Blender Git Loki

Prepare buffer stroke to save points

Fix merge errors

Merge branch 'blender2.8' into greasepencil-object

Merge remote-tracking branch 'origin/master' into cycles_texture_cache

forgot to free duplilist after usage, and re-added previously removed depsgraph relation

relation is necessary to smoothly looking continued motion after dynamic fracture

attempt to add more detail for dynamic fracturing

backport of master fix for https://developer.blender.org/T56969

allows to let the branch run with python 3.7 too

transform fix for external centroid-based constraints

Panel based, single column layout for the editing category

small fix for minimum mass and UI float display precision changes

testing now against being smaller than minimum mass 0.001 and setting it to 0.001 instead
of testing against 0 (useless with float)
adapted displayed UI precision with breaking threshold, cluster breaking threshold, breaking distance and cluster breaking distance.

Merge branch 'blender2.8' into userpref_redesign

fix for external constraints (centroid)

crash fix attempts for split to island function

Shorter name for hair edit settings property.

try to avoid crashes due to excessive usage of immediate draw buffer

since the buffersize is limited to 4 MB (but it effectively crashed above usage of 3 MB,
probably due to 4 bit padding), there is a hard limit of usage ratio to be taken into account. The debug drawer counts the bytes used and increases an epsilon value as softlimit
first. This filters out short lines / very close verts and reduces the buffer usage. If that is not enough, there is a hard limit at 95% buffer usage. Then line drawing is skipped.

got physics visualization operational again

kudos to hypersomniac for pointing me to the debug draw api

attempt to fix pack group and export to objects

Outliner: Gray out collections only when they are invisible

Re-factor of 4521d3e7074d.

Fix/workaround issues in pose and edit mode

[re-committing]

Edit mode was unable to select, pose mode was unable to move bones.

Outliner: Implement 3 levels of viewport visibility

Now collection and objects can be either:
* Hidden for all the view layers.
* Hidden for a view layer but not necessarily for all others.
* Visible for a view layer but not necessarily for all others.

Regarding icons: Whatever we decide to use for the "Hidden for all view
layers" needs to be a toggle-like icon. Because when viewing "Scenes"
instead of "View Layer" in the outliner we should be able to edit the
collection "Hidden for all the view layers" as an on/off option.

See T57857 for discussion.