Let me cite one thing: https://github.com/ssloy/tinyrenderer/wiki/Lesson-6:-Shaders-for-the-software-renderer https://github.com/ssloy/tinyrenderer/wiki/Lesson

Let me cite one thing: https://github.com/ssloy/tinyrenderer/wiki/Lesson-6:-Shaders-for-the-software-renderer https://github.com/ssloy/tinyrenderer/wiki/Lesson-6:-Shaders... "Recall that all my source code here is meant to be compared with yours. Do not use my code, write your own. I am a bad programmer." If you want to improve the text, the wiki is open. If you want to improve the source code, fork -> code -> pull request