Blender Git Loki

Temp fix to compile theme

Better default values for hair guides.

Merge branch 'greasepencil-object' into temp-greasepencil-vfx

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'greasepencil-object' into temp-greasepencil-vfx

Increase multisample texture precission

When use FX get glitches.

Fix wrong engine name

Fix crash when creating guide curves on an empty groom object.

More changes to Blur effect

Still there are problems

Cycles: Fixed broken displacement

Cycles: Fixed broken bump mapping

Cycles: improved texture differentials for bump maps, added texture differntials to displacement maps

Cycles: added ray differentials to henyey-greenstein phase function

Cycles: Moved texture coordinate differential creation to after all bump maps are created. This should improve texture caching in scenes with bump/displacement maps.

Cycles: Fixes for texture caching, behavior with auto convert off was broken, color space was misinterpreted sometimes.
Note: Texturing with OSL is currently broken.

Cycles: Smaller fixes for differentials, taking dNdu inot account when getting N from a bump shader

Ccyles: texture differentials now respect the hidden mapping node inside the image texture node.

Cycles: fix for mip map paths

Cycles: Changed Mip Map names to replace, not add to suffix
Added oiio_make_tx() call to Cycles' Python API

Cycles: improved ray differentials for specular/glossy closures with DNDU/V enabled