WebGL2_bench

webgl2 benchmark with new feature
-GPU direct copy
-transform feedback
-primitive restart
-instance drawing(rewrite the classic webgl demo https://github.com/arodic/jellyfish)
-drawbuffers
To enable WebGL2 in your chrome, run chrome through command line and add --use-unsafe-es3-apis flag, if you clone this repo and want to run locally, also add --allow-access-file-from-file flag.