// @param color A 3-or-4 channel color value. @see classes Color3, Color4.
+    /// @param points pointer to the first point in the list.
+    /// @param point_count the number of points to draw.
+    /// @param thickness The width at which to render the line.
+    void DrawLines(const Color4& color, const Vector2* points, const size_t& point_count, float thickness = 1);
+
     /// Plots a line segment using a series of points separated by a given distance.
     /// @param color A 3-or-4 channel color value. @see classes Color3, Color4.
     /// @param A The starting point of the line segment.
@@ -336,7 +361,7 @@ namespace JGL::J2D {
     /// @param scale The value (in both axes) to scale the text by. Defaults to {1,1}.
     /// @param size The point-size at which to render the font out. Re-using the same point-size allows efficient glyph caching.
     /// @param font The font to use for rendering. @see Font.
-    void DrawString(const Color4& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font);
+    void DrawString(const Color4& color, const std::string& text, float x, float y, float scale, u32 size, const Font& font = Fonts::Jupiteroid);
 
 
     /// Draws an Arc (section of a circle) to the screen.
@@ -357,7 +382,7 @@ namespace JGL::J2D {
     void FillEllipse(const Color4& color, const Vector2& position, float radius_x, float radius_y, int subdivisions = 8);
 }
 
-/// Drawing functions for primitive 3D Shapes.
+/// Drawing functions for 3D objects.
 namespace JGL::J3D {
     /// A light for this 3D render that should never be culled out. up-to 8.
     /// The more you put here, The less we will solve for if you're also using LightArray.
@@ -365,7 +390,7 @@ namespace JGL::J3D {
     void RequiredLight(const LightBase* light);
 
     /// When each 3D object is drawn, We'll do our best to determine which lights would effect it the most and use those ones.
-    void LightArray(const LightBase** lights, const size_t& light_count);
+    void OptionalLights(const LightBase** lights, const size_t& light_count);
 
     /// Helper function to conveniently change the Field-Of-View.
     void ChangeFOV(float fov);
@@ -374,10 +399,9 @@ namespace JGL::J3D {
     void ChangeFarPlane(float far_plane);
 
     /// Open a 3-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
-    /// @note This call may not strictly be necessary on some setups, but is provided to keep the API constant.
     /// It is recommended to always open a JGL 3D context to render your content, then close when completed.
-    /// This keeps our code from, say, clobbering the OpenGL rendering context driving 2D content in between our calls.
-    void Begin();
+    /// @param two_pass Whether or not we'll use two-pass rendering for occlusion.
+    void Begin(bool two_pass = false);
 
     /// Closes a 3-D rendering context with the underlying graphics system (In this case&  by default OpenGL).
     /// @see Begin().
@@ -652,8 +676,9 @@ namespace JGL::J3D {
     /// @param font The font object to use when drawing.
     /// @param angle The orientation in 3D space.
     /// @param draw_back_face
-    void DrawString(const Color4& color, const std::string& text, const Vector3& pos, float scale, u32 size, const Font& font, const EulerAngleXYZ& angle = {0, 0, 0}, bool draw_back_face = false);
+    void DrawString(const Color4& color, const std::string& text, const Vector3& pos, float scale, u32 size, const Font& font = Fonts::Jupiteroid, const EulerAngleXYZ& angle = {0, 0, 0}, bool draw_back_face = false);
 
+    void DrawVertexArray(const Color4& color, const VertexArray& vertex_array, const Vector3& position);
     /// Draws a string of text in 3D space that is always facing the exact direction of the camera projection.
     void DrawBillboardString();
 

include/JGL/ShapeCache.h

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

include/JGL/types/Font.h

@@ -13,8 +13,6 @@ extern "C" typedef struct FT_LibraryRec_* FT_Library;
 
 namespace JGL
 {
-
-    //bool Init();
     bool InitTextEngine();
 
     /// A Font class implementation.
@@ -23,7 +21,8 @@ namespace JGL
     public:
         /// Default constructor does not initialize any members
         Font() = default;
-        Font(const std::filesystem::path& path);
+        explicit Font(const std::filesystem::path& path);
+        Font(const unsigned char* data, const size_t& size);
         /// Destructor handles freeing of the underlying asset handle.
         ~Font();
         static Font LoadTTF(const std::filesystem::path& filepath);
@@ -35,6 +34,6 @@ namespace JGL
         Vector2 MeasureString(const std::string& text, unsigned int ptSize);
     public:
         int index = 0;
-        FT_Face face;
+        FT_Face face = nullptr;
     };
 }

include/JGL/types/Light.h

@@ -11,18 +11,22 @@ namespace JGL {
     class SpotLight;
 }
 
+// TODO this can be consolidated.
 class JGL::LightBase {
 protected:
+    /* The 4th number represents whether the light is a positional light.
+     * In OpenGL, You can have positional lights, Like Point Lights or Spot Lights,
+     * Or global lights, Like the sun. */
     Vector4 position = {0, 0, 0, 1};
     Color4 ambient = {0, 0, 0, 0};
     Color4 diffuse = {0, 0, 0, 0};
     Color4 specular = {0, 0, 0, 0};
 
-    float constant_attenuation;
-    float linear_attenuation;
-    float quadratic_attenuation;
+    float constant_attenuation = 1;
+    float linear_attenuation = 0;
+    float quadratic_attenuation = 0;
 public:
-    [[nodiscard]] Vector3 GetPosition() const;
+    [[nodiscard]] Vector4 GetPosition() const;
     [[nodiscard]] Color4 GetAmbient() const;
     [[nodiscard]] Color4 GetDiffuse() const;
     [[nodiscard]] Color4 GetSpecular() const;
@@ -41,12 +45,13 @@ public:
 /// Omni-directional lights.
 class JGL::PointLight : public LightBase {
 public:
-    [[nodiscard]] float GetAttenuationAtPosition(const Vector3& pos) const override;
+    [[nodiscard]] float GetAttenuationAtPosition(const Vector3& pos) const final;
 public:
     PointLight(const Vector3& position, const Color4& ambient, const Color4& diffuse, const Color4& specular, float constant_attenuation = 1, float linear_attenuation = 0, float quadratic_attenuation = 0);
 };
 
 /// Lights which only effect things in a given cone.
+// TODO get attenuation at position for this.
 class JGL::SpotLight : public LightBase {
 protected:
     Matrix3x3 orientation;

include/JGL/types/Material.h

@@ -1,4 +1,19 @@
 /// A simple wrapper for OpenGL materials. Lets you set things such as the "shininess" of your elements.
-class Material {
 
+#include <Color4.hpp>
+#include <glad/glad.h>
+namespace JGL {
+    class Material;
+}
+class JGL::Material {
+public:
+    Color4 ambient_ref;
+    Color4 diffuse_ref;
+    Color4 specular_ref;
+    Color4 emission;
+    float shininess;
+public:
+    Material(const Color4& ambient_reflection, const Color4& diffuse_reflection, const Color4& specular_reflection, const Color4& light_emission, float& shine);
+    /// @param material Material to use.
+    static void SetActiveMaterial(const Material& material);
 };

include/JGL/types/RenderTarget.h

@@ -1,20 +1,21 @@
 #pragma once
+#include <vector>
 #include <glad/glad.h>
 #include <Color4.hpp>
 #include <Colors.hpp>
 #include <JGL/types/Enums.h>
-#include <J3ML/LinearAlgebra/Vector2.hpp>
+#include <J3ML/LinearAlgebra/Vector2i.hpp>
 
 namespace JGL {
     class RenderTarget;
-    class Texture; // Forward declare.
+    class Texture;
 }
 
+using J3ML::LinearAlgebra::Vector2i;
 class JGL::RenderTarget {
 private:
     Color4 clear_color{0,0,0,0};
-    /// "Size" in this sense is the "Renderable Area" because OpenGL textures behave strangely if they're not square.
-    Vector2 size{0, 0};
+    Vector2i size{0, 0};
     bool using_depth = false;
     bool texture_created_by_us = false;
     GLuint framebuffer_object = 0;
@@ -26,47 +27,97 @@ private:
     GLuint msaa_render_buffer = 0;
     void Erase();
 public:
+    /// @returns The Render Target currently in use by OpenGL.
+    /// @note Zero is the screen.
     static GLuint GetActiveGLFramebufferHandle();
+
+    /// Changes the Render Target that OpenGL will draw on.
+    /// @param render_target The new Render Target for OpenGL to draw on.
     static void SetActiveGLRenderTarget(const RenderTarget& render_target);
 
-    /** Change the size of the renderable area of the Render Target. **/
-    /// @param new_size new size in px.
-    void Resize(const Vector2& new_size);
-    void SetMSAAEnabled(MSAA_SAMPLE_RATE sample_rate);
-    /// If you're using raw OpenGL commands to draw to this outside of J2D or J3D don't forget to do this.
-    /// Blits the MSAA FBO onto the regular FBO if MSAA is enabled and or If you're rendering to a texture which uses mipmaps,
-    /// It regenerates them so what you drew doesn't disappear at a distance. Otherwise it does nothing.
-    void Blit() const;
+    /// Changes the size of the renderable area of this Render Target.
+    /// @param new_size new width & height in pixels.
+    /// @note The data stored in this Render Target will be lost.
+    void Resize(const Vector2i& new_size);
 
-    /// Blit a render target onto another. Will break if they're not the same size.
-    static void Blit(const RenderTarget& source, RenderTarget* destination);
+    /// Sets the MSAA mode for this Render Target.
+    /// @returns false if the mode isn't available, true for success.
+    [[nodiscard]] bool SetMSAAEnabled(MSAA_SAMPLE_RATE sample_rate);
 
-    /// Blit a single pixel onto a Render Target.
+    /// If you're using MSAA and not using J2D || J3D Begin & End you must do this.
+    void MSAABlit() const;
+
+    /// Copy one Render Target onto another. Will break if they're not the same size.
+    // TODO support different sizes. If the destination is too small fix it for them but log a warning.
+    static void Blit(const RenderTarget& source, RenderTarget* destination, const Vector2i& position = {0, 0});
+
+    /// Plots a single pixel onto a Render Target.
     /// @param color The color to render.
     /// @param position The position in the destination to draw the pixel.
     /// @param destination The destination RenderTarget.
-    static void Blit(const Color4& color, const Vector2& position, RenderTarget* destination);
-    [[nodiscard]] bool TextureCreatedByRenderTarget() const;
+    static void Blit(const Color4& color, const Vector2i& position, RenderTarget* destination);
+
+    /// Blit an input texture onto this render target at the given position.
+    /// @param source Source texture.
+    /// @param destination Render Target to draw on.
+    /// @param position Where in the destination to draw.
+    static void Blit(const Texture* source, RenderTarget* destination, const Vector2i& position = {0, 0});
+
+    /// @returns Whether or not this Render Target created it's Texture.
+    [[nodiscard]] bool OwnsTexture() const;
 public:
-    [[nodiscard]] Vector2 GetDimensions() const;
+    /// @returns the size of the renderable area.
+    [[nodiscard]] Vector2i GetDimensions() const;
+
+    /// @returns The currently selected MSAA Sample Rate.
     [[nodiscard]] MSAA_SAMPLE_RATE GetMSAASampleRate() const;
-    /// Returns whether or not MSAA is enabled, If it is and you're not using J2D || J3D Begin / End,
-    /// You need to run "Blit()" after rendering to your FBO before you show it.
-    /// @note Also, If the texture wasn't made by the RenderTarget you don't want this. It would destroy the texture.
+
+    /// @returns Whether or not this Render Target is using MSAA.
     [[nodiscard]] bool MSAAEnabled() const;
+
+    /// @returns The JGL texture this Render Target draws on.
     [[nodiscard]] const Texture* GetJGLTexture() const;
+
+    /// @returns The OpenGL handle for the texture this Render Target draws on.
     [[nodiscard]] GLuint GetGLTextureHandle() const;
+
+    /// @returns The OpenGL handle for this Render Target.
     [[nodiscard]] GLuint GetGLFramebufferObjectHandle() const;
+
+    /// @returns The handle to the OpenGL buffer containing depth information
+    /// @note Only valid if this Render Target is being used for 3D.
     [[nodiscard]] GLuint GetGLDepthBufferHandle() const;
+
+    /// @returns The color that should be used to clear this Render Target.
     [[nodiscard]] Color4 GetClearColor() const;
-    /// Get the data back from the FBO. This is *not* async friendly.
-    [[nodiscard]] std::vector<GLfloat> GetData() const;
+
+
+    /// @returns The color information for this Render Target.
+    /// @note Both the CPU & GPU cannot do anything while this takes place. It's very slow.
+    [[nodiscard]] std::vector<GLfloat> GetPixels() const;
 public:
-    /// Copy constructor. Will always set "texture_created_by_us" to true and use our own texture to avoid memleaks.
+    /// Create a Render Target from a Render Target that already exists.
+    /** @note Render Targets that are copies of another will copy the Texture.
+     * This is so that deleting the copy doesn't delete the Texture of the original.
+    */
     RenderTarget(const RenderTarget& rhs);
-    /// Create a render target for a texture that already exists. For adding to an existing texture.
-    explicit RenderTarget(const Texture* texture, const Color4& clear_color = Colors::Black);
-    /// Create a Render Target with a brand new texture. Want to render JGL elements onto a texture and display it as a sprite?
-    explicit RenderTarget(const Vector2& size, const Color4& clear_color = Colors::Black, bool use_depth = false, MSAA_SAMPLE_RATE sample_rate = MSAA_SAMPLE_RATE::MSAA_NONE);
+
+    /// Create a Render Target for a texture that already exists.
+    /// @param texture The Texture that using this Render Target would draw on.
+    /// @param clear_color The color to be used if you want to clear the Render Target.
+    /// @note For Render Targets created this way, The destructor will not delete the texture.
+    explicit RenderTarget(const Texture* texture, const Color4& clear_color = Colors::Transparent);
+
+    /// Create a Render Target with a new texture.
+    /// @param size The width & height the Render Target should have.
+    /// @param clear_color The color to be used if you want to clear the Render Target.
+    /// @param use_depth Whether or not this Render Target will have depth information.
+    /// @param sample_rate The MSAA sample rate this Render Target will use.
+    explicit RenderTarget(const Vector2i& size, const Color4& clear_color = Colors::Transparent, bool use_depth = false, MSAA_SAMPLE_RATE sample_rate = MSAA_SAMPLE_RATE::MSAA_NONE);
+
+    /// Deletes this Render Target.
+    /** @note If this Render Target was made with a Texture that already existed
+     * the Texture will not be deleted. */
     ~RenderTarget();
+
 };

