Blender Git Loki

code cleanup: unused defines & some formatting.

code cleanup: avoid doing multiplications within macro FTOCHAR() per pixel when applying brush color.

CMake: Since Audaspace now requires Boost, auto enable Boost if WITH_AUDASPACE is enabled.

minor cleanup to to selecting the shortest path, change some variable names and make edge/face modes share the cost calculation function.

add mesh editmode Ctrl+RMB to select the shortest path between faces, works the same as for edges.
Request from Kjartan.

further cleanup for selecting the shortest path, remove the need for EDBM_index_arrays_* functions.

code improvements for selecting the shortest path for mesh editmode,
this will give some speedup but its mainly to simplify the function.

- use bmesh adjacency data, was building its own data, left over from pre-bmesh.
- use a flag to store visited edges rather then a hash.
- store edge pointers in the heap rather then index values (was converting back and fourth a lot).

code cleanup:
linearrgb_to_srgb_ushort4_predivide() was calling `linearrgb_to_srgb(t) * alpha` twice in the FTOUSHORT macro, which gcc didn't optimize out.

code cleanup: quiet double promotion warnings

fix [#26472] Decimate overlaps polygons

decimate - degenerate edges are now added back into the heap (with an dummy cost), so when surrounding geometry may be modified and the previously degenerate edge re-evaluated after.
The C++ LOD decimator did this too.

Merged changes in the trunk up to revision 51985.

itask: reworked conditionals for osx version compatibility

Fix #33107: cycles fixed threads 1 was still having two cores do work,
because main thread works as well.

Bugfix [#32939] Fluid sim reversed on X and Y with animated Control object

Bug was introduced in r48531 by accident since fluid control object abuse a variable for another flag which got reset.

Use CMAKE_LIBRARY_ARCHITECTURE instead of hardcoded stuff like x86_64-linux-gnu! Now should work with any multiarch!

Fix #33114: crash with render frame update script and GLSL.

Bugfix #32806

Two fixes for NDOF device:

- RNA item for setting turntable or trackball for ndof was using wrong variable
- Some moment the option "rotate around selection" stopped to work for ndof.

Note: the latter option doesn't do dolly in, use shift+ndof for that.

UI message fixes...

code cleanup: use min/max functions rather then macros.