I remember when a ray-traced scene 320x240 took 30 minutes to draw with only a few shapes and light sources.

Seems very light (no pun intended) on content.

Computer graphics is all about hacks to save expensive operations.

Topics I would expect:

- Triangularization: Converting solid shapes to triangle meshes.

- Triangle rendering: Triangles + transforms -> screen-parallel irregular trapezoids -> scanline drawing.

- Painter's algorithm vs. W- vs. Z-buffering.

- Clipping.

- Scene representation.

- Quaternions.

- Bump mapping.

- Texture mapping.

- Mipmapping.

- Shading - massive topic. http://aicdg.com/oldblog/cg/2018/02/04/common-shading-algori...

Also: FreeVGA - http://web.stanford.edu/class/cs140/projects/pintos/specs/fr...