I'm wondering if there is support for writing simple custom shaders of any kind for use in Sketchfab.
For instance, I'd like to have a panning uv shader as is commonly used in game engines for things like flowing water, speed lines, and even blinking lights. It would also be nice to be able to have a shader with fresnel transparency for cheated glow meshes or other effects.
Is this already possible? If not, I would love to request that ability, or to be able to import opengl or glsl shaders. Any information about this would be appreciated.