I go over the background knowledge you should really understand before checking out other shader tutorials. This information is relevant to most 3D rendering applications like Blender, Unity, Unreal, etc...
Even if you're just curious about how 3D graphics work in general, this video should be of interest to you.
CatLike Coding matrices tutorial: https://catlikecoding.com/unity/tutorials/rendering/part-1/
CatLike Coding rendering tutorials: https://catlikecoding.com/unity/tutorials/rendering/
0:00 Intro
0:30 3D to 2D conversion
1:23 Rasterization & Coloring
2:33 Texturing
4:08 Vertex/Fragment function connection
5:11 Lighting
8:52 Summary
