Blender Git Loki

Cycles Cleanup: Remove unneccessary color management call

WIP: More compiler error fixing

Enable lines disabled too

Try to detect unused tiles when rendering with Cycles and skip loading them

WIP: More changes

TMP

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

Modify copy function after merge

Merge branch 'blender2.8' into greasepencil-object

Conflicts:
source/blender/blenkernel/intern/gpencil.c

Add missing declarations

This option limits visibility of the glew.h header to just bf_gpu and intern_gawain
this is to highlight areas in the code that still directly do opengl calls or use
opengl types.

This is in preparation for supporting alternative rendering back-ends.

Reviewers: brecht, fclem

Differential Revision: https://developer.blender.org/D3304

UI: rename various nodes

- RoughnessU = Roughness
- RoughnessV = Radial Roughness
- Primary Reflection Roughness = Undercoat Roughness

This rename does **not** affect the existing Hair node.

Remove unused closure

Merge remote-tracking branch 'origin/blender2.8' into udim

Support 3D texture painting across tiles

Merge branch 'master' into blender2.8

The Eevee AO node supports the new Normal socket, but ignores Distance,
Samples, Inside and Only Local settings.

Cycles: change Ambient Occlusion shader to output colors.

This means the shader can now be used for procedural texturing. New
settings on the node are Samples, Inside, Local Only and Distance.

Original patch by Lukas with further changes by Brecht.

Differential Revision: https://developer.blender.org/D3479

Update signatures to use Lukas's new linear_rgb_to_gray

Remove leftover debug printf

Don't add image tiles for which no file was found

UI: fix redundant scrolling in the redo panel