It’s not the greatest, and it’s certainly not the most optimised, but i’ve made a raytracer i’d like to showcase! 
It uses Parallel Luau and EditableImages to render raytraced images in realtime, albeit with severe performance issues and low resolution.
An image:
The place file:
RaytraceTest.rbxl (286.3 KB)
Improvements can certainly be made, if you’d like to provide constructive feedback, feel free to!
I gave this a play closer to when you released it, and it’s fun! I enjoy the custom character controller since it reminds me of games like Marble Blast Ultra.
I’d love to see you iterate on this 
A quick, small update
I switched to buffers instead of rectangles, which has improved performance significantly, also allowing me to increase the resolution.
Fun size update: I’ve now made several optimisation budget cuts making the raytracer run a lot faster
(and also made mirrors more detailed, including shadows and lighting!)
(The resolution is higher here, which made it slower)
Silly little update again
I added:
A more optimised way of rendering, resulting in fracturing visual glitches, but a large increase in performance and maximum resolution.
Post processing! Hue, saturation, brightness, gamma and color reduction. You can see most of them being changed in realtime here. (warning: you may feel sick)
Perlin noise textures on everything. Everything now looks goopy, and that’s lovely
Place file:
RaytraceTest.rbxl (330.0 KB)
