Learning Rust while learning more complex techniques for shaders using OpenGL with the Glium library.
I've used WebGL a few times, but the most impressive thing I made was a really simple Raymarcher. Hoping to do some cool raytracing, transformations w/ matricies, frustum culling, etc etc.
For now, this requires OpenGL v4.1 because I just want to mess around with stuff that works on my computer :P