8f9599d17e
This patch will use compute shaders to create the VBO for hair. The previous implementation uses tranform feedback. Timings master (transform feedback with GPU_USAGE_STATIC between 0.000069s and 0.000362s Timings transform feedback with GPU_USAGE_DEVICE_ONLY. between 0.000057s and 0.000122s Timings compute shader between 0.000032 and 0.000092s Future improvements: * Generate hair Index buffer using compute shaders: currently done single threaded on CPU, easy to add as compute shader. Reviewed By: fclem Differential Revision: https://developer.blender.org/D11057