Computer graphics is a fun topic
I'm no expert in computer graphics, but I wanted to know how they projected objects in a virtual 3D space to a 2D on the screen. Especially the math behind it. So I decided to take a course on it.
It was one of the best courses I have taken.
Started with Blender
One of the first things I did that are related to computer graphics was with Google SketchUp. Yes, SketchUp was still owned by Google. Later I switched to Blender and started making realistic renderings.