Sergey Sharybin 57d235d9f4 Cycles: Optimize storage of QBVH node by one float4
The idea is to store visibility flags for leaf nodes only since visibility check
for inner nodes costs too much for QBVH hence it is not optimal to perform.

Leaf QBVH nodes have plenty of space to store all sort of flags, so we can make
nodes one element smaller, saving noticeable amount of memory.
2014-12-25 02:50:49 +05:00
2014-11-14 11:00:26 +01:00
2013-12-24 22:57:27 +06:00
2014-08-08 06:00:49 +10:00
2010-10-13 14:44:22 +00:00
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