include/JGL/types/Texture.h

@@ -8,19 +8,19 @@
 namespace JGL {
     using namespace ReImage;
     enum class TextureFilteringMode : u8 {
-        NEAREST = 0, //Fastest for 2D, Sometimes causes graphical issues.
-        BILINEAR = 1, //Fast and pretty, The best for 2D.
+        NEAREST = 0, // Fastest for 2D, Sometimes causes graphical issues.
+        BILINEAR = 1, // Fast and pretty, The best for 2D.
 
-        MIPMAP_NEAREST = 2, //Nearest with mipmaps. The fastest for 3D, Sometimes causes graphical issues. Uses more vram.
-        MIPMAP_BILINEAR = 3, //Bilinear with mipmaps, Fast and pretty. Uses more vram.
-        MIPMAP_TRILINEAR = 4 //The prettiest. Still decent speed. Uses more vram.
+        MIPMAP_NEAREST = 2, // Nearest with mipmaps. The fastest for 3D, Sometimes causes graphical issues. Uses more vram.
+        MIPMAP_BILINEAR = 3, // Bilinear with mipmaps, Fast and pretty. Uses more vram.
+        MIPMAP_TRILINEAR = 4 // The prettiest. Still decent speed. Uses more vram.
     };
 
     enum class TextureWrappingMode : u8 {
         REPEAT = 0,
         MIRRORED_REPEAT = 1,
         CLAMP_TO_EDGE = 2,
-        CLAMP_TO_BORDER = 3 //Effectively the same as clamp_to_edge
+        CLAMP_TO_BORDER = 3 // Effectively the same as clamp_to_edge
     };
 
     /// Represents texture data loaded on the GPU. Contains a handle that can be passed to OpenGL draw calls.
@@ -39,6 +39,8 @@ namespace JGL {
         /// Load a texture from a file,
         explicit Texture(const std::string& file, TextureFilteringMode filtering_mode = TextureFilteringMode::BILINEAR, TextureWrappingMode wrapping_mode = TextureWrappingMode::CLAMP_TO_EDGE, const TextureFlag& flags = TextureFlag::INVERT_Y);
         Texture(Image* software_texture, const Vector2& size, const TextureFormat& format, TextureFilteringMode filtering_mode, TextureWrappingMode wrapping_mode);
+        // Texture atlas.
+        Texture(const Texture* textures, const size_t& texture_count);
         /* Initialize a texture filled with trash data
         this is primarily for the RenderTarget */
         explicit Texture(const Vector2& size);

include/JGL/types/VRamList.h

@@ -34,7 +34,7 @@ public:
     /** Copying around the VBO data to a new VBO like this is slow.
      * Pass to function by const reference or pointer always. */
     VRamList(const VRamList& rhs);
-    VRamList() = default;
+    VRamList() : list_handle(0), num_elements(0), element_array_buffer(false), spin_lock(false) {}
 public:
     [[nodiscard]] GLuint GetHandle() const;
     /// Returns the number of elements in the list.

include/JGL/types/VertexArray.h

@@ -29,10 +29,10 @@ protected:
 protected:
     std::vector<Animation> animations{};
 protected:
-    VRamList vertices;
-    VRamList indices;
-    VRamList normals;
-    VRamList texture_coordinates;
+    VRamList* vertices;
+    VRamList* indices;
+    VRamList* normals;
+    VRamList* texture_coordinates;
 protected:
     /** For models which are not animated, This is intended for a low quality version in
      * system memory for calculations to be done on the CPU. For models that are, the default pose of the model is here.
@@ -43,10 +43,10 @@ protected:
     std::vector<Normal> local_normals{};
 public:
     /** Don't use these for anything other than drawing because the GPU is gonna spin during read-back */
-    [[nodiscard]] VRamList GetVertices() const;
-    [[nodiscard]] VRamList GetIndices() const;
-    [[nodiscard]] VRamList GetNormals() const;
-    [[nodiscard]] VRamList GetTextureCoordinates() const;
+    [[nodiscard]] const VRamList* GetVertices() const;
+    [[nodiscard]] const VRamList* GetIndices() const;
+    [[nodiscard]] const VRamList* GetNormals() const;
+    [[nodiscard]] const VRamList* GetTextureCoordinates() const;
 
     /** These are for cpu side calculations */
     [[nodiscard]] std::vector<Vertex> GetLocalVertices() const;
@@ -83,6 +83,7 @@ public:
     [[nodiscard]] AABB GetMEAABB(const Matrix3x3& rotation_matrix, const Vector3& scale = Vector3::One, const Vector3& translate_part = Vector3::Zero) const;
     [[nodiscard]] AABB GetMEAABB(const Matrix4x4& instance_matrix, bool translate = false) const;
 public:
+    VertexArray() = default;
     /// Vertices are required, Everything else is optional.
     VertexArray(const Vertex* vertex_positions, const long& vp_length, const unsigned int* vertex_indices = nullptr, const long& vi_length = 0,
                 const Normal* vertex_normals = nullptr, const long& vn_length = 0, const TextureCoordinate* texture_coordinates = nullptr, const long& vt_length = 0);
@@ -90,9 +91,13 @@ public:
     /// Vertices are required, Everything else is optional.
     explicit VertexArray(const std::vector<Vertex>& vertex_positions, const std::vector<unsigned int>& vertex_indices = {},
                          const std::vector<Normal>& vertex_normals = {}, const std::vector<TextureCoordinate>& texture_coordinates = {});
+
+    static VertexArray LoadWavefrontOBJ(const std::string& file_text);
+    static VertexArray LoadAMO(const std::string& file_text);
 };
 
+
 using namespace JGL;
+
 static VertexArray Animate(int animation_id, float animation_time);
 static VertexArray Animate(const AnimationState& anim_state);
-

main.cpp

@@ -5,14 +5,16 @@
 #include <J3ML/LinearAlgebra/Vector2.hpp>
 #include <JGL/logger/logger.h>
 #include <J3ML/Geometry/AABB.hpp>
+#include <rewindow/logger/logger.h>
+#include <JGL/types/VertexArray.h>
 
 using J3ML::LinearAlgebra::Vector2;
+using namespace JGL::Fonts;
 using namespace JGL;
 
-JGL::Font FreeSans;
-JGL::Font Jupiteroid;
 float fps = 0.0f;
 
+/// A draggable 2D point that highlights when moused over and when clicked.
 class Gizmo
 {
 public:
@@ -22,6 +24,15 @@ public:
     bool hovered = false;
     Vector2 position;
     float range = 6.f;
+    float base_radius = 3.f;
+    float hover_radius = 6.f;
+    float drag_radius = 4.f;
+    Color4 base_color = Colors::Reds::Salmon;
+    Color4 hover_color = Colors::Reds::Firebrick;
+    Color4 drag_color = Colors::White;
+    float lerp_rate = 0.25f;
+    float text_scale = 1.f;
+    int text_size = 12;
 
     void Grab() {
         if (hovered)
@@ -33,27 +44,25 @@ public:
 
     void Update(const Vector2& mouse) {
         if (dragging)
-            position = position.Lerp(mouse, 0.25f);
+            position = position.Lerp(mouse, lerp_rate);
 
         hovered = mouse.Distance(position) < range;
     }
 
     void Draw() {
-
-
         if (dragging)
-            J2D::DrawPoint(Colors::White, position, 4.f);
+            J2D::DrawPoint(drag_color, position, drag_radius);
         else if (hovered)
-            J2D::DrawPoint(Colors::Reds::Crimson, position, 6.f);
+            J2D::DrawPoint(hover_color, position, hover_radius);
         else
-            J2D::DrawPoint(Colors::Reds::Salmon, position, 3.f);
-
-        J2D::DrawString(Colors::White, std::format("{:.1f},{:.1f}", position.x, position.y), position.x, position.y, 1.f, 10, FreeSans);
+            J2D::DrawPoint(base_color, position, base_radius);
 
+        J2D::DrawString(Colors::White, std::format("{:.1f},{:.1f}", position.x, position.y), position.x, position.y, text_scale, text_size);
 
     }
 };
 
+/// A 3D Camera Controller.
 class Camera {
 public:
     Vector3 position = {0,0,0};
@@ -97,6 +106,7 @@ Gizmo b({200, 250});
 Gizmo c({350, 300});
 Gizmo d({450, 250});
 
+JGL::Font FreeSans;
 Texture* image;
 Texture* image_mask;
 RenderTarget* j2d_render_target;
@@ -110,8 +120,8 @@ public:
         if (!JGL::Init(GetSize(), 75, 100))
             Logger::Fatal("Initialization failed.");
 
+        // Load a custom font.
         FreeSans = JGL::Font("assets/fonts/FreeSans.ttf");
-        Jupiteroid = JGL::Font("assets/fonts/Jupiteroid.ttf");
 
         glClearColor(0.f, 0.f, 0.f, 0.f);
         glEnable(GL_DEPTH_TEST);
@@ -126,13 +136,15 @@ public:
 
     EulerAngleXYZ textAngle = {0,0,0};
     float fov = 90;
+    u8 pulse = 0;
     float sprite_radians = 0;
     bool fov_increasing = true;
     int blit_pos = 0;
 
     void display() {
+        pulse++;
+        float dt = GetDeltaTime();
 
-        float dt = 1.f / fps;
         JGL::Update(GetSize());
 
         if (fov_increasing)
@@ -155,7 +167,7 @@ public:
         camera->render();
         // All 3D elements of the scene and JGL elements *must* be rendered before the 2D stuff
         /* if rendering to screen space directly. */
-
+        auto test_light = PointLight({2,1,2}, {pulse,pulse,pulse, 255}, {pulse, pulse, pulse, 255}, {0,0,0}, 1, 0.1, 0.01);
         // If a 3D object has transparency. The things you'd like to see through it must be drawn before.
         J3D::Begin();
             J3D::DrawLine(Colors::Red, {-0.33,-0.125,1}, {-1,-0.125,1});
@@ -163,8 +175,9 @@ public:
             J3D::DrawString(Colors::Red, "JGL Sample Text", {-0.33, -0.1, 1.0f}, 1.f, 32, FreeSans, textAngle, true);
             //J3D::WireframeSphere(Colors::Green, {0,0,0.5f}, 0.25f, 1, 128, 128);
             Sphere sphere = {{0,0, 0.5f}, 0.2125};
-            J3D::BatchWireframeRevoSphere(Colors::Green, &sphere, 1, 1, 16, 16, true);
-            J3D::FillAABB(Colors::Whites::AliceBlue, {0,0,0.5f}, {0.1f, 0.1f, 0.1f});
+            J3D::BatchWireframeRevoSphere(Colors::Green, &sphere, 1, 1, 8, 8, true);
+            J3D::RequiredLight(&test_light);
+            J3D::FillAABB(Colors::Whites::AliceBlue, {0,0,0.5f}, {0.05f, 0.05f, 0.05f});
             J3D::WireframeAABB(Colors::Gray, {0,0,0.5f}, {0.11f, 0.06f, 0.11f});
 
