Blender Git Loki

UI: cleanup tooltip bounds clamping

Wasn't properly clamping on the window minimum.

Fixed collection header name

UI: show tool name in tip w/ icon-only display

UI: use horizontal alignment for expanded enums

With the property separate option, the direction of expanded enums
now follows the current layout.

Fix T56660: Use horizontal enums w/ image template

Cleanup: pep8

Correct toolbar tips for non sculpt modes

backport of new linux library build system to FM 2.79 branch

after upgrade to Linux Mint 19 locally, nothing did work anymore basically... and in order to use this with the blender docker build system, it needed the new(er) cmake based library building system.

UI: tweak object viewport display panel, use grid flow.

UI: use grid flow for metadata panel.

Fix T56544: Crash on startup with Radeon + Win 7

Testing GLEW_ARB_texture_gather is not sufficient in this case. We need to
test if GL_ARB_texture_gather is defined in the shader, which is always true
on some NVIDIA drivers who does not support it...
So trying to make everything work.

UI: reorganize render output and encoding panels for single columns.

This will look a bit better once horizontal expanded enums work.

Fix T56667: missing sockets with Cycles render layer nodes in compositing.

Merge branch 'master' into blender2.8

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

ClosthCollision: fully avoid computing BVHTree when we have no collision objects to test against.

Followup to rBc6bbe6c5aac29, much more elegant solution to the problem. ;)

Fix T56423: Fully broken drag'n'drop parenting in Outliner.

`BKE_libblock_find_name()` expects ID names *without* ID type 'prefix'...

Cleanup: Split function up

We would need to at least support one more PBVH building
here, trying to squeeze everything into one function will
make it really hard to read and follow.

Spelling fixes in comments and descriptions, patch by luzpaz.

Differential Revision: https://developer.blender.org/D3668

Fix T56622: crash and other bugs deleting scenes.

Simplify library remapping code to handle special collection/object links
in postprocess. Previously base contained the actual object link which
needed special handling in preprocess, now objects are linked through
collection and the base cache can be updated in postprocess.

Weightpaint mode: Removing barbarian batch tagging on engine init

This was introduced in the original implementation of weightpaint
in 2.8 (20f95de6ba2d). But this is very shortsighted, we can't assume only one
object will be edited at once, nor should we tag things during drawing.

There is a chance this introduces "bugs". If it does, we then tackle them in the
proper way (usually tagging DEG after operators changing the weight paint data).