Blender Git Loki

Fix T61825: animated images not working immediately when enabling auto refresh.

Fix T61929: crash on undo in some files with local view.

Comments: add comments for new transform struct members.

Cleanup: minor improvements to transform comments.

Cleanup: Use const for static number.

Also use double indent instead of mixed tab/spaces.

Cleanup: pep8

Fix macOS OpenMP build error when using a build folder name with spaces.

Patch by Campbell.

Cleanup and refactor sequencer proxy properties panel

Split SEQUENCER_PT_proxy to:

SEQUENCER_PT_proxy_settings
- global settings and operators
SEQUENCER_PT_strip_proxy
- proxy settings per strip

Author: Guillaume M (mathers)

Reviewed by: ISS, campbellbarton

Differential Revision: https://developer.blender.org/D4262

Hair Particle: Fix issue on OSX due to hardware accelerated subdivision

Workaround to tranform feedback not working on mac.
On some system it crashes (see T58489) and on some other it outputs
garbage (see T60171).

So instead of using transform feedback we render to a texture,
readback the result to system memory and reupload as VBO data.
It is really not ideal performance wise, but it is the simplest
and the most local workaround that still uses the power of the GPU.

This should fix T59426, T60171 and T58489.

UI: hierarchical nesting

Use correct hierarchical nesting in camera and mesh obdata properties

UI: un-expand enum

Enums don't work well when expanded vertically like this

UI: Properties hierarchical nesting

Make hierarchy more clear and consistent in Render, Object and Particles

Cleanup/refactor clnor code: add high-level helpers to set custom normals.

Now it will be simpler for code jsut wanting to preserve custom normals
around to set them, without having to add same boiler plate code all the
time around actual code.

Fix (unreported) assert in modifier evaluation of weighted normals.

Currently modifier stack assumes there are no poly normals data passed
around, so in case a modifier generates such data, it has to clean it up
after usage.

Whole handling of normals is a bit annoying and week currently, we can
probably enhance that once fully per-mesh item type cddata masks are in?

'Fix' T61942: Triangulate modifier breaks custom normals.

Not a bug, but supporting preservation of custom normals in that
specific modifier makes sense, in game pipeline contexts.

Could also ease work of IO add-ons that want to export
triangulated geometry...

CustomData: add function to clear layers' flags.

We only had one to set those flags, up til now...

UI: Particles

Nicer alignment in Vertex Groups panel

UI: File menu tweaks.

* Group Export with Save, Save As, Save Copy.
* Group Import with Link, Append.

Suggested by @fsiddi

UI: Minor tweak on Object Type Visibility popover.

Mirror order of items as in 'Add' object menu.

GPencil: Cleanup style