fixed #2295 fixed a bug that some waring message of WebGL shows when load loading scene.
fixed #2295 fixed the problem that cc.Grid3D and cc.TiledGrid3D doesn't work
fixed #2295 fixed the problem that cc.Grid3D and cc.TiledGrid3D doesn't work
Merge pull request #1014 from dingpinglv/Iss2295_Migrate3DEffects

fixed #2295 fixed a bug that some waring message of WebGL shows when load loading scene.