             AABB boxes[1] = {{Vector3(-0.2125, -0.2125,0.28750), Vector3(0.2125,0.2125,0.7125)}};
@@ -232,6 +245,9 @@ public:
     }
 
     void OnRefresh(float elapsed) override {
+
+        fps = GetRefreshRate();
+
         if (IsKeyDown(Keys::RightArrow))
             camera->angle.y += 45.f * elapsed;
         if (IsKeyDown(Keys::LeftArrow))
@@ -289,24 +305,37 @@ public:
 
     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){}
+    JGLDemoWindow(const std::string& title, int width, int height) : ReWindow::RWindow(title, width, height) {}
 };
 
 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);
-    window->SetVsyncEnabled(false);
+    window->SetVsyncEnabled(true);
 
-    while (window->IsAlive()) {
-        std::chrono::high_resolution_clock::time_point start = std::chrono::high_resolution_clock::now();
-        window->PollEvents();
-        window->Refresh();
-        std::chrono::high_resolution_clock::time_point stop = std::chrono::high_resolution_clock::now();
-        std::chrono::duration<float> frame_time = stop - start;
-        fps = 1.0f / frame_time.count();
-    }
+    std::ifstream file("assets/models/cube.amo");
+    if (!file.is_open())
+        return -1;
+
+    /*
+    std::stringstream buffer;
+    buffer << file.rdbuf();
+    std::string file_text = buffer.str();
+    file.close();
+    std::cout << file_text << std::endl;
+
+    auto result = VertexArray::LoadAMO(file_text);
+     */
+    
+    //ReWindow::Logger::Error.EnableConsole(false);
+    //ReWindow::Logger::Warning.EnableConsole(false);
+    //ReWindow::Logger::Debug.EnableConsole(false);
+
+    while (window->IsAlive())
+        window->ManagedRefresh();
     return 0;
 }

src/ShapeCache.cpp

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

src/internals/include/AMO.h

@@ -0,0 +1,9 @@
+#pragma once
+#include <string>
+
+namespace JGL {
+    class VertexArray;
+    /*
+    VertexArray LoadAMO(const std::string& file_text);
+     */
+}

src/internals/include/WavefrontOBJ.h

@@ -0,0 +1,9 @@
+#pragma once
+#include <string>
+
+namespace JGL {
+    class VertexArray;
+    // Currently requires "Triangulate Mesh" ticked in Blender.
+    // TODO use the number of slashes in the first "face-line" to detect quads.
+    VertexArray LoadWavefrontOBJ(const std::string& file_text);
+}

src/internals/include/internals.h

@@ -0,0 +1,59 @@
+/// Things used in J2D and J3D that should not be exposed to the user of the library.
+#pragma once
+
+#include "glad/glad.h"
+#include <array>
+#include <vector>
+#include "J3ML/LinearAlgebra/Vector2.hpp"
+#include "JGL/types/RenderTarget.h"
+#include "JGL/types/Light.h"
+#include "JGL/logger/logger.h"
+
+namespace JGL {
+    inline constexpr std::array<const LightBase*, 8> empty_light_array = { nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr };
+    inline bool inJ2D = false;
+    inline bool inJ3D = false;
+    std::vector<Vector3> TriangleMeshVertexNormals(const Vector3* vertices, const size_t& vertex_count, const unsigned int* indices, const size_t& index_count);
+}
+
+namespace JGL::OpenGLState {
+    inline JGL::RenderTarget* render_target = nullptr;
+    inline Vector2 window_size;
+
+    inline GLfloat oldColor[4] = {0, 0, 0, 1};
+    inline GLfloat baseColor[4] = {1, 1, 1, 1};
+
+    inline GLuint current_fbo = 0;
+    inline GLint viewport[4] = {0, 0, 0, 0};
+
+    inline bool wasTexture2DEnabled = false;
+    inline bool wasTextureCoordArrayEnabled = false;
+    inline bool wasNormalArrayEnabled = false;
+
+    inline bool wasDepthTestEnabled = false;
+    inline bool wasVertexArraysEnabled = false;
+    inline bool wasCullFaceEnabled = false;
+    inline bool wasBlendEnabled = false;
+    inline bool wasColorArrayEnabled = false;
+    inline GLint activeTextureUnit = 0;
+}
+
+namespace JGL::J2D {
+    inline std::array<const LightBase*, 8> required_lights;
+    inline std::vector<const LightBase*> light_array;
+}
+
+namespace JGL::J3D {
+    // List of lights required for each objects in the scene. up-to 8. For example, the sun. Or a flash-light.
+    inline std::array<const LightBase*, 8> required_lights;
+    // List of all lights in the scene.
+    inline std::vector<const LightBase*> optional_lights;
+    inline float far_plane = 0;
+    inline float fov = 0;
+    // Enables lighting and selects the correct lights to use.
+    void SelectLights(const Vector3& position);
+    // Resets the GL lights to default and disables them. Then, disables lighting.
+    void ResetLights();
+    [[nodiscard]] bool UsingLighting();
+
+}

src/internals/src/ShapeCache.cpp

@@ -0,0 +1,54 @@
+#include <JGL/JGL.h>
+
+void JGL::ShapeCache::Init() {
+    std::array<Vector3, 8> vertices = {
+            Vector3(1.0f,  1.0f, -1.0f),
+            Vector3(1.0f, -1.0f, -1.0f),
+            Vector3(1.0f,  1.0f,  1.0f),
+            Vector3(1.0f, -1.0f,  1.0f),
+            Vector3(-1.0f,  1.0f, -1.0f),
+            Vector3(-1.0f, -1.0f, -1.0f),
+            Vector3(-1.0f,  1.0f,  1.0f),
+            Vector3(-1.0f, -1.0f,  1.0f)
+    };
+    std::array<unsigned int, 36> indices = {
+            4, 2, 0,
+            2, 7, 3,
+            6, 5, 7,
+            1, 7, 5,
+            0, 3, 1,
+            4, 1, 5,
+            4, 6, 2,
+            2, 6, 7,
+            6, 4, 5,
+            1, 3, 7,
+            0, 2, 3,
+            4, 0, 1
+    };
+
+    std::array<Vector3, 8> vertex_normals = {
+            Vector3( 0.816f,  0.408f, -0.408f),
+            Vector3( 0.333f, -0.667f, -0.667f),
+            Vector3( 0.333f,  0.667f,  0.667f),
+            Vector3( 0.816f, -0.408f,  0.408f),
+            Vector3(-0.333f,  0.667f, -0.667f),
+            Vector3(-0.816f, -0.408f, -0.408f),
+            Vector3(-0.816f,  0.408f,  0.408f),
+            Vector3(-0.333f, -0.667f,  0.667f)
+    };
+
+    if (!cube_vertex_data)
+        cube_vertex_data = new VRamList(vertices.data(), vertices.size());
+
+    if (!cube_index_data)
+        cube_index_data = new VRamList(indices.data(), indices.size());
+
+    if (!cube_normal_data) {
+        cube_normal_data = new VRamList(vertex_normals.data(), vertex_normals.size());
+    }
+
+    if (!j2d_default_normal_data) {
+        std::array<GLfloat, 3> normal {0, 0, 1};
+        j2d_default_normal_data = new VRamList(normal.data(), normal.size());
+    }
+}

