У вашего броузера проблема в совместимости с HTML5
http://www.blenderhd.com/
The newest version of Pixar's RenderMan engine can be used in Blender! Here's how to get started.
Download RenderMan: https://renderman.pixar.com/view/non-commercial-renderman
Download the addon: https://github.com/bsavery/PRMan-for-Blender
BA thread with slightly more info and some cool tests: http://blenderartists.org/forum/showthread.php?375734-Pixar-RenderMan-for-Blender!