blender/source/gameengine
Sergey Sharybin 9f7961b6b1 Optimization and threading fix for shapekeys weights calculation
This commit fixes two different issues, which were caused by
how weights are being calculated for relative shapekeys.

Weights for key block used to saved in KeyBlock DNA structure,
which lead to situations when different objects could start
writing to the same weights array if they're sharing the same
key datablock.

Solved this in a way so weights are never stored in KeyBlock
and being passed to shapekeys routines as an array of pointers.
This way weights are still computed run-time (meaning they're
calculated before shapekey evaluation and freed afterwards).

This required some changes to GameEngine as well, to make it
never cache weights in the key blocks.

Another aspect of this commit makes it so weight for a given
vertex group is only computed once. So if multiple key blocks
are using the same influence vertex group, they'll share the
same exact weights array. This gave around 1.7x speedup in
test chinchilla file which is close enough to if we've been
caching weights permanently in DNA (test machine is dual-code
4 threads laptop, speedup measured in depsgraph_mt branch,
trunk might be not so much high speedup).

Some further speed is optimization possible, but it could be
done later as well.

Thanks Brecht for idea of how the things might be solved in
really clear way.

--
svn merge -r58786:58787  ^/branches/soc-2013-depsgraph_mt
2013-08-19 10:36:39 +00:00
..
BlenderRoutines BGE: Flipping vsync constants so VSYNC_ON is 0. 2013-08-17 02:06:45 +00:00
Converter Optimization and threading fix for shapekeys weights calculation 2013-08-19 10:36:39 +00:00
Expressions BGE: Fix for [#34398] "«illegal operator» in Expression Controller" reported by Andrey Kashlak (andreymal) 2013-07-22 22:46:17 +00:00
GameLogic style cleanup: indent/whitespace 2013-08-19 01:48:44 +00:00
GamePlayer Made modifiers_getVirtualModifierList safe for threading 2013-08-19 09:05:34 +00:00
Ketsji style cleanup: indent/whitespace 2013-08-19 01:48:44 +00:00
Network clang/cmake - quiet warnings for external libs and reference moto as a system include. 2013-07-15 08:26:16 +00:00
Physics BGE fix [#21488] Pumpkin in Gamekit Tutorial flips upside down 2013-07-24 00:32:26 +00:00
Rasterizer Optimization and threading fix for shapekeys weights calculation 2013-08-19 10:36:39 +00:00
SceneGraph BGE: Making sure m_left, m_right, m_parent, m_radius, and m_client_object are initialized in the SG_Tree constructors. 2013-08-03 05:01:57 +00:00
VideoTexture BGE: Making sure m_objType is initialized in the BlendType (VideoTexture) constructor. 2013-08-03 05:01:50 +00:00
CMakeLists.txt BGE: Removing the source files for the PHY interfaces since they just contained virtual destructors. This means we had license and doc blocks for 3 lines of code, which seemed silly. This also means that ge_phys_common no longer needs to be built as a library. I tested this with CMake and SCons using GCC; hopefully this doesn't break other systems. 2013-02-24 07:09:39 +00:00
SConscript BGE: Removing the source files for the PHY interfaces since they just contained virtual destructors. This means we had license and doc blocks for 3 lines of code, which seemed silly. This also means that ge_phys_common no longer needs to be built as a library. I tested this with CMake and SCons using GCC; hopefully this doesn't break other systems. 2013-02-24 07:09:39 +00:00