Why webGl I may ask ? There are much better graphics libraries out there.Is your project or application has to be limited to webgl ? I have designed a few applications in 3djs and 3Js,FXAA etc.Let me know about the project ,I may try to implement it using other graphics libraries if that's not an issue.
Oh, it doesn't have to be webgl, thats the only one I really knew of.
Messaging you now.