Blender Git Loki

GPencil: Fix crash when object is NULL

Geometry Nodes: duplicate referenced data layers in attribute api

Support reading all asset meta-data from external repositories

When displaying a repository that is not the "Current File" one, we can now
show all the meta-data of its assets in the UI. Editing is currently possible,
but changes will be lost on reload of the repository. Editing should simply not
be disabled for now.

Note that this also works for custom properties. So assets can store custom
properties, and the Asset Browser can show them, even if they are stored in an
external repository.
One important thing is that custom asset properties must not store pointers to
other data-blocks, but the BPY should forbid this already for assets.

Addresses T82860.

Fix Python error print when no asset file is active

Merge branch 'greasepencil-object' into greasepencil-io

Merge branch 'master' into greasepencil-object

Merge branch 'asset-metadata' into asset-browser

Add custom property support for assets

I didn't do this earlier because I was afraid it would make reading of asset
data (and asset data only!) difficult. Mainly because custom properties could
store pointers to other data, that would have to be read too then (e.g. an
object). But turns out, we can easily disable custom pointers to other
data-blocks, so reading stays simple :).

Merge branch 'asset-metadata' into asset-browser

Merge branch 'master' into asset-metadata

Merge branch 'master' into soc-2020-io-performance

Cleanup: improve naming convention for geometry node exec functions

Merge branch 'master' into asset-browser

bring back optix optimisation, add some timing information

Merge branch 'master' into xr-actions-D9124

XR: Only allow one active modal action/subaction

Prevents unwanted behavior when a modal operator is bound to multiple
inputs (e.g. when an action has multiple subaction paths). Can be
refactored in the future to support "bimanual" interaction for some
operators.

alembic: cleanup

alembic: refactor data storage, add support for animated transforms

alembic: set the frame rate on the procedural

Geometry Nodes: Add boilerplate code for attribute math node

This code doesn't actually do anything, but it provides a base for an
implementation and exposes the the necessary interface to the UI.