I'm currently working (as a side project) on a software to draw pixel art. It is on my gitLab, and far from done.

During the lockdown, I've played with rendering, doing a preview of 3D printed model. More information on my Portfolio. It used standard computer graphics technique. I'm using deferred shading(kind of, as for now I cannot use MRT with Three js). the layer effect is computed on the fly with a technique similar to parralax mapping(no slicing). Specular and diffuse lighting with real-time approximation (hack) of subsurface scattering. If you have any comments and questions, feel free to contact me!