Blender Git Loki

Code was clean, some problems were fixed.
The system can store and retrieve the cache information from a file.

Merged revision(s) 60459-60650 from trunk/blender into soc-2013-dingto.

Volume:
* Style and code cleanup for volume.h closure file.
* Revert rename of henyey-greenstein closure to isotropic, the actual node name is still unsure, but the closure name should be called what it is.

Make sure the mesh has a material assigned when entering texture paint
mode. This will prevent crashing. Thanks to Marc Dion for the report.

painstakingly merge with trunk -r60636

svn merge ^/trunk/blender 59138:60616

Merging r60595 through r60596 from trunk into blender-2.69-release

Merging r60592 through r60594 from trunk into blender-2.69-release

Slightly better calculation for overlap factor in paint stroke system,
it was being calculated from spacing multiplied by size instead of only
spacing. Now brush spacing should be scaled according to all factors
(pressure, size etc) by using a ratio factor between default and scaled
sizing.

Volume:
* Remove the "start" variable from the sampler code.
This was hard coded to 0.0f and therefore had no effect on the calculations.

Volume:
* More style and code cleanup.

Volume:
* Some renaming and move common epsilons to #defines.

Volume:
* Some code cleanup for shadow_blocked_new, renamed to shadow_blocked_volume() now.
* Also re-order the parameters, so the first 4 match the shadow_blocked() function.

rigidbody: Code cleanup

Remove duplicate code.

merge with trunk -r60501

tiled textures did not support gradient colors.

Texture painting: Fix painting with size pressure sensitivity scales the
texture as well. Do not modify the brush size in texture painting,
instead cache the size in the paint structures. Projective painting
should work correctly now. 2D still has a swimmy effect which I have
isolated in partial brush image update (new coordinates seem to be OK)

Merging r60468 through r60470 from trunk into soc-2013-depsgraph_mt

Merging r60198 through r60467 from trunk into soc-2013-depsgraph_mt

Merged revision(s) 60385-60458 from trunk/blender into soc-2013-dingto.