src/internals/src/WavefrontOBJ.cpp

@@ -0,0 +1,336 @@
+#include "../include/WavefrontOBJ.h"
+#include "../include/AMO.h"
+#include <JGL/types/VertexArray.h>
+#include <JGL/logger/logger.h>
+
+std::pair<float, unsigned long> ParseNumber(const std::string& file_text, const unsigned long& offset) {
+    std::string number;
+    unsigned long new_offset = offset;
+    bool decimal_used = false;
+
+    if (offset >= file_text.size())
+        return {0.0f, offset};
+
+    for (; new_offset < file_text.size(); new_offset++) {
+        if (file_text[new_offset] == '-') {
+            if (number.empty()) {
+                number.push_back(file_text[new_offset]);
+                continue;
+            }
+            Logger::Error("Error while parsing number, Index: " + std::to_string(new_offset) + " Extra negative sign.");
+            return {0.0f, offset};
+        }
+
+        else if (file_text[new_offset] == '.') {
+            if (!decimal_used) {
+                number.push_back(file_text[new_offset]);
+                decimal_used = true;
+                continue;
+            }
+            Logger::Error("Error parsing number at: " + std::to_string(new_offset) + " Extra decimal point.");
+            return {0.0f, offset};
+        }
+
+        else if (isdigit(file_text[new_offset]))
+            number.push_back(file_text[new_offset]);
+        else
+            break;
+    }
+    return {std::stof(number), new_offset};
+}
+
+std::pair<Vector2, unsigned long> ParseVector2(const std::string& file_text, const unsigned long& offset) {
+    auto x_result = ParseNumber(file_text, offset);
+    auto y_result = ParseNumber(file_text, x_result.second + 1);
+
+    // If the new offset is the same as the offset we passed in then we know it didn't work.
+    if (x_result.second == offset || y_result.second == x_result.second)
+        return {Vector2(0, 0), offset};
+
+    return {Vector2(x_result.first, y_result.first), y_result.second + 1};
+}
+
+std::pair<Vector3, unsigned long> ParseVector3(const std::string& file_text, const unsigned long& offset) {
+    auto x_result = ParseNumber(file_text, offset);
+    auto y_result = ParseNumber(file_text, x_result.second + 1);
+    auto z_result = ParseNumber(file_text, y_result.second + 1);
+
+    // If the new offset is the same as the offset we passed in then we know it didn't work.
+    if (x_result.second == offset || y_result.second == x_result.second || z_result.second == y_result.second)
+        return {Vector3(0,0,0), offset};
+
+    return {Vector3(x_result.first, y_result.first, z_result.first), z_result.second + 1};
+}
+
+std::pair<Vector4, unsigned long> ParseVector4(const std::string& file_text, const unsigned long& offset) {
+    auto x_result = ParseNumber(file_text, offset);
+    auto y_result = ParseNumber(file_text, x_result.second + 1);
+    auto z_result = ParseNumber(file_text, y_result.second + 1);
+    auto w_result = ParseNumber(file_text, z_result.second + 1);
+
+    if (x_result.second == offset || y_result.second == x_result.second || z_result.second == y_result.second || w_result.second == z_result.second)
+        return {Vector4(0, 0, 0, 0), offset};
+
+    return {Vector4(x_result.first, y_result.first, z_result.first, w_result.first), w_result.second + 1};
+}
+
+std::pair<std::array<Vector3, 3>, unsigned long> ParseWavefrontFaceData(const std::string& file_text, const unsigned long& offset) {
+    unsigned long new_offset = offset;
+    std::array<Vector3, 3> face_data;
+
+    for (unsigned int i = 0; i < 3; i++) {
+        Vector3 vertex = {-1, -1, -1};
+
+        // Vertex
+        if (std::isdigit(file_text[new_offset])) {
+            auto v_result = ParseNumber(file_text, new_offset);
+            vertex.x = v_result.first;
+            new_offset = v_result.second;
+        }
+
+        // UV
+        if (new_offset < file_text.size() && file_text[new_offset] == '/') {
+            new_offset++;
+
+            if (new_offset < file_text.size() && (std::isdigit(file_text[new_offset]))) {
+                auto vt_result = ParseNumber(file_text, new_offset);
+                vertex.y = vt_result.first;
+                new_offset = vt_result.second;
+            }
+        }
+
+        // Normal
+        if (new_offset < file_text.size() && file_text[new_offset] == '/') {
+            new_offset++;
+
+            if (new_offset < file_text.size() && (std::isdigit(file_text[new_offset]))) {
+                auto vn_result = ParseNumber(file_text, new_offset);
+                vertex.z = vn_result.first;
+                new_offset = vn_result.second;
+            }
+        }
+
+        face_data[i] = vertex;
+        new_offset++;
+    }
+    return {face_data, new_offset};
+}
+
+VertexArray JGL::LoadWavefrontOBJ(const std::string &file_text) {
+    std::vector<std::array<Vector3, 3>> faceline_data;
+
+    std::vector<TextureCoordinate> temp_uvs;
+    std::vector<Normal> temp_normals;
+    std::vector<Vertex> temp_vertices;
+
+    unsigned long offset = 0;
+    while (offset < file_text.size()) {
+        char c = file_text[offset];
+
+        // TODO the entire line a comment is on should be skipped.
+        // Skip forward to the character after the next newline.
+        if (c == '#' || c == '\n' || c == '\r') {
+            offset++;
+            continue;
+        }
+
+        // Vertices
+        if (c == 'v' && offset + 1 < file_text.size() && file_text[offset + 1] == ' ') {
+            offset += 2;
+
+            auto vertex_result = ParseVector3(file_text, offset);
+            if (vertex_result.second != offset) {
+                temp_vertices.push_back(vertex_result.first);
+                offset = vertex_result.second;
+            }
+        }
+
+            // Normals.
+        else if (c == 'v' && offset + 2 < file_text.size() && file_text[offset + 1] == 'n' &&
+                 file_text[offset + 2] == ' ') {
+            offset += 3;
+
+            auto normal_result = ParseVector3(file_text, offset);
+            if (normal_result.second != offset) {
+                temp_normals.push_back(normal_result.first);
+                offset = normal_result.second;
+            }
+        }
+
+            // Texture Coordinates
+        else if (c == 'v' && offset + 2 < file_text.size() && file_text[offset + 1] == 't' &&
+                 file_text[offset + 2] == ' ') {
+            offset += 3;
+
+            auto uv_result = ParseVector2(file_text, offset);
+            if (uv_result.second != offset) {
+                temp_uvs.push_back(uv_result.first);
+                offset = uv_result.second;
+            }
+        }
+
+            // Face lines.
+        else if (c == 'f' && offset + 1 < file_text.size() && file_text[offset + 1] == ' ') {
+            offset += 2;
+
+            auto faceline_result = ParseWavefrontFaceData(file_text, offset);
+            if (faceline_result.second != offset) {
+                faceline_data.push_back(faceline_result.first);
+                offset = faceline_result.second;
+            }
+        } else
+            offset++;
+    }
+
+// Pick everything out of the face lines and set up how OpenGL expects.
+    std::vector<Vertex> final_vertices;
+    std::vector<TextureCoordinate> final_uvs;
+    std::vector<Normal> final_normals;
+    std::vector<unsigned int> final_indices;
+    for (const auto &face: faceline_data) {
+        for (const auto &vp: face) {
+            Vertex vertex;
+            TextureCoordinate uv;
+            Normal normal;
+
+            if (vp.x != -1)
+                vertex = temp_vertices[vp.x - 1];
+            if (vp.y != -1)
+                uv = temp_uvs[vp.y - 1];
+            if (vp.z != -1)
+                normal = temp_normals[vp.z - 1];
+
+            final_vertices.push_back(vertex);
+            final_uvs.push_back(uv);
+            final_normals.push_back(normal);
+            final_indices.push_back((unsigned int) final_vertices.size() - 1);
+        }
+    }
+
+    return VertexArray(
+            final_vertices.data(), final_vertices.size(),
+            final_indices.data(), final_indices.size(),
+            final_normals.data(), final_normals.size(),
+            final_uvs.data(), final_uvs.size());
+}
+
+/*
+VertexArray JGL::LoadAMO(const std::string& file_text) {
+    std::vector<Vector3> temp_vertices;
+    std::vector<Vector3> temp_normals;
+    std::vector<Vector2> temp_uvs;
+    std::vector<std::array<Vector3, 3>> faceline_data;
+    std::string name;
+
+    unsigned long offset = 0;
+    while (offset < file_text.size()) {
+        char c = file_text[offset];
+
+        // If we've dropped on a newline character somehow then just skip passed it.
+        if (c == '\n' || c == '\r') {
+            offset++; continue;
+        }
+
+        // File name.
+        else if (offset + 2 < file_text.size() && c == 'a' && file_text[offset + 1] == 'o' && file_text[offset + 2] == ' ') {
+            offset += 3;
+            while (offset < file_text.size()) {
+                if (file_text[offset] != '\n' && file_text[offset] != '\r')
+                    name.push_back(file_text[offset]), offset++;
+                else
+                    break;
+            }
+        }
+
+        // Vertices
+        else if (offset + 1 < file_text.size() && c == 'v' && file_text[offset + 1] == ' ') {
+            offset += 2; auto parsed_number = ParseNumber(file_text, offset);
+
+            if (parsed_number.second == offset)
+                Logger::Fatal("We couldn't interpret the Vertex count at: " + std::to_string(offset));
+
+            unsigned long vertex_count = parsed_number.first;
+            offset = parsed_number.second;
+
+            for (unsigned long i = 0; i < vertex_count; i++) {
+                // Skip by newlines.
+                while (file_text[offset] == '\n' || file_text[offset] == '\r')
+                    offset++;
+
+                auto parsed_vector3 = ParseVector3(file_text, offset);
+                if (parsed_vector3.second == offset)
+                    Logger::Fatal("We couldn't interpret the Vertex at: " + std::to_string(offset));
+
+                temp_vertices.push_back(parsed_vector3.first);
+                offset = parsed_vector3.second;
+            }
+        }
+
+        // UVs
+        else if (offset + 2 < file_text.size() && c == 'v' && file_text[offset + 1] == 't' && file_text[offset + 2] == ' ') {
+            offset += 3; auto parsed_number = ParseNumber(file_text, offset);
+
+            if (parsed_number.second == offset)
+                Logger::Fatal("We couldn't interpret the UV count at: " + std::to_string(offset));
+
+            unsigned long uv_count = parsed_number.first;
+            offset = parsed_number.second;
+
+            for (unsigned long i = 0; i < uv_count; i++) {
+                // Skip by newlines.
+                while (file_text[offset] == '\n' || file_text[offset] == '\r')
+                    offset++;
+
+                auto parsed_vector2 = ParseVector2(file_text, offset);
+                if (parsed_vector2.second == offset)
+                    Logger::Fatal("We couldn't interpret the UV at: " + std::to_string(offset));
+
+                temp_uvs.push_back(parsed_vector2.first);
+                offset = parsed_vector2.second;
+            }
+        }
+
+        // Normals
+        else if (offset + 2 < file_text.size() && c == 'v' && file_text[offset + 1] == 'n' && file_text[offset + 2] == ' ') {
+            offset += 3; auto parsed_number = ParseNumber(file_text, offset);
+
+            if (parsed_number.second == offset)
+                Logger::Fatal("We couldn't interpret the Normal count at: " + std::to_string(offset));
+
+            unsigned long uv_count = parsed_number.first;
+            offset = parsed_number.second;
+
+            for (unsigned long i = 0; i < uv_count; i++) {
+                // Skip by newlines.
+                while (file_text[offset] == '\n' || file_text[offset] == '\r')
+                    offset++;
+
+                auto parsed_vector3 = ParseVector3(file_text, offset);
+                if (parsed_vector3.second == offset)
+                    Logger::Fatal("We couldn't interpret the Normal at: " + std::to_string(offset));
+
+                temp_normals.push_back(parsed_vector3.first);
+                offset = parsed_vector3.second;
+            }
+        }
+
+        // Face Lines
+        else if (offset + 1 < file_text.size() && c == 'f'  && file_text[offset + 1] == ' ') {
+            offset += 2; auto parsed_number = ParseNumber(file_text, offset);
+
+            if (parsed_number.second == offset)
+                Logger::Fatal("We couldn't interpret the Face Line count at: " + std::to_string(offset));
+
+            unsigned long faceline_count = parsed_number.first;
+            for (unsigned long i = 0; i < faceline_count; i++) {
+                // Skip by newlines.
+                while (file_text[offset] == '\n' || file_text[offset] == '\r')
+                    offset++;
+
+                
+            }
+        }
+
+    }
+}
+ */

src/internals/src/internals.cpp

@@ -0,0 +1,119 @@
+#include "../include/internals.h"
+#include "J3ML/LinearAlgebra/Vector4.hpp"
+#include "JGL/types/Light.h"
+
+// TODO handle the case that a required light is in the list of optional lights.
+void JGL::J3D::SelectLights(const Vector3& position) {
+    std::array<const LightBase*, 8> result = required_lights;
+
+    unsigned int required_light_count = 0;
+    for (const auto& i : result)
+        if (i) required_light_count++;
+
+    // If there is optional lights.
+    if (!optional_lights.empty()) {
+        // The number of lights we need to solve for
+        unsigned int remaining_lights = 8 - required_light_count;
+
+        std::vector<std::pair<float, const LightBase*>> light_influence;
+        for (const auto* light: optional_lights)
+            light_influence.emplace_back(light->GetAttenuationAtPosition(position), light);
+
+        // Sort by biggest influence.
+        std::sort(light_influence.begin(), light_influence.end(),
+                  [](const auto &a, const auto &b) { return a.first > b.first; });
+
+        // Add in optional lights.
+        for (unsigned int i = 0; i < remaining_lights && i < light_influence.size(); i++)
+            result[required_light_count++] = light_influence[i].second;
+    }
+
+    glEnable(GL_LIGHTING);
+    for (unsigned int i = 0; i < result.size(); i++) {
+        // Terminate early if we have less than 8 lights.
+        if (!result[i])
+            break;
+
+        Vector4 ambient = { result[i]->GetAmbient().RN(), result[i]->GetAmbient().GN(), result[i]->GetAmbient().BN(), result[i]->GetAmbient().AN() };
+        Vector4 diffuse = { result[i]->GetDiffuse().RN(), result[i]->GetDiffuse().GN(), result[i]->GetDiffuse().BN(), result[i]->GetDiffuse().AN() };
+        Vector4 specular = { result[i]->GetSpecular().RN(), result[i]->GetSpecular().GN(), result[i]->GetSpecular().BN(), result[i]->GetSpecular().AN() };
+        GLenum current_light = GL_LIGHT0 + i;
+
+        glEnable(GL_LIGHT0 + i);
+        glLightfv(current_light, GL_POSITION, result[i]->GetPosition().ptr());
+
+        // How the light will affect different materials.
+        glLightfv(current_light, GL_AMBIENT, ambient.ptr());
+        glLightfv(current_light, GL_DIFFUSE, diffuse.ptr());
+        glLightfv(current_light, GL_SPECULAR, specular.ptr());
+
+        // How far the light goes.
+        glLightf(current_light, GL_CONSTANT_ATTENUATION, result[i]->GetConstantAttenuation());
+        glLightf(current_light, GL_LINEAR_ATTENUATION, result[i]->GetLinearAttenuation());
+        glLightf(current_light, GL_QUADRATIC_ATTENUATION, result[i]->GetQuadraticAttenuation());
+    }
+}
+
+void JGL::J3D::ResetLights() {
+    Vector4 position = {0, 0, 1, 0};
+    Vector4 ambient = {0, 0, 0, 1};
+    Vector4 diffuse_light0 = {1,1,1,1};
+    Vector4 diffuse = {0,0,0,1};
+    Vector4 specular_light0 = {1,1,1,1};
+    Vector4 specular = {0,0,0,1};
+    Vector3 spot_direction = {0.0, 0.0, -1.0};
+
+    for (unsigned int i = 0; i < 8; i++) {
+        GLenum current_light = GL_LIGHT0 + i;
+
+        glLightfv(current_light, GL_POSITION, position.ptr());
+        glLightfv(current_light, GL_AMBIENT, ambient.ptr());
+        glLightf(current_light, GL_CONSTANT_ATTENUATION, 1);
+        glLightf(current_light, GL_LINEAR_ATTENUATION, 0);
+        glLightf(current_light, GL_QUADRATIC_ATTENUATION, 0);
+        glLightf(current_light, GL_SPOT_CUTOFF, 180.0);
+        glLightfv(current_light, GL_SPOT_DIRECTION, spot_direction.ptr());
+        glLightf(current_light, GL_SPOT_EXPONENT, 0.0);
+        glLightfv(current_light, GL_DIFFUSE, (i == 0 ? diffuse_light0.ptr() : diffuse.ptr()));
+        glLightfv(current_light, GL_SPECULAR, (i == 0 ? specular_light0.ptr() : specular.ptr()));
+        glDisable(current_light);
+    }
+    glDisable(GL_LIGHTING);
+}
+
+bool JGL::J3D::UsingLighting() {
+    if (!optional_lights.empty())
+        return true;
+
+    for (unsigned int i = 0; i < required_lights.size(); i++)
+        if (required_lights[i])
+            return true;
+    return false;
+}
+
+std::vector<Vector3> JGL::TriangleMeshVertexNormals(const Vector3* vertices, const size_t& vertex_count, const unsigned int* indices, const size_t& index_count) {
+    std::vector<Vector3> normals(vertex_count, Vector3(0, 0, 0));
+
+    for (size_t i = 0; i < index_count; i += 3) {
+        GLuint i1 = indices[i];
+        GLuint i2 = indices[i + 1];
+        GLuint i3 = indices[i + 2];
+
+        Vector3 v1 = vertices[i1];
+        Vector3 v2 = vertices[i2];
+        Vector3 v3 = vertices[i3];
+
+        Vector3 edge1 = v2 - v1;
+        Vector3 edge2 = v3 - v1;
+
+        Vector3 faceNormal = Vector3::Cross(edge1, edge2);
+
+        normals[i1] += faceNormal;
+        normals[i2] += faceNormal;
+        normals[i3] += faceNormal;
+    }
+    for (auto& normal : normals)
+        normal = normal.Normalized();
+
+    return normals;
+}

