I was pointed to this site about shaders today:
https://www.shadertoy.com/
Read a very little bit of it and the shaders seem implemented by code in WEBGL. Visually, it is really pretty...but heavy, my machine with chrome hogs on a few on full screen.
Anyways, not much time to explore it adequately (but it is booked:)), but I thought to post it here as it may come to be meaningfull to GLB html5 support... In a wild day dream, could this be used in GLB (multiplatform) somehow? Like the sfxr stuff? ;/
Have fun.