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3e7389eaf2
blender/intern
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Sergey Sharybin 3e7389eaf2 Cycles: Speedup of Christensen-Burley SSS falloff function 
The idea is simply to pre-compute fitting and parameterization
in the bssrdf_setup() function and re-use the values in both
sample() and eval().

The only trick is where to store the pre-calculated values and
the answer is inside of ShaderClosure->custom{1,2,3}. There's
no memory bump here because we now simply re-use padding fields
for the pre-calculated values. Similar trick we can do for other
BSDFs.

Seems to give nice speedup up to 7% here on my desktop with
Core i7 CPU, SSE4.1 kernel.
2016-02-04 15:29:58 +01:00
..
atomic Atomics: Use _InterlockedAnd8 direction for 342bit MSVC 2016-01-27 14:16:02 +01:00
audaspace Remove SCons building system 2016-01-04 14:20:48 +05:00
container Remove SCons building system 2016-01-04 14:20:48 +05:00
cycles Cycles: Speedup of Christensen-Burley SSS falloff function 2016-02-04 15:29:58 +01:00
dualcon Remove SCons building system 2016-01-04 14:20:48 +05:00
eigen Remove SCons building system 2016-01-04 14:20:48 +05:00
elbeem Remove SCons building system 2016-01-04 14:20:48 +05:00
ffmpeg Fix video FFmpeg nt being able to produce video files due to usage of deprecated settings 2014-04-15 00:15:09 +06:00
ghost Fix T47300: SHIFT TAB, CTRL SHIFT TAB shortcuts does not toggle snap, snap mode on off anymore. 2016-02-02 21:27:33 +01:00
glew-mx Remove SCons building system 2016-01-04 14:20:48 +05:00
guardedalloc Remove SCons building system 2016-01-04 14:20:48 +05:00
iksolver Remove SCons building system 2016-01-04 14:20:48 +05:00
itasc Remove SCons building system 2016-01-04 14:20:48 +05:00
libmv Compositor: Speedup movie (un)distortion operation 2016-01-26 11:44:43 +01:00
locale Remove SCons building system 2016-01-04 14:20:48 +05:00
memutil Remove SCons building system 2016-01-04 14:20:48 +05:00
mikktspace Remove SCons building system 2016-01-04 14:20:48 +05:00
moto Remove SCons building system 2016-01-04 14:20:48 +05:00
opencolorio Remove SCons building system 2016-01-04 14:20:48 +05:00
opensubdiv CMake: Remove per-module Werror settings 2016-01-30 00:04:52 +01:00
openvdb OpenVDB: Get rid of hardcoded TBB variables and enabled for Linux buildbot 2016-01-27 12:27:35 +01:00
rigidbody Remove SCons building system 2016-01-04 14:20:48 +05:00
smoke Smoke (fire): Move spectrum code from C++ (intern/) to C code (BLI) 2016-01-09 04:48:31 +01:00
string Remove SCons building system 2016-01-04 14:20:48 +05:00
utfconv Remove SCons building system 2016-01-04 14:20:48 +05:00
CMakeLists.txt Implementation of OpenVDB as a possible cache format for smoke 2016-01-23 08:39:40 +01:00