[Bf-cycles] Building BVH using GPU

Zhanpeng Feng jumpjump88 at hotmail.com
Tue May 13 21:39:15 CEST 2014

Cycles is awesome in terms of ray tracing speed. However, the BVH building process can take quite a bit of time for complicated scenes. I googled and found that in 2012 BVH building speed was improved by 5x to 10x by multi-threading. I am wondering if it is possible to move BVH building to GPU and speed it up even more or if there is a barrier for doing so. 
Thanks a lot,Feng 		 	   		  
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