src/renderer/J3D.cpp

@@ -0,0 +1,608 @@
+#include <JGL/JGL.h>
+#include <JGL/logger/logger.h>
+#include <J3ML/Geometry/AABB.hpp>
+#include <J3ML/Geometry/OBB.hpp>
+#include <J3ML/Algorithm/Bezier.hpp>
+#include <JGL/types/Light.h>
+#include "../internals/include/internals.h"
+
+
+std::array<GLfloat, 16> JGL::OpenGLPerspectiveProjectionRH(float fovY, float aspect, float z_near, float z_far) {
+    std::array<GLfloat, 16> result{};
+    GLfloat f = 1.0f / std::tan(fovY * 0.5f * Math::Pi / 180.0f);
+    result[0] = f / aspect;
+    result[5] = f;
+    result[10] = (z_far + z_near) / (z_near - z_far);
+    result[11] = -1.0f;
+    result[14] = (2.0f * z_far * z_near) / (z_near - z_far);
+    return result;
+}
+
+void JGL::J3D::ChangeFOV(float fov) {
+    JGL::J3D::fov = fov;
+}
+
+void JGL::J3D::ChangeFarPlane(float far_plane) {
+    JGL::J3D::far_plane = far_plane;
+}
+
+void JGL::J3D::RequiredLight(const JGL::LightBase* light) {
+    bool success = false;
+    for (auto& i : required_lights)
+        if (i == nullptr) {
+            i = light;
+            success = true;
+            break;
+        }
+
+    if (!success)
+        Logger::Error("You cannot specify more than 8 required lights.");
+}
+
+void JGL::J3D::OptionalLights(const JGL::LightBase** lights, const size_t& light_count) {
+    for (size_t i = 0; i < light_count; i++)
+        optional_lights.push_back(lights[i]);
+}
+
+void JGL::J3D::Begin(bool two_pass) {
+    auto aspect = (float) OpenGLState::window_size.x / (float) OpenGLState::window_size.y;
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glMultMatrixf(OpenGLPerspectiveProjectionRH(fov, aspect, 0.001, far_plane).data());
+    glMatrixMode(GL_MODELVIEW);
+
+    //Get what the draw color was before we did anything.
+    glGetFloatv(GL_CURRENT_COLOR, OpenGLState::oldColor);
+    glColor4fv(OpenGLState::baseColor);
+
+    if (!glIsEnabled(GL_DEPTH_TEST))
+        OpenGLState::wasDepthTestEnabled = false,
+        glEnable(GL_DEPTH_TEST);
+    else
+        OpenGLState::wasDepthTestEnabled = true;
+
+    OpenGLState::wasVertexArraysEnabled = false;
+    if (!glIsEnabled(GL_VERTEX_ARRAY))
+        OpenGLState::wasVertexArraysEnabled = false,
+        glEnableClientState(GL_VERTEX_ARRAY);
+
+    if (glIsEnabled(GL_NORMAL_ARRAY))
+        OpenGLState::wasNormalArrayEnabled = true,
+        glDisableClientState(GL_NORMAL_ARRAY);
+
+    if (glIsEnabled(GL_TEXTURE_COORD_ARRAY))
+        OpenGLState::wasTextureCoordArrayEnabled = true,
+        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+
+    if (glIsEnabled(GL_TEXTURE_2D))
+        OpenGLState::wasTexture2DEnabled = true,
+        glDisable(GL_TEXTURE_2D);
+
+    OpenGLState::wasCullFaceEnabled = false;
+    if (glIsEnabled(GL_CULL_FACE))
+        OpenGLState::wasCullFaceEnabled = true,
+        glDisable(GL_CULL_FACE);
+
+    if (!glIsEnabled(GL_BLEND))
+        OpenGLState::wasBlendEnabled = false,
+        glEnable(GL_BLEND),
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    else
+        OpenGLState::wasBlendEnabled = true;
+
+    // Reset the lights.
+    required_lights = empty_light_array;
+    optional_lights = {};
+
+    glDisable(GL_LIGHTING);
+    if (!inJ2D)
+        inJ3D = true;
+    else
+        Logger::Error("Beginning J3D context inside of J2D context?");
+}
+
+void JGL::J3D::End() {
+    if (!OpenGLState::wasDepthTestEnabled)
+        glDisable(GL_DEPTH_TEST);
+
+    if (!OpenGLState::wasVertexArraysEnabled)
+        glDisableClientState(GL_VERTEX_ARRAY);
+
+    if (OpenGLState::wasTexture2DEnabled)
+        glEnable(GL_TEXTURE_2D);
+
+    if (!OpenGLState::wasBlendEnabled)
+        glDisable(GL_BLEND);
+
+    if (OpenGLState::wasCullFaceEnabled)
+        glEnable(GL_CULL_FACE);
+
+    if (OpenGLState::wasNormalArrayEnabled)
+        glEnableClientState(GL_NORMAL_ARRAY);
+
+    if (OpenGLState::wasTextureCoordArrayEnabled)
+        glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+    if (glIsEnabled(GL_LIGHTING)) {
+        glDisable(GL_LIGHTING);
+        glDisable(GL_LIGHT0);
+        glDisable(GL_LIGHT1);
+        glDisable(GL_LIGHT2);
+        glDisable(GL_LIGHT3);
+        glDisable(GL_LIGHT4);
+        glDisable(GL_LIGHT5);
+        glDisable(GL_LIGHT6);
+        glDisable(GL_LIGHT7);
+    }
+
+    required_lights = empty_light_array;
+    optional_lights = {};
+
+    //Put the draw color back how it was before.
+    glColor4fv(OpenGLState::oldColor);
+    inJ3D = false;
+}
+
+void JGL::J3D::DrawLine(const Color4& color, const Vector3& A, const Vector3& B, float thickness) {
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+
+    Vector3 vertices[] = {A, B};
+
+    glLineWidth(thickness);
+    glColor4ubv(color.ptr());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), vertices);
+    glDrawArrays(GL_LINES, 0, 2);
+    glColor4fv(OpenGLState::baseColor);
+}
+
+void JGL::J3D::WireframeSphere(const Color4& color, const Vector3& position, float radius, float thickness, unsigned int sectors, unsigned int stacks) {
+    Sphere sphere = {position, radius};
+    BatchWireframeSphere(color,& sphere, 1, thickness, sectors, stacks);
+}
+
+void JGL::J3D::WireframeSphere(const Color4& color, const Sphere& sphere, float thickness, unsigned int sectors, unsigned int stacks) {
+    BatchWireframeSphere(color,& sphere, 1, thickness, sectors, stacks);
+}
+
+void JGL::J3D::BatchWireframeSphere(const Color4& color, const Sphere* spheres, const size_t& sphere_count, float thickness, unsigned int sectors, unsigned int stacks) {
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+
+    // Create one sphere with a radius of 1 about 0, 0.
+    float r = 1;
+    std::vector<Vector3> vertices((sectors + 1) * (stacks + 1));
+
+    int index = 0;
+    for (int i = 0; i <= sectors; i++) {
+        float lat = J3ML::Math::Pi * (-0.5 + (float) i / sectors);
+        float z = J3ML::Math::Sin(lat);
+        float zr = J3ML::Math::Cos(lat);
+
+        for (int j = 0; j <= stacks; j++) {
+            float lng = 2 * J3ML::Math::Pi * (float) (j - 1) / stacks;
+            float x = J3ML::Math::Cos(lng);
+            float y = J3ML::Math::Sin(lng);
+
+            float pos_x = r * x * zr;
+            float pos_y = r * y * zr;
+            float pos_z = r * z;
+
+            vertices[index++] = Vector3(pos_x, pos_y, pos_z);
+        }
+    }
+
+    glLineWidth(thickness);
+    glColor4ubv(color.ptr());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), vertices.data());
+
+    // Render each sphere in the batch at their given position and radius.
+    for(size_t i = 0; i < sphere_count; i++) {
+        glPushMatrix();
+        glTranslatef(spheres[i].Position.x, spheres[i].Position.y, spheres[i].Position.z);
+        glScalef(spheres[i].Radius, spheres[i].Radius, spheres[i].Radius);
+        glDrawArrays(GL_LINE_LOOP, 0, vertices.size());
+        glPopMatrix();
+    }
+    glColor4fv(OpenGLState::baseColor);
+}
+
+void JGL::J3D::WireframeRevoSphere(const Color4& color, const Vector3& position, float radius, float thickness, unsigned int sectors, unsigned int revolutions, bool draw_stacks) {
+    Sphere sphere = {position, radius};
+    BatchWireframeRevoSphere(color,& sphere, 1, thickness, sectors, revolutions, draw_stacks);
+}
+
+void JGL::J3D::WireframeRevoSphere(const Color4& color, const Sphere& sphere, float thickness, unsigned int sectors, unsigned int revolutions, bool draw_stacks) {
+    BatchWireframeRevoSphere(color,& sphere, 1, thickness, sectors, revolutions, draw_stacks);
+}
+
+void JGL::J3D::BatchWireframeRevoSphere(const Color4& color, const Sphere* spheres, const size_t& sphere_count, float thickness, unsigned int sectors, unsigned int revolutions, bool draw_stacks) {
+    float r = 1;
+    std::vector<Vector3> vertices;
+    vertices.reserve((sectors + 1) * (revolutions + 1));
+
+    std::vector<Vector3> cross_section(sectors + 1);
+    for (int i = 0; i <= sectors; i++) {
+        float lat = J3ML::Math::Pi * (-0.5 + (float)i / sectors);
+        float z = J3ML::Math::Sin(lat);
+        float zr = J3ML::Math::Cos(lat);
+        cross_section[i] = Vector3(0, zr * r, z * r);
+    }
+
+    // Revolve
+    for (int j = 0; j <= revolutions; j++) {
+        float lng = 2 * J3ML::Math::Pi * (float)j / revolutions;
+        float cosLng = J3ML::Math::Cos(lng);
+        float sinLng = J3ML::Math::Sin(lng);
+
+        for (const auto& point : cross_section) {
+            float pos_x = point.y * cosLng;
+            float pos_y = point.y * sinLng;
+            float pos_z = point.z;
+
+            vertices.emplace_back(pos_x, pos_y, pos_z);
+        }
+    }
+
+    glLineWidth(thickness);
+    glColor4ubv(color.ptr());
+
+    VRamList vertex_data(vertices.data(), vertices.size());
+    glBindBuffer(GL_ARRAY_BUFFER, vertex_data.GetHandle());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), nullptr);
+
+    // Render each sphere in the batch at their given position and radius.
+    for(size_t i = 0; i < sphere_count; i++) {
+        glPushMatrix();
+        glTranslatef(spheres[i].Position.x, spheres[i].Position.y, spheres[i].Position.z);
+        glScalef(spheres[i].Radius, spheres[i].Radius, spheres[i].Radius);
+        glDrawArrays(GL_LINE_LOOP, 0, vertex_data.GetLength());
+        if (draw_stacks)
+            glRotatef(90, 0, 1, 0),
+                    glDrawArrays(GL_LINE_LOOP, 0, vertex_data.GetLength());
+        glPopMatrix();
+    }
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glColor4fv(OpenGLState::baseColor);
+}
+
+void JGL::J3D::WireframeIcosphere(const Color4& color, const Vector3& position, float radius, float thickness,
+                             unsigned int subdivisions) {
+
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+
+    // NOTE2SELF: Code i'm borrowing this from uses float-packed-arrays rather than discrete Vectors
+    // working on translating that correctly...
+
+    // TODO: Revise this once J3ML::Geometry::Icosahedron is implemented.
+    const float h_angle = J3ML::Math::Pi / 180.f * 72.f;    // 72 degree = 360 / 5;
+    const float v_angle = J3ML::Math::Atan(1.0f / 2.f);     // elevation = 26.565;
+
+    std::vector<Vector3> vertices;                   // array of 12 vertices (x,y,z)
+    unsigned int index = 0;                                      // indices
+    float z, xy;                                        // coords
+    float hAngle1 = -Math::Pi / 2.f - h_angle / 2.f;    // start from -126 at 1st row
+    float hAngle2 = -Math::Pi / 2.f;                    // start from -90 deg at 2nd row
+
+    // the first top vertex at (0,0,r)
+    vertices[0] = position + Vector3{0,0,radius};
+
+
+
+    // compute 10 vertices at 1st and 2nd rows
+    for (int i = 1; i <= 5; ++i)
+    {
+
+        z  = radius * Math::Sin(v_angle);   // elevation
+        xy = radius * Math::Cos(v_angle);   // length on XY plane
+
+        vertices[index++] = position + Vector3{xy * Math::Cos(hAngle1), xy * Math::Sin(hAngle1), z} ;
+        vertices[index++] = position + Vector3{xy * Math::Cos(hAngle2), xy * Math::Sin(hAngle2), -z};
+
+        // next horizontal angles
+        hAngle1 += h_angle;
+        hAngle2 += h_angle;
+    }
+
+    // the last bottom vertex at (0, 0, -r)
+    vertices[11] = position + Vector3{0,0, -radius};
+
+    //glLineWidth(thickness);
+    //glColor4ubv(color.ptr());
+    //glBindBuffer(GL_ARRAY_BUFFER, vertices.size());
