It helped me tremendously when I was into game development back in college. The math was always the biggest hangup for me. I'm in healthcare software now, so YMMV :)
There are several sites that teach OpenGL, which is one of the main APIs today:
* https://learnopengl.com
* http://www.opengl-tutorial.org/beginners-tutorials/tutorial-...
* https://open.gl
It helped me tremendously when I was into game development back in college. The math was always the biggest hangup for me. I'm in healthcare software now, so YMMV :)