Blender Git Loki

Fix previous commit.

undoexp: Update for new 'ID memaddress unique' feature.

Merge branch 'undo-experiments' into undo-experiments-swap-reread-datablocks

Cycles: Add support for denoising in the viewport

The OptiX denoiser can be a great help when rendering in the viewport, since it is really fast
and needs few samples to produce convincing results. This patch therefore adds support for
using any Cycles denoiser in the viewport also (but only the OptiX one is selectable because
the NLM one is too slow to be usable currently). It also adds support for denoising on a
different device than rendering (so one can e.g. render with the CPU but denoise with OptiX).

Reviewed By: #cycles, brecht

Differential Revision: https://developer.blender.org/D6554

undoexp: Update for 'unique ID memaddress' change.

Merge branch 'id-ensure-unique-memory-address' into undo-experiments

Initial rough idea of 'unique ID address' change.

Goal of this code is to ensure we only ever use a given memory address
once, for all IDs generated in a bmain.

This is crucial if we want to be able to use ID pointers instead of ID
names in undo speedup work, when re-using existing IDs.

Fix T73656: Use BKE_brush_alpha_get in texture paint

The code was using brush->alpha directly, so the alpha value from
UnifiedPaintSettings was not used when eneabled.

Reviewed By: brecht

Maniphest Tasks: T73656

Differential Revision: https://developer.blender.org/D6804

Fix T70039, T68707: issues when opening .blend file from Finder on macOS

* Missing close dialog displayed to warn about unsaved changes.
* No reaction when the file was opened on a different desktop.

Differential Revision: https://developer.blender.org/D6765

GPencil: Refactor: Fix blend modes broken

GPencil: Refactor: Add per mask inversion capability

With this commit, masks can be inverted per layer. Inversion means the
mask becomes subtractive instead of additive. The base visibility does not
change depending on the first type (i.e: if ther is nothing in the mask
layer, nothing will be masked regardless of the mask type).

Nodes: Add dynamic label support for Math Nodes

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D6375

Cleanup: Sculpt/Paint, use correct types and iterator variable declaration

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D6788

GPencil: Change Stroke Order tooltip

GPencil: Reset Mask list index when remove first element

GPencil: Replace Add mask with popover menu

Also removed iinternal property used.

Cleanup: Sculpt, Comment formatting

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D6792

Fix T73706: Crash after disabling dyntopo with multires modifier

ss->multires is set in sculpt_update_object, which is not called just
after disabling dyntopo, so it needs to be checked before running
reshapeFromCCG

Reviewed By: campbellbarton, brecht

Maniphest Tasks: T73706

Differential Revision: https://developer.blender.org/D6801

Merge branch 'blender-v2.82-release'

Fix Attempt to free NULL pointer

Assert when snapping `Selection to ...` but without objects.
Missed in the last commit.