+    //glVertexPointer(3, GL_FLOAT, sizeof(Vector3), vertices.data());
+    //glDrawArrays(GL_TRIANGLE_STRIP, 0, vertices.size());
+    //glColor4fv(baseColor);
+
+    std::vector<Vector3> tmpVertices;
+    std::vector<Vector3> tmpIndices;
+    std::vector<Vector2> newVs((subdivisions+1) * (subdivisions+2) / 2 * 3);
+    const Vector3 v1, v2, v3;
+    Vector3 newV1, newV2, newV3;
+
+    int i, j, k;
+    index = 0;              // unsigned int
+    float a;                // lerp alpha
+    unsigned int i1, i2;    // indices
+
+    // copy prev arrays
+    tmpVertices = vertices;
+    //tmpIndices = indices;
+
+    // iterate each triangle of icosahedron
+    for (i = 0; i < tmpIndices.size(); i++)
+    {
+        //v1 = tmpVertices[tmpIndices[i]];
+        //v2 = tmpVertices[tmpIndices[i+1]];
+        //v3 = tmpVertices[tmpIndices[i+2]];
+
+    }
+}
+
+void JGL::J3D::WireframeIcosahedron(const Color4& color, const Vector3& position, float radius, float thickness) {
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+
+    // TODO: Revise this once J3ML::Geometry::Icosahedron is implemented.
+    const float h_angle = J3ML::Math::Pi / 180.f * 72.f;    // 72 degree = 360 / 5;
+    const float v_angle = J3ML::Math::Atan(1.0f / 2.f);     // elevation = 26.565;
+
+    std::array<Vector3, 12> vertices;                   // array of 12 vertices (x,y,z)
+    int index = 0;                                      // indices
+    float z, xy;                                        // coords
+    float hAngle1 = -Math::Pi / 2.f - h_angle / 2.f;    // start from -126 at 1st row
+    float hAngle2 = -Math::Pi / 2.f;                    // start from -90 deg at 2nd row
+
+    // the first top vertex at (0,0,r)
+    vertices[0] = position + Vector3{0,0,radius};
+
+
+
+    // compute 10 vertices at 1st and 2nd rows
+    for (int i = 1; i <= 5; ++i)
+    {
+
+        z  = radius * Math::Sin(v_angle);   // elevation
+        xy = radius * Math::Cos(v_angle);   // length on XY plane
+
+        vertices[index++] = position + Vector3{xy * Math::Cos(hAngle1), xy * Math::Sin(hAngle1), z} ;
+        vertices[index++] = position + Vector3{xy * Math::Cos(hAngle2), xy * Math::Sin(hAngle2), -z};
+
+        // next horizontal angles
+        hAngle1 += h_angle;
+        hAngle2 += h_angle;
+    }
+
+    // the last bottom vertex at (0, 0, -r)
+    vertices[11] = position + Vector3{0,0, -radius};
+
+    glLineWidth(thickness);
+    glColor4ubv(color.ptr());
+    //glBindBuffer(GL_ARRAY_BUFFER, vertices.size());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), vertices.data());
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, vertices.size());
+    glColor4fv(OpenGLState::baseColor);
+}
+
+void JGL::J3D::BatchWireframeAABB(const Color4& color, const AABB* boxes, const size_t& box_count, float thickness) {
+    glColor4ubv(color.ptr());
+    glLineWidth(thickness);
+
+    glBindBuffer(GL_ARRAY_BUFFER, ShapeCache::cube_vertex_data->GetHandle());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), nullptr);
+
+    for (size_t i = 0; i < box_count; i++) {
+        Vector3 delta = (boxes[i].maxPoint - boxes[i].minPoint) / 2;
+        Vector3 center = boxes[i].Centroid();
+        glPushMatrix();
+        glTranslatef(center.x, center.y, center.z);
+        glScalef(delta.x, delta.y, delta.z);
+        glDrawArrays(GL_LINES, 0, ShapeCache::cube_vertex_data->GetLength());
+        glPopMatrix();
+    }
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glColor4fv(OpenGLState::baseColor);
+}
+
+void JGL::J3D::WireframeAABB(const Color4& color, const Vector3& pos, const Vector3& radii, float thickness) {
+    AABB aabb = {Vector3(pos.x - radii.x, pos.y - radii.y, pos.z - radii.z), Vector3(pos.x + radii.x, pos.y + radii.y, pos.z + radii.z)};
+    BatchWireframeAABB(color, &aabb, 1, thickness);
+}
+
+void JGL::J3D::BatchFillAABB(const Color4& color, const AABB* boxes, const size_t& box_count) {
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+    glColor4ubv(color.ptr());
+
+    glBindBuffer(GL_ARRAY_BUFFER, ShapeCache::cube_vertex_data->GetHandle());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), nullptr);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ShapeCache::cube_index_data->GetHandle());
+
+    glEnable(GL_CULL_FACE);
+    glCullFace(GL_BACK);
+
+    bool using_lights = false;
+    if (UsingLighting()) {
+        using_lights = true;
+        glEnableClientState(GL_NORMAL_ARRAY);
+        glBindBuffer(GL_ARRAY_BUFFER, ShapeCache::cube_normal_data->GetHandle());
+        glNormalPointer(GL_FLOAT, sizeof(float), nullptr);
+    }
+
+    for (size_t i = 0; i < box_count; i++) {
+        Vector3 delta = (boxes[i].maxPoint - boxes[i].minPoint) / 2;
+        Vector3 center = boxes[i].Centroid();
+        glPushMatrix();
+        glTranslatef(center.x, center.y, center.z);
+        glScalef(delta.x, delta.y, delta.z);
+        if (using_lights)
+            SelectLights(center);
+        glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_INT, nullptr);
+        if (using_lights)
+            ResetLights();
+
+        glPopMatrix();
+    }
+    glColor4fv(OpenGLState::oldColor);
+    if (using_lights)
+        glDisable(GL_NORMAL_ARRAY);
+    glDisable(GL_CULL_FACE);
+}
+void JGL::J3D::FillAABB(const Color4& color, const Vector3& pos, const Vector3& radii) {
+    AABB box = {pos - radii, pos + radii};
+    BatchFillAABB(color, &box, 1);
+}
+
+void JGL::J3D::FillAABB(const Color4& color, const AABB& aabb) {
+    BatchFillAABB(color, &aabb, 1);
+}
+
+void JGL::J3D::FillSphere(const Color4& color, const Sphere& sphere, unsigned int sectors, unsigned int stacks) {
+    BatchFillSphere(color, &sphere, 1, sectors, stacks);
+}
+
+void JGL::J3D::BatchFillSphere(const Color4& color, const Sphere* spheres, const size_t& sphere_count, unsigned int sectors, unsigned int stacks) {
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+
+    float r = 1;
+    std::vector<Vector3> vertices((sectors + 1) * (stacks + 1));
+    std::vector<unsigned int> indices; indices.reserve(sectors * stacks * 6);
+
+    float two_pi = 2 * J3ML::Math::Pi;
+    int index = 0;
+    for (int i = 0; i <= sectors; i++) {
+        float lat = J3ML::Math::Pi * (-0.5 + (float) i / sectors);
+        float z = J3ML::Math::Sin(lat);
+        float zr = J3ML::Math::Cos(lat);
+
+        for (int j = 0; j <= stacks; j++) {
+            float lng =  two_pi * (float) (j - 1) / stacks;
+            float x = J3ML::Math::Cos(lng);
+            float y = J3ML::Math::Sin(lng);
+
+            float pos_x = r * x * zr;
+            float pos_y = r * y * zr;
+            float pos_z = r * z;
+            vertices[index++] = Vector3(pos_x, pos_y, pos_z);
+        }
+    }
+
+    for (int i = 0; i < sectors; i++) {
+        for (int j = 0; j < stacks; j++) {
+            int first_index = i * (stacks + 1) + j;
+            int second_index = first_index + stacks + 1;
+
+            indices.push_back(first_index);
+            indices.push_back(second_index);
+            indices.push_back(first_index + 1);
+
+            indices.push_back(second_index);
+            indices.push_back(second_index + 1);
+            indices.push_back(first_index + 1);
+        }
+    }
+
+    VRamList vertex_data(vertices.data(), vertices.size());
+    VRamList index_data(indices.data(), indices.size());
+
+    glColor4ubv(color.ptr());
+    glBindBuffer(GL_ARRAY_BUFFER, vertex_data.GetHandle());
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, index_data.GetHandle());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), nullptr);
+
+    for (size_t i = 0; i < sphere_count; i++) {
+        const Vector3 position = spheres[i].Position;
+        glPushMatrix();
+        glTranslatef(position.x, position.y, position.z);
+        glScalef(spheres[i].Radius, spheres[i].Radius, spheres[i].Radius);
+        glDrawElements(GL_TRIANGLES, index_data.GetLength(), GL_UNSIGNED_INT, nullptr);
+        glPopMatrix();
+    }
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+    glColor4fv(OpenGLState::oldColor);
+}
+
+void JGL::J3D::FillSphere(const Color4& color, const Vector3& position, float radius, unsigned int sectors, unsigned int stacks) {
+    Sphere sphere = {position, radius};
+    BatchFillSphere(color, &sphere, 1, sectors, stacks);
+}
+
+void JGL::J3D::WireframeAABB(const Color4& color, const AABB& aabb, float thickness) {
+    BatchWireframeAABB(color, &aabb, 1, thickness);
+}
+
+// TODO Make it work the same as AABB batching. I couldn't get rotation to do anything more than twitch in place :(.
+void JGL::J3D::BatchWireframeOBB(const Color4& color, const OBB* boxes, const size_t& box_count, float thickness) {
+    std::array<Vector3, 8> corner_points;
+    std::array<GLuint, 24> indices =
+            {
+                    0, 1, 1, 2, 2, 3, 3, 0,
+                    4, 5, 5, 6, 6, 7, 7, 4,
+                    0, 4, 1, 5, 2, 6, 3, 7
+            };
+
+    glLineWidth(thickness);
+    glColor4ubv(color.ptr());
+    glVertexPointer(3, GL_FLOAT, sizeof(Vector3), corner_points.data());
+
+    for (size_t i = 0; i < box_count; i++) {
+        boxes[i].GetCornerPoints(corner_points.data());
+        glPushMatrix();
+        glTranslatef(boxes[i].pos.x, boxes[i].pos.y, boxes[i].pos.z);
+        glDrawElements(GL_LINES, indices.size(), GL_UNSIGNED_INT, indices.data());
+        glPopMatrix();
+    }
+    glColor4fv(OpenGLState::oldColor);
+}
+
+void JGL::J3D::WireframeOBB(const Color4& color, const OBB& obb, float thickness) {
+    BatchWireframeOBB(color, &obb, 1, thickness);
+}
+
+/*
+void JGL::J3D::WireframeOBB(const Color4& color, const Vector3& position, const Vector3& radii, const Matrix3x3& orientation, float thickness) {
+    WireframeOBB(color, OBB(position, radii, orientation. * Vector3::UnitX, rotation * Vector3::UnitY, rotation * Vector3::UnitZ), thickness);
+}
+ */
+
+void JGL::J3D::DrawCubicBezierCurve(const Color4& color, const Vector3& controlA, const Vector3& pointA,
+                               const Vector3& pointB, const Vector3& controlB, int subdivisions, float thickness) {
+    Vector3 last = controlA;
+    const Vector3& first = controlB;
+    for (int i = 0; i < subdivisions; ++i)
+    {
+        float alpha = (float) i / (float) subdivisions;
+        Vector3 step = J3ML::Algorithm::Bezier(alpha, controlA, pointA, pointB, controlB);
+        DrawLine(color, last, step, thickness);
+        last = step;
+    }
+
+    // Have to manually draw the last segment of the curve.
+    DrawLine(color, last, first, thickness);
+}
+
+void JGL::J3D::DrawVertexArray(const Color4& color, const VertexArray& vertex_array, const Vector3& position) {
+    if (!inJ3D)
+        Logger::Error("Drawing J3D element before J3D begin.");
+    glColor4ubv(color.ptr());
+
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glBindBuffer(GL_ARRAY_BUFFER, vertex_array.GetVertices()->GetHandle());
+    glVertexPointer(3, GL_FLOAT, 0, nullptr);
+
+    glPushMatrix();
+    glTranslatef(position.x, position.y, position.z);
+        //glScalef(1,1,1);
+        glDrawArrays(GL_TRIANGLES, 0, vertex_array.GetVertices()->GetLength());
+    glPopMatrix();
+
+        //glDrawElements(GL_LINES, vertex_array.GetIndices()->GetLength(), GL_UNSIGNED_INT, nullptr);
+        //std::cout << vertex_array.GetVertices()->GetLength() << std::endl;
+    glColor4fv(OpenGLState::oldColor);
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+}

