PortableGL
tiny-renderer
| PortableGL | tiny-renderer | |
|---|---|---|
| 7 | 2 | |
| 927 | 168 | |
| - | - | |
| 9.0 | 10.0 | |
| 11 days ago | about 5 years ago | |
| C | Python | |
| MIT License | MIT License |
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PortableGL
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Olive.c: a simple graphics library that does not have any dependencies
Yeah PortableGL will never be completely fully featured, not even for OpenGL 3.3 since I'll definitely never do the geometry shader and probably not the transform feedback. But specifically it'll never have the earlier immediate mode stuff, or some of the big 4.0 stuff like the tessellation shaders. I have been meaning to add the DSA functions where they make sense. They'd be really simple to implement.
Actually a few days ago someone sent me a pull request adding an interesting project to my README
https://github.com/rswinkle/PortableGL/commit/e0652b4dff266d...
So now if I were to try to sum up all the OpenGL software implementations I can think of,
TinyGL (and modern improved forks) = OpenGL 1.1-1.3 ish
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Hacker News top posts: Dec 31, 2021
PortableGL: An implementation of OpenGL 3.x-ish in clean C\ (23 comments)
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PortableGL: An implementation of OpenGL 3.x-ish in clean C
Not entirely related to the subject of OpenGL, but I really like how the author has decided to lay out this project. It's pretty hard to beat the convenience of a single header (or single header/single source) distribution for C libraries, but library development gets progressively harder as the project gets bigger as more code is added to the (usually hard to navigate) header file. Here, the author does their development with multiple files as one normally would, but when a new version is released they run the generate_gl_h[1] script that concatenates everything into a .h file for distribution. Simple yet flexible! This is also how SQLite[2] distributes its builds. It's a pattern that I'm using myself in some unreleased projects.
[1] https://github.com/rswinkle/PortableGL/blob/master/src/gener...
- Any OpenGL implementations for vector-drawing hardware?
tiny-renderer
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Olive.c: a simple graphics library that does not have any dependencies
Cool use of Webassemly. See also the 500 line https://github.com/ssloy/tinyrenderer or the 100 line Python/numpy version https://github.com/rougier/tiny-renderer
Both cpu renderers with texture mapping and Wavefront obj import without further dependencies.
- Introduction to GPUs with OpenGL
What are some alternatives?
tinygl - TinyGL : a Small, Free and Fast Subset of OpenGL*
tinyrenderer - A brief computer graphics / rendering course
tinyraytracer - A brief computer graphics / rendering course
learn-wgpu - Guide for using gfx-rs's wgpu library.
GLM - OpenGL Mathematics (GLM)
aoc-2020 - Advent of Code 2020 in 25 Different Languages
LearnOpenGL - Code repository of all OpenGL chapters from the book and its accompanying website https://learnopengl.com
rusterizer - Bare-bones software renderer written in Rust
incbin - Include binary files in C/C++
RetroFPSStudio - The public repo of Retro FPS Studio (RFS), for educational reading and not for reuse. See license.
xplain - Interactive demos