Blender Git Loki

Merge branch 'blender2.8' into greasepencil-object

Merge remote-tracking branch 'remotes/origin/blender2.8' into soc-2018-npr, also fix errors in modifier code.

# Conflicts:
# release/scripts/startup/bl_ui/properties_data_camera.py
# release/scripts/startup/bl_ui/properties_data_speaker.py
# release/scripts/startup/bl_ui/properties_render.py
# release/scripts/startup/bl_ui/properties_scene.py
# source/blender/makesrna/intern/rna_scene.c

Merge branch 'blender2.8' into greasepencil-object

Cycles: Added option for custom texture cache path.

GP: Fix problem with Onion Skin after last commit

GP: Redesign drawing cache to support particles

Full redesign of the cache system used for drawing strokes and handle derived frame data.

Before, the cache was saved in bGPdata and a hash was used to manage several objects with the same datablock.

Old design made the use of particles very inefficient and prone to bugs and segment faults, and especially when this was mixed with onion skinning and multiple objects using same datablock. Also, there were some conflicts with the depsgrah logic (the old design was done before despgraph was in place) that made the use of hash not working.

The new design saves the data in the object runtime struct and avoid the use of any hash to find the right data. This improves the speed and reduce a lot the complexity of the code, memory allocation, hash overload and adds full support for particles and reused datablocks.

The particles can reuse the modifiers and shader effects of the original grease pencil object.

Merge branch 'blender2.8' into greasepencil-object

Setting object position is propagated to the physics simulation even for dynmamic objects.

The velocity is also reset to 0, which makes sense after forcing a dynamic object position.
Known issues:
- in interactive mode, changing an object position by rna causes a simulation step
- setting any part of the object position or orientation causes the full matrix to be applied to physics => missing true rigid body API

Made opti edge flip use actual face normals and fiddled a bit with cusps again

Cycles: Texture Cache toggle is now properly updated.

Cycles: Fixed OpenCL kernel build on Windows.

Cycles: Fixed build on Linux and OpenCL.

Revert "UI: Changes to the 'single-column' layout to have left-aligned labels on top of the values"

This reverts commit 00e00481758f9f9a9186bb8ad8f9ee2afb27ee5a.

UI: Changes to the 'single-column' layout to have left-aligned labels on top of the values

Merge branch 'origin/blender2.8' into experimental-build

Merge branch 'origin/blender2.8' into temp-ui-layout-2.8

UI: tweak individual panels

UI: Changes to the 'single-column' layout to have left-aligned labels on top of the values

Merge branch 'master' of git.blender.org:blender into cycles_embree

Interactive mode: new scene.flag SCE_INTERACTIVE to update the depsgraph without frame change but running physics.

Interactive button added on time line.