src/renderer/TextRendering.cpp

@@ -1,4 +1,5 @@
 #include <JGL/JGL.h>
+#include "../internals/include/internals.h"
 
 
 #if __linux__
@@ -157,7 +158,7 @@ namespace JGL {
         glTexCoordPointer(2, GL_FLOAT, sizeof(Vector2), texcoords.data());
         glDrawArrays(GL_TRIANGLES, 0, (int) vertices.size() * 6);
         glBindTexture(GL_TEXTURE_2D, 0);
-        glColor4f(1, 1, 1, 1);
+        glColor4fv(OpenGLState::oldColor);
         glDisableClientState(GL_TEXTURE_COORD_ARRAY);
         glDisable(GL_TEXTURE_2D);
     }
@@ -243,7 +244,7 @@ namespace JGL {
             glDisable(GL_CULL_FACE);
 
         glBindTexture(GL_TEXTURE_2D, 0);
-        glColor4f(1, 1, 1, 1);
+        glColor4fv(OpenGLState::oldColor);
         glDisableClientState(GL_TEXTURE_COORD_ARRAY);
         glDisable(GL_TEXTURE_2D);
         glPopMatrix();

src/types/Font.cpp

@@ -4,6 +4,7 @@
 #include <iostream>
 #include <glad/glad.h>
 #include <JGL/logger/logger.h>
+#include <JGL/JGL.h>
 
 #if __linux__
     #include <freetype2/ft2build.h>
@@ -58,25 +59,38 @@ namespace JGL {
         return Detail::InitTextEngine();
     }
 
+    Font::Font(const unsigned char* data, const size_t& size) {
+        if (Detail::ft == nullptr)
+            throw std::runtime_error("Error::FREETYPE: FT_Library was not initialized before attempting to load a font!");
+
+        if (FT_New_Memory_Face(Detail::ft, data, size, 0, &face))
+            throw std::runtime_error("Error::FREETYPE: Failed to load font!");
+
+        unsigned int new_index = 0;
+        for (const auto& f : Detail::fonts)
+            if (f.index >= new_index)
+                new_index = f.index + 1;
+        index = new_index;
+
+        Detail::fonts.push_back(*this);
+        std::cout << "Loaded font from memory at " << static_cast<const void*>(data) << " with index " << new_index << std::endl;
+    }
+
     Font::Font(const std::filesystem::path& path) {
         if (Detail::ft == nullptr)
             throw std::runtime_error("Error::FREETYPE: FT_Library was not initialized before attempting to load a font!");
 
-        Font font;
-        if (FT_New_Face(Detail::ft, path.string().c_str(), 0, &face)) {
-            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
+        if (FT_New_Face(Detail::ft, path.string().c_str(), 0, &face))
             throw std::runtime_error("Error::FREETYPE: Failed to load font!");
-            //return -1;
-        }
-        unsigned int newIndex = 0;
-        for (const auto& f : Detail::fonts)
-            if (f.index >= newIndex)
-                newIndex = f.index + 1;
 
-        index = newIndex;
-        Detail::fonts.push_back(font);
-        std::cout << "Loaded font from " << path << " with index " << newIndex << std::endl;
-        //return newIndex;
+        unsigned int new_index = 0;
+        for (const auto& f : Detail::fonts)
+            if (f.index >= new_index)
+                new_index = f.index + 1;
+
+        index = new_index;
+        Detail::fonts.push_back(*this);
+        std::cout << "Loaded font from " << path << " with index " << new_index << std::endl;
     }
 
     Font::~Font() {
@@ -119,14 +133,18 @@ namespace JGL {
             return extents;
         }
 
-        jlog::Warning("Measuring a font size that is not cached, This is *super* slow.");
-        FT_Set_Pixel_Sizes(this->face, ptSize, ptSize);
+        jlog::Warning("Measuring a font size that is not cached, Defaulting to Jupiteroid.");
+        FT_Set_Pixel_Sizes(Fonts::Jupiteroid.face, ptSize, ptSize);
 
         for (const char& c : text) {
+            // TODO: Fix segfault
+            //FT_GlyphSlot slot = Fonts::Jupiteroid.face->glyph;
+            //auto glyph_index = FT_Get_Char_Index(Fonts::Jupiteroid.face, c);
             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);
+            //auto error = FT_Load_Glyph(Fonts::Jupiteroid.face, glyph_index, FT_LOAD_DEFAULT);
+            auto error = FT_Load_Glyph(this->face, glyph_index, FT_LOAD_DEFAULT);
 
             if (error)
                 continue;
@@ -146,9 +164,6 @@ namespace JGL {
             if (extents.y < ptSize)
                 extents.y = ptSize;
         }
-
         return extents;
     }
-
-
 }

src/types/Light.cpp

@@ -33,8 +33,8 @@ JGL::SpotLight::SpotLight(const Vector3& position, const Matrix3x3& ro_mat, floa
     this->quadratic_attenuation = quadratic_attenuation;
 }
 
-Vector3 JGL::LightBase::GetPosition() const {
-    return {position.x, position.y, position.z};
+Vector4 JGL::LightBase::GetPosition() const {
+    return position;
 }
 
 Color4 JGL::LightBase::GetAmbient() const {

src/types/Material.cpp

@@ -0,0 +1,31 @@
+#include <JGL/types/Material.h>
+#include <J3ML/LinearAlgebra/Vector4.hpp>
+
+JGL::Material::Material(const Color4& ambient_reflection, const Color4& diffuse_reflection, const Color4& specular_reflection, const Color4& light_emission, float& shine) {
+    ambient_ref = ambient_reflection;
+    diffuse_ref = diffuse_reflection;
+    specular_ref = specular_reflection;
+    emission = light_emission;
+    shininess = shine;
+}
+
+void JGL::Material::SetActiveMaterial(const Material& material) {
+    Vector4 ambient = { material.ambient_ref.RN(), material.ambient_ref.BN(), material.ambient_ref.GN(), material.ambient_ref.AN() };
+    Vector4 diffuse = { material.diffuse_ref.RN(), material.diffuse_ref.BN(), material.diffuse_ref.GN(), material.diffuse_ref.AN() };
+    Vector4 specular = { material.specular_ref.RN(), material.specular_ref.BN(), material.specular_ref.GN(), material.specular_ref.AN() };
+    Vector4 emission = { material.emission.RN(), material.emission.BN(), material.emission.GN(), material.emission.AN() };
+
+    // Determine which faces we're going to apply this material to.
+    GLenum face = GL_FRONT;
+    if (glIsEnabled(GL_CULL_FACE)) {
+        GLint current; glGetIntegerv(GL_CULL_FACE_MODE, &current);
+        if (current == GL_FRONT)
+            face = GL_BACK;
+    }
+
+    glMaterialfv(face, GL_AMBIENT, ambient.ptr());
+    glMaterialfv(face, GL_DIFFUSE, diffuse.ptr());
+    glMaterialfv(face, GL_SPECULAR, specular.ptr());
+    glMaterialfv(face, GL_EMISSION, emission.ptr());
+    glMaterialf(face, GL_SHININESS, material.shininess);
+}

src/types/RenderTarget.cpp

@@ -30,7 +30,7 @@ void JGL::RenderTarget::SetActiveGLRenderTarget(const RenderTarget& render_targe
     glViewport(0,0, render_target.GetDimensions().x, render_target.GetDimensions().y);
 }
 
-Vector2 JGL::RenderTarget::GetDimensions() const {
+Vector2i JGL::RenderTarget::GetDimensions() const {
     return size;
 }
 
@@ -71,12 +71,12 @@ JGL::RenderTarget::RenderTarget(const JGL::Texture* texture, const Color4& clear
     glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
     glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
     this->clear_color = clear_color;
-    this->size = texture->GetDimensions();
+    this->size = {(int) size.x, (int) size.y};
     this->texture = texture;
     texture_created_by_us = false;
 }
 
-JGL::RenderTarget::RenderTarget(const Vector2& size, const Color4& clear_color, bool use_depth, MSAA_SAMPLE_RATE sample_rate) {
+JGL::RenderTarget::RenderTarget(const Vector2i& size, const Color4& clear_color, bool use_depth, MSAA_SAMPLE_RATE sample_rate) {
     if (size.x < 1 || size.y < 1)
         Logger::Fatal("Creating a render target where the color attachment is empty?");
 
@@ -124,7 +124,7 @@ JGL::RenderTarget::RenderTarget(const Vector2& size, const Color4& clear_color,
         SetMSAAEnabled(sample_rate);
 }
 
-std::vector<GLfloat> JGL::RenderTarget::GetData() const {
+std::vector<GLfloat> JGL::RenderTarget::GetPixels() const {
     std::vector<GLfloat> data(GetDimensions().x * GetDimensions().y * 4);
     GLuint current_fbo = GetActiveGLFramebufferHandle();
 
@@ -132,12 +132,11 @@ std::vector<GLfloat> JGL::RenderTarget::GetData() const {
     glReadPixels(0, 0, GetDimensions().x, GetDimensions().y, GL_RGBA, GL_FLOAT, data.data());
     glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
     return data;
-
 }
 
-void JGL::RenderTarget::Resize(const Vector2& new_size) {
+void JGL::RenderTarget::Resize(const Vector2i& new_size) {
     if (!texture_created_by_us)
-        Logger::Fatal("Resizing a texture that already existed?");
+        Logger::Error("Resizing a Render Target that does not own it's texture?");
 
     GLuint current_fbo = GetActiveGLFramebufferHandle();
     GLfloat old_clear_color[4];
@@ -145,8 +144,8 @@ void JGL::RenderTarget::Resize(const Vector2& new_size) {
     glGetIntegerv(GL_VIEWPORT, old_viewport);
     glGetFloatv(GL_COLOR_CLEAR_VALUE, old_clear_color);
 
-    /* If what was previously not part of the renderable area is big enough to
-     * just set the new size without reading data back */
+    /* If what was previously not part of the renderable area is big enough
+     * to just set the new size. */
     if (new_size.x <= texture->GetDimensions().x && new_size.y <= texture->GetDimensions().y) {
         size = new_size;
 
