Blender Git Loki

UI: Prevent scrollbars from getting too small to grab

Differential Revision: https://developer.blender.org/D5001

Fix T65448 - Outliner - Show all inside in disabled collection crash

GPU: Fix Restart index bug

Restart index can have been changed in another context and the static
var can get out of sync. A better solution is to set the restart index
when binding the VAO. It also have less perf impact.

Fix T65364 Corrupted mesh display on macOS

Cleanup: style, use braces in GPU

fix collada: get Alpha and Emission from principled BSDF Shader

Cleanup: style, use braces in RNA

Cleanup: Cleanup: style, use braces for collada

UI: Fix wrong use of icons in the Object > Visibility panel when using Cycles

Cleanup: style, use braces in draw

Cleanup: style, use braces in makesrna

Cleanup: use const arguments

Cleanup: remove unused arg to wm_event_add_ghostevent

Fix T65391: Wrong drag threshold for mouse motion

Fix T65328: Offset when outliner gains focus

I'm not actually not sure under which circumstances
this code is actually doing something useful.

Cleanup: differentiate drag-and-drop from drag events

Markers: Click-drag in empty area to box select markers

To make this work, other changes were necessary:
* To select a specific marker you have to click more exactly on the icon.
* Moving markers with click-drag only works when starting on a marker.

Additionally this patch implements that all markers are deselected,
when the user clicks in an empty area.

Reviewers: billreynish, brecht

Differential Revision: https://developer.blender.org/D4975

Fix T65399: crash playing animation after applying smoke flow modifier

missing DEG update.

Reviewers: sergey

Maniphest Tasks: T65399

Differential Revision: https://developer.blender.org/D4996

Fix T65408: GPencil Weight Paint, strength and falloff are ignored when painting a lesser vertexweight

The value was clamped to minimum value before checking the influence.

Fix T65294: Orbit navigate gizmo fails in paint modes

Fix T65439: quick explode error

Material setup for quick explode was assuming a shader with a "BSDF"
output socket connected to the material output node whereas other socket
names are valid ("Shader", "Emission", "BSSRDF", "Holdout"...)