Blender Git Loki

Merge branch 'master' into greasepencil-edit-curve

Conflicts:
source/blender/blenkernel/intern/gpencil_geom.c

added BVH

Fixed most render tests with light tree off.

Buildbot: Cleanup, typo in logging

Fix issue with uint in headers in recent own commit.

Would break on some systems/compilers...

Property Search: Make ctrl-F work, and alt-F to clear

Fix (unreported) wrong size of UserPreferences' `dupflag` parameter.

Adding volume obdata option to `eDupli_ID_Flags` enum made it go beyond
the 16 bits of a short... Also, enums should typically be stored in
unsigned integers.

Cleanup: use explicit enum type for duplicate option of `BKE_object_duplicate`

Using enum type itself in implementations, and uint in headers (as using
enums types in headers is a pain when enum are not defined and used in a
single same header file...).

Cleanup: remove hierarchy parameter from `BKE_collection_duplicate`

It makes no sense to deep-copy a collection and not also copy its
children collections... Parameter was not used anymore anyway.

So now this duplicate function will always at least deep-duplicate all
of its children collections, recursively.

Cleanup: get rid of `BKE_collection_copy`.

We want to get rid of those for all ID types ultimately, but that one
was only used in one place, being the only one calling
`BKE_collection_duplicate` without hierarchical duplicate and parent
collection pointer, effectively using the full power of the complex deep
duplication code for a mere `BKE_id_copy` call...

This will allow for further cleanup in duplicate code.

Merge branch 'master' into greasepencil-object

Conflicts:
release/scripts/startup/bl_operators/__init__.py
source/blender/blenkernel/intern/gpencil_geom.c

Added options to display the liquid grids 'Phi In', 'Phi Out' and 'Phi Obstacle'.

Refactor: move .blend read/write of mesh deform modifier to MOD_meshdeform.c

Cleanup: remove unnecessary indirection for .blend read/write of curvemapping

Buildbot: Support multiple workers talking to single codesign server

Is achieved by replacing hard-coded signed/unsigned file names with
"<uuid>" which acts as a "request ID". This way multiple workers can
put their requests into a single directory without collisions. The
code sign server will handle the requests sequentially in an unknown
order.

Buildbot: Don't use builder name in the build directory

The directory layout on worker goes as following:

<Worker>
<Builder Name>
blender.git/
build/
install/
lib/

Adding an extra <Builder Name> after build is redundant.

Differential Revision: https://developer.blender.org/D8045

Refactor: Move curvemapping .blend read/write to blenkernel

This is necessary so that it can be accessed from `blendWrite`
and `blendRead` callbacks from modifiers.

Merge branch 'master' into property-search-ui

Functions: Multi Function

This adds the `MultiFunction` type and some smallish utility types that it uses.
A `MultiFunction` encapsulates a function that is optimized for throughput by
always processing many elements at once.

This is an important part of the new particle system, because it allows us to
execute user generated node trees for many particles efficiently.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D8030

Merge branch 'master' into soc-2020-fluid-tools