@@ -182,7 +181,7 @@ void JGL::RenderTarget::Resize(const Vector2& new_size) {
     glClearColor(cc.RedChannelNormalized(), cc.GreenChannelNormalized(), cc.BlueChannelNormalized(), cc.AlphaChannelNormalized());
     glViewport(0,0, size.x, size.y);
 
-    texture = new Texture(Vector2((float) biggest, (float) biggest));
+    texture = new Texture(Vector2(biggest, biggest));
     glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->GetGLTextureHandle(), 0);
 
     glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
@@ -204,7 +203,7 @@ JGL::RenderTarget::~RenderTarget() {
         delete texture;
 }
 
-bool JGL::RenderTarget::TextureCreatedByRenderTarget() const {
+bool JGL::RenderTarget::OwnsTexture() const {
     return texture_created_by_us;
 }
 
@@ -216,19 +215,20 @@ bool JGL::RenderTarget::MSAAEnabled() const {
     return msaa_sample_rate != MSAA_SAMPLE_RATE::MSAA_NONE;
 }
 
-void JGL::RenderTarget::SetMSAAEnabled(JGL::MSAA_SAMPLE_RATE sample_rate) {
+bool JGL::RenderTarget::SetMSAAEnabled(JGL::MSAA_SAMPLE_RATE sample_rate) {
     // If we'd be setting the same sample_rate we already have.
     if (sample_rate == msaa_sample_rate)
-        return;
+        return false;
 
     // If we'd be rendering onto a texture and not a plain render target we don't want this.
-    if (!TextureCreatedByRenderTarget())
-        return;
+    if (!OwnsTexture())
+        return false;
 
     // Remove it if they request no msaa or if what they requested is different than what they already have.
     if (sample_rate == MSAA_SAMPLE_RATE::MSAA_NONE || msaa_sample_rate != MSAA_SAMPLE_RATE::MSAA_NONE) {
         if(using_depth)
             glDeleteRenderbuffers(1, &msaa_depth_buffer);
+
         glDeleteRenderbuffers(1, &msaa_render_buffer);
         glDeleteFramebuffers(1, &msaa_framebuffer_object);
 
@@ -239,7 +239,7 @@ void JGL::RenderTarget::SetMSAAEnabled(JGL::MSAA_SAMPLE_RATE sample_rate) {
 
         // Only return here if they specifically requested no MSAA. else continue to change mode.
         if (sample_rate == MSAA_SAMPLE_RATE::MSAA_NONE)
-            return;
+            return true;
     }
 
     GLuint current_fbo = GetActiveGLFramebufferHandle();
@@ -271,11 +271,11 @@ void JGL::RenderTarget::SetMSAAEnabled(JGL::MSAA_SAMPLE_RATE sample_rate) {
 
     if (failure)
         SetMSAAEnabled(MSAA_SAMPLE_RATE::MSAA_NONE);
+    return failure;
 }
 
-void JGL::RenderTarget::Blit() const {
-    if (MSAAEnabled() && TextureCreatedByRenderTarget()) {
-
+void JGL::RenderTarget::MSAABlit() const {
+    if (MSAAEnabled() && OwnsTexture()) {
         // Save the GL state.
         GLuint current_fbo = GetActiveGLFramebufferHandle();
         GLint current_draw_fbo = 0;
@@ -308,10 +308,9 @@ void JGL::RenderTarget::Blit() const {
     }
 }
 
-void JGL::RenderTarget::Blit(const JGL::RenderTarget& source, JGL::RenderTarget* destination) {
-    //TODO allow blitting onto an FBO that is bigger but not smaller.
-    if (source.size != destination->size)
-        Logger::Warning("Blitting a render target but they're not the same size?");
+void JGL::RenderTarget::Blit(const JGL::RenderTarget& source, JGL::RenderTarget* destination, const Vector2i& position) {
+    if (source.GetDimensions().x > destination->GetDimensions().x || source.GetDimensions().y > destination->GetDimensions().y)
+        Logger::Warning("Blitting a Render Target onto another Render Target but the destination Render Target is too small?");
 
     // Save the GL state.
     GLuint current_fbo = GetActiveGLFramebufferHandle();
@@ -323,7 +322,7 @@ void JGL::RenderTarget::Blit(const JGL::RenderTarget& source, JGL::RenderTarget*
     // Draw the contents of one into the other.
     glBindFramebuffer(GL_READ_FRAMEBUFFER, source.framebuffer_object);
     glBindFramebuffer(GL_DRAW_FRAMEBUFFER, destination->framebuffer_object);
-    glBlitFramebuffer(0, 0, source.size.x, source.size.y, 0, 0, source.size.x, source.size.y, GL_COLOR_BUFFER_BIT, GL_NEAREST);
+    glBlitFramebuffer(0, 0, source.size.x, source.size.y, position.x, position.y, position.x + source.size.x, position.y + source.size.y, GL_COLOR_BUFFER_BIT, GL_NEAREST);
 
     // Put the GL state back.
     glBindFramebuffer(GL_READ_FRAMEBUFFER, current_read_fbo);
@@ -331,9 +330,15 @@ void JGL::RenderTarget::Blit(const JGL::RenderTarget& source, JGL::RenderTarget*
     glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
 }
 
+void JGL::RenderTarget::Blit(const Texture* source, RenderTarget* destination, const Vector2i& position) {
+    auto temp = new RenderTarget(source);
+    Blit(*temp, destination);
+    delete temp;
+}
+
 // To avoid repeatedly allocating and deallocating.
 JGL::RenderTarget* pixel = nullptr;
-void JGL::RenderTarget::Blit(const Color4& color, const Vector2& position, JGL::RenderTarget* destination) {
+void JGL::RenderTarget::Blit(const Color4& color, const Vector2i& position, JGL::RenderTarget* destination) {
     if (position.x > destination->size.x || position.y > destination->size.y)
         Logger::Warning("Blitting outside of the renderable area of the destination.");
 

src/types/Texture.cpp

@@ -189,4 +189,24 @@ namespace JGL
         // In 99% of cases you wouldn't want this. But in this scenario we do.
         operator delete(this_texture);
     }
+
+    Texture::Texture(const Texture* textures, const size_t& texture_count) {
+        float length = 0;
+        float biggest_y = 0;
+
+        for (int i = 0; i < texture_count; i++) {
+            if (biggest_y < textures[i].texture_size.y)
+                biggest_y = textures[i].texture_size.y;
+            length += textures[i].texture_size.x;
+        }
+
+        auto* result = new Texture(Vector2(length, biggest_y));
+        auto render_target = RenderTarget(result);
+
+        int next_x = 0;
+        for (int i = 0; i < texture_count; i++) {
+            RenderTarget::Blit(&textures[i], &render_target, Vector2i(next_x, 0));
+            next_x += textures[i].GetDimensions().x;
+        }
+    }
 }

src/types/VRamList.cpp

@@ -170,6 +170,10 @@ std::vector<GLfloat> JGL::VRamList::GetDataF() const {
     if (element_array_buffer)
         JGL::Logger::Warning("Getting data as GLfloat but the buffer data is GLuint?");
 
+    bool vertex_array_enabled = glIsEnabled(GL_VERTEX_ARRAY);
+    if (!vertex_array_enabled)
+        glEnableClientState(GL_VERTEX_ARRAY);
+
     GLint current_buffer = 0;
     glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &current_buffer);
     glBindBuffer(GL_ARRAY_BUFFER, list_handle);
@@ -184,6 +188,8 @@ std::vector<GLfloat> JGL::VRamList::GetDataF() const {
     glUnmapBuffer(GL_ARRAY_BUFFER);
     glBindBuffer(GL_ARRAY_BUFFER, current_buffer);
 
+    if (!vertex_array_enabled)
+        glDisableClientState(GL_VERTEX_ARRAY);
     return data;
 }
 
@@ -289,7 +295,6 @@ JGL::VRamList::VRamList(const JGL::VRamList& rhs) {
     if (rhs.element_array_buffer) {
         auto data_array = rhs.GetDataUI();
         this->load(data_array.data(), data_array.size());
-        return;
     }
 
     auto data_array = rhs.GetDataF();

src/types/VertexArray.cpp

@@ -1,20 +1,23 @@
 #include <JGL/types/VertexArray.h>
+#include <JGL/logger/logger.h>
+#include "../internals/include/WavefrontOBJ.h"
+#include "../internals/include/AMO.h"
 
 using namespace JGL;
 
-VRamList VertexArray::GetVertices() const {
+const VRamList* VertexArray::GetVertices() const {
     return vertices;
 }
 
-VRamList VertexArray::GetIndices() const {
+const VRamList* VertexArray::GetIndices() const {
     return indices;
 }
 
-JGL::VRamList VertexArray::GetNormals() const {
+const VRamList* VertexArray::GetNormals() const {
     return normals;
 }
 
-VRamList VertexArray::GetTextureCoordinates() const {
+const VRamList* VertexArray::GetTextureCoordinates() const {
     return texture_coordinates;
 }
 
@@ -144,48 +147,43 @@ VertexArray::VertexArray(const Vector3* vertex_positions, const long& vp_length,
                          const Normal* vertex_normals, const long& vn_length, const TextureCoordinate* texture_coordinates, const long& vt_length) {
 
     // TODO decimator. This is a total waste of memory as it sits.
-    vertices = VRamList(vertex_positions, vp_length);
+    this->vertices = new VRamList(vertex_positions, vp_length);
+
+    local_vertices.resize(vp_length);
+    memcpy(local_vertices.data(), vertex_positions, sizeof(Vector3) * vp_length);
+
     if (vertex_indices && vi_length) {
-        indices = VRamList(vertex_indices, vi_length);
+        indices = new VRamList(vertex_indices, vi_length);
         local_indices.resize(vi_length);
         memcpy(local_indices.data(), vertex_indices, sizeof(unsigned int) * vi_length);
     }
 
     if (vertex_normals && vn_length) {
-        normals = VRamList(vertex_normals, vn_length);
+        normals = new VRamList(vertex_normals, vn_length);
         local_normals.resize(vn_length);
         memcpy(local_normals.data(), vertex_indices, sizeof(Normal) * vn_length);
     }
 
     if (texture_coordinates && vt_length) {
-        this->texture_coordinates = VRamList(texture_coordinates, vt_length);
-        local_normals.resize(vt_length);
+        this->texture_coordinates = new VRamList(texture_coordinates, vt_length);
+        local_texture_coordinates.resize(vt_length);
         memcpy(local_texture_coordinates.data(), texture_coordinates, sizeof(TextureCoordinate) * vt_length);
     }
 
 }
 
-VertexArray::VertexArray(const std::vector<Vertex>& vertex_positions, const std::vector<unsigned int>& vertex_indices,
-                         const std::vector<Normal>& vertex_normals, const std::vector<TextureCoordinate>& texture_coordinates) {
-    vertices = VRamList(vertex_positions.data(), vertex_positions.size());
-    local_vertices = vertex_positions;
-
-    if (!vertex_indices.empty()) {
-        indices = VRamList(vertex_indices.data(), vertex_indices.size());
-        local_indices = vertex_indices;
-    }
-
-    if (!vertex_normals.empty()) {
-        normals = VRamList(vertex_normals.data(), vertex_normals.size());
-        local_normals = vertex_normals;
-    }
-
-    if (!texture_coordinates.empty()){
-        this->texture_coordinates = VRamList(texture_coordinates.data(), texture_coordinates.size());
-        local_texture_coordinates = texture_coordinates;
-    }
+VertexArray::VertexArray(const std::vector<Vertex>& vertex_positions, const std::vector<unsigned int>& vertex_indices, const std::vector<Normal>& vertex_normals, const std::vector<TextureCoordinate>& texture_coordinates) {
+    *this = VertexArray(vertex_positions.data(), vertex_positions.size(), vertex_indices.data(), vertex_indices.size(), vertex_normals.data(), vertex_normals.size(), texture_coordinates.data(), texture_coordinates.size());
 }
 
 bool VertexArray::Static() {
     return animations.empty();
 }
+
+VertexArray VertexArray::LoadWavefrontOBJ(const std::string& file_text) {
+    return JGL::LoadWavefrontOBJ(file_text);
+}
+
+VertexArray VertexArray::LoadAMO(const std::string& file_text) {
+    //return JGL::LoadAMO(file_text);
+}