Blender Git Loki

Cleanup: removed trailing spaces from `install_deps.sh`

No functional changes.

x264: update URL and hash in versions.cmake

The old URL did have a Git commit hash in it, but apparently the server
was ignoring it and only used the `master` that was also mentioned in the
URL. As a result, every new download would get the latest version from
the `master` branch, invalidating the SHA256 checksum.

I replaced `master` with the actual commit hash. This should make the
situation stable.

No functional changes.

Alembic: remove HDF5 support from CMake files

This is a follup to 0c384362272.

No functional changes to Blender, just the build scripts.

Fix T77871: GPencil masked points fails with previous point

If selected a point for masking, the previous point that is part of the same segment was included.

This bug was in Sculpt and Vertex paint modes because the code was very similar.

Alembic: remove support for HDF5 archive format

Alembic is not a single file format, it can be stored in two different
ways: Ogawa and HDF5. Ogawa replaced HDF5 and is smaller and much faster
(4-25x) to read ([source](http://exocortex.com/blog/alembic_is_about_to_get_really_fast)).

As long as Blender has had Alembic support, it has never supported the
HDF5 format in any release. There is a build option `WITH_ALEMBIC_HDF5`
that can be used to enable HDF5 support in your own build. This commit
removes this build option and the code that it manages.

In the years that I have been maintainer of Blender's Alembic code, I
only remember getting a request to support HDF5 once, and that was to
support very old software that has likely since then been updated to
support Ogawa. Ubuntu and Fedora also seem to bundle Blender without
HDF5 support.

This decision was discussed on
[DevTalk](https://devtalk.blender.org/t/alembic-hdf5-support-completely-remove)
where someone also mentioned that there is a tool available that can
convert HDF5 files to the Ogawa format.

Fix text after '|' being right aligned in the ID selector

Only use this to right align libraries when they are added to the name.

Caused by d62bbf4079323.

Fix T77869: GPencil material preview not visible before frame 2

The problem was related to the change introduced in commit 11ba9eec7017

As now the keyframe is only visible if the keyframe is greater or equal than current scene frame and the preview file had all keyframes in frame number 2, it was not used in frame 0 or 1.

Now, the keyframes have been moved to frame 0.

Various UI messages fixes...

Fix T77735: Numinput of radial control operator behaved incorrectly

This fixes the behavior of `ctrl+F` and `shift+F` to control the angle
and strength of a brush when the unit scale is not one.

Reviewers: pablodp606

Differential Revision: https://developer.blender.org/D7992

Fix curve handle color ID display

Regression in 49f59092e7c8c caused all handles to display using
the 'aligned' theme color.

Arrange flags to fix this, add assert to avoid this happening again.

Also rename flag so it's use is clearer.

API docs: mathutils leaked markup

Reviewed By: Blendify

Differential Revision: https://developer.blender.org/D8021

UI: Do not use term 'Subsurf'

So not to be confused with subsurf scatter

Differential Revision: https://developer.blender.org/D8005

deps/windows/embree: Prevent exports leaking out of blender binary

embree marks a few of its functions with a dll_export macro
forcibly exporting these symbols from whatever binary links
them. Given we link embree statically and we do not want these
exports in the blender binary, the macro needs to be a no-op.

Fix T76563: Transforming an auto-aligned point won't set it aligned

Correct previous commit that was checking values not yet initialized,
causing T77796.

Cleanup: remove unnecessary header

Introduced in D8007

install_deps: Update python default version to 3.7.7.

Re T77846.

Deps builder: Python 3.7.7

This updates python to the latest patch level available for 3.7
also updates some of the packages we rely on:

idna 2.9
urllib3 1.25.9
cerifi 2020.4.5.2
requests 2.23.0
numpy 1.17.5

UI: Use consistent order for particle display icons

The viewport, render display order matches modifiers, physics,
and the outliner.

Differential Revision: https://developer.blender.org/D7998

Sculpt: Fix creation of repeated constraints in the Cloth Brush

Previously, constraints were added multiple times from different
vertices. This adds a GSet to check that the same constraint is not
being added twice when iterating over the neighbors of two different
vertices.

Reviewed By: zeddb

Differential Revision: https://developer.blender.org/D8007

Fix T66786: Audio SDL: Video editor Sound muted without muting it

Porting fix for SDL 2 audio formats from audaspace upstream.