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Thursday, March 2, 2017

WebGL 2 fur simulation

WebGL 2 recently became available in latest Firefox and Chrome so it was tempting to try out some of its new features. One of the most important WebGL 2 (and OpenGL ES 3.0, which it is based upon) features is instanced rendering. This feature reduces draw calls overhead by drawing the same geometry multiple times with altered transformations. It was supported in certain implementations of WebGL 1 too but required a certain extension. Most useful for foliage and particles, this technique is also quite often used to simulate fur.