Blender Git Loki

Task scheduler ported form CYcles to C

Replaces ThreadedWorker and is gonna to be used
for threaded object update in the future and
some more upcoming changes.

But in general, it's to be used for any task
based subsystem in Blender.

Originally written by Brecht, with some fixes
and tweaks by self.

Fix #37002: cycles viewport render shows white on old graphics cards with no
support for non-power-of-two textures.

Fix #37045: blender internal SSS rendering black on some system when the SSS
reflection color was set to 1 1 1. BSSRDF parameter fit not converging properly
due to float precision issues.

Further tweak for dual quaternion armature deform problem, tweak the epsilon
value to solve some more cases.

Revert both own r60700 and r60702. API behavior for expanded enums is completly inconsistent, but again, better to do such changes (soft-breaking API) in bulk...

Add poll function for overlay panel. Thanks to Thomas Dinges for the report!

Fix #37047, Expanded Enum Alignment glitching.
The enum item buttons in the node header change their alignr when switching the tree type, due to different things being shown in the header (this rarely happens in other panels, so it doesn't turn
up easily). The new alignnr needs to be copied to existing block buttons in ui_but_update_from_old_block to ensure the enum items get aligned to each other.

Followup to own r60700, fix was not correct... In fact, beahivor of expanded enums is not consistent with other properties, as there labels are never shown. Keep it for now, though, as this would break many scripts and ui file, better to do this in bulk!

Thanks to DingTo and plasmasolutions for notifying the issue.

Code cleanup: Remove some more unused cycles SSS code, related to the lookup table.

Fix obvious error in expanded enum layout code, given uiname would never be use...

More fixes for PSD support in SCons scirpts...

transform - use 2d float's for the viewport center (allows for vector math functions to be used more easily).

code cleanup: use const's for vector args.

Fix dual quaternion armature deform giving erratic results in some cases. Bug
was encountered in a Kiribati rig file.

The problem was actually in the matrix to quaternion conversion function. One
problem is that it was using the wrong matrix indices in case of an ill defined
matrix trace. Besides that FLT_EPSILON was too small to detect cases where
float precision becomes a problem.

Fix crash running Blender in background mode, caused by revision 60633.

Code cleanup: remove some unused cycles SSS code.

Fix build scripts related to PSD support. Both CMake and SCons builds were broken.

OSX/scons: change again conditional for ftemplate, it can be ambigous with xcode5, cause there is still gcc and llvm-gcc symlinks to clang, so env['CXX'] is bad test then

scons: fix WITH_PSD compiling, still i think muddled naming is used here, todo: cleanup

Fix [#37049] Default keybindings: Text editor auto-complete accepts Return, but not Numpad Enter