webgl exposes OpenGL ES to javascript. i doubt jcl will port the engine to javascript.
Are you telling me the everybody from the site below who adopt WebGl are Dumb
WebGL is not only javascript, it's c++,and , many other, it's connected direcytly to the Gpu OpenCl like a Plug an Play.
Programing in a high way make a good engine yeah c++ after we script.
http://www.khronos.org/about/
