Brecht Van Lommel 3847d0c0df Cycles code internals: add initial implementation of decoupled ray marching.
This basically records all volumes steps, which can then later be used multiple
time to take scattering samples, without having to step through the volume
again. From the paper:

"Importance Sampling Techniques for Path Tracing in Participating Media"

This works only on the CPU, due to usage of malloc/free.
2014-03-29 13:03:50 +01:00
2014-03-28 14:41:04 +06:00
2014-03-10 15:17:22 +06:00
2013-12-24 22:57:27 +06:00
2010-10-13 14:44:22 +00:00
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