Awesome
opengl_reference
This is going to be a repository of mostly modern (3.3/4.x) OpenGL programs. Most of these will be either exploring/demonstrating concepts, testing my own OpenGL helper libraries, or be framework/template programs for starting new projects.
Actually I've started using this repo to create small programs to test what is supposed to happen (assuming the drivers are obeying the spec which isn't always a safe assumption) for various situations to help me in developing PortableGL (and creating regression tests for it).
I think I'll reorganize the src directory with subdirectories for tests and another for testing OpenGL ES behavior as well. PortableGL, while mostly 3.x-ish already has some 4.x features and while I have always said it was targeting a core profile that wasn't strictly accurate. There's no reason not to be more compatible and support OpenGL ES features as well where they make sense.
There are better repositories of modern OpenGL programs to use for learning because they're more complete/organized, they go with a book etc. However, this is mostly for my own personal use/code and will be constantly changing. Writing a bunch of OpenGL programs will also force me to learn glm and finish my own OpenGL math/helper code.
Download
Get the source from Github.
The table below lists only a handful of the programs in this repo. Maybe I'll split them up by category (templates/frameworks, feature examples, demos, "games") later. Those listed use my own math library, rsw_math, but there are often glm versions as well, ie glm_modelviewer.cpp.
| Program | Description | Image |
|---|---|---|
| ex1.c | Hello Triangle |  |
| ex2.c | Hello Interpolation |  |
| gears.c | Classic gears demo. Switch between polygon modes with p. |  |
| modelviewer.cpp | Load a model from ./media/models. Switch between Gouraud and Phong shading with s. Switch between polygon modes with p. |  |
| texturing.cpp | Switch between textures with 1, filtering modes with f, zoom/rotate with arrow keys |  |
| grass.cpp | Based on example in superbible, uses flying controls, WIP |  |
| point_sprites.c | Point Sprite example, uses multitexturing and discard keyword in fragment shader to "disolve" textured point. |  |
| sphereworld_color.cpp | Based on SphereWorld example from SB with ADS lighting, moving/rotating objects, with flying controls. |  |
| flying.cpp | Template with 6DOF flying controls ala Descent. Mouse + WASDQE + LShift + Space |  |
| left_handed.cpp | OpenGL is left handed. |  |