Blender Git Loki

Merge branch 'master' into blender2.8

UI: split theme draw style into separate field

Was using UI_BLOCK_LOOP to control draw style,
this meant we couldn't use popup theme colors for cases
where it the interface has the same purpose as a popup but happens
not to use this flag.

UI: disable register for grease pencil select

Avoid showing in redo panel

UI: disable register for insert text

Hides redo panel.

UI: key binding draw code didn't set line-width

UI: workaround for glitch redo panel glitch

Remaining fix for multiple text-boxes

As mentioned in d81aeb60fe75 the alignment for multiple text boxes should all
respect the same overall padding.

Vertical alignment is fully implemented now.

Revert wrong add-on folder update

GP: Fix performance problem with big files

During drawing, the depsgrah was tagged to update and this produced a full copy of the datablock. This tag was done in order to get the right data in drawing engine, but this added a great overhead while drawing and the response of the pen was not good.

Now, the depsgraph is not tagged and the drawing engine uses the original copy data of the buffer datablock. This is not a problem because only can draw in one window at time.

Eeevee: update to match recent voronoi GLSL features for Cycles.

Differential Revision: https://developer.blender.org/D3680

Merge branch 'blender2.8' into asset-engine

Conflicts:
release/scripts/startup/bl_ui/space_filebrowser.py
source/blender/blenloader/intern/readfile.c
source/blender/blenloader/intern/versioning_280.c
source/blender/blenloader/intern/versioning_defaults.c
source/blender/editors/include/UI_interface.h
source/blender/editors/space_view3d/space_view3d.c
source/blender/windowmanager/WM_api.h
source/blender/windowmanager/intern/wm_dragdrop.c
source/blender/windowmanager/intern/wm_files_link.c

Texture paint: properly implement image slots for principled BSDF node.

Now we can create new base color, roughness, metallic, specular, normal,
bump and displacement images, and linked them to the appropriate socket.

Also fixes image nodes inside groups not being visible.

Differential Revision: https://developer.blender.org/D3679

Cleanup: fix compiler warnings.

Fix Cycles principled BSDF black with transmission and IOR 1.0.

Textbox removal and creation should update text data

Eevee: Fix assert when using transparent shadows

Was missing some UBO bindings.

Fix T56627: Crash because of incomplete LightCache

Fix assert when toggling Xray mode after going to Solid and lookedev/eevee

Eevee: Cleanup DoF implementation

Eevee: Lookdev: Fix memleak