[szimmer1]

This has nothing to do with the Amiga, but shameless plug for a cool in-browser ray-tracer we made for a school project http://camargo.github.io/tracejs/#/

Rendering times become exponentially slower with more objects in the scene (100% native Javascript, hence 0 hardware acceleration) but it's fun to play with if you're in the mood!

[david-given]

If you want the other extreme, these days you can do real-time raytracing entirely in an OpenGL shader:

https://www.shadertoy.com/view/XdfXDB

(There's no geometry in that scene --- the shader is run for each pixel independently!)