Blender Git Loki

Fix T79523 Paint Cursor: Wide line not supported on OSX

This replace the use of GPU_line_width by the specialized
GPU_SHADER_3D_POLYLINE_UNIFORM_COLOR shader.

Fix T79315 Normals Overlays broken with hidden geometry

Was caused by non-initialized variables before a return inside
the vertex shader.

Fix: Property search crashes searching enums with separators

Cleanup: silence [-Wmissing-braces] warning.

Introduced in {rBd6525e8d133b787655bdb2c2fcef218591a457c3}

Compiler: Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
```
source/blender/draw/engines/image/image_shader.c:46:13: warning:
suggest braces around initialization of subobject [-Wmissing-braces]
} e_data = {0}; /* Engine data */
^
{}
1 warning generated.
```

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D8873

Curves: Add custom profile bevel support

This adds support for the same custom bevel profile widget used in
the bevel tool and modifier to the geometry generation for curves.

This is expecially useful for text and 2D curves with extrusion, as
it works much better than a weld & bevel modifier combination.
It can also be useful for adding quick detail to pipe-like objects.

The curve holds the CurveProfile struct and a new "Bevel Mode"
property decides which type of bevel to build, round, object, or
custom profile.

Although curves can already use another curve to make the bevel
geometry, this is a quicker way, and it also defines the profile of
just one corner of the bevel, so it isn't redundant. It's also nice
to have the same custom profile functionality wherever there is bevel.

Differential Revision: https://developer.blender.org/D8402

Fix tests after adding collection color tagging

Fix a segfault caused by assuming all scenes have a master collection
when applying versioning to old files.

Fix T80684: Node shader wrapper: Tweak handling of alpha textures.

There is no ideal solution here, but we can assume by default that we should
use the Alpha output from a texture used for transparency data.

This will break people using a dedicated B&W texture for this alpha
pass, but we cannot really handle all cases properly in this wrapper, we
only try to support the most common ones to some extent.

Fix versioning code after FCurves versioning not executed

There must not be any return directly in our versioning patches. It
would return from the entire versioning function.
Mistake in da95d1d851b4.

As a result, when opening old files with animation data, the versioning
for the new collection color tagging wouldn't run, and all collections
would get the first color assigned.

Action Constraint: Add manual time factor input control

Adds an optional slider to the action constraint so that it can be
driven without a constraint target.

This is very helpful for more complex rigging and mechanical rigs, as it
means the action constraint can be controlled with a driver/custom
property directly, currently if we want to use a driver to control it we
must add a "dummy" bone/object inbetween to act as a control.

Reviewed By: Sebastian Parborg, Sybren A. St�vel, Demeter Dzadik, Julian Eisel

Differential Revision: https://developer.blender.org/D8022

GPUDebug: Avoid using STREQ on StringRef

This might be dangerous because StringRef is not guaranteed to be
null-terminated and STREQ assumes null termination.

Fix T78653 Workbench: Broken Depth of Field in Viewport (Mac OSX)

The output layout was wrong and it's a mistery why it works on most
implementations since it's clearly a wrong usage.

Thanks @sebbas for helping narrowing down the issue.

Fix (unreported) buffer overflow in BLI_system_cpu_brand_string helper.

Since this buffer is used as an array of 12 32bits integers, and C++
string expect a NULL-terminated C-string, we need an extra char to
ensure last one is always NULL.

See D8906. Thanks to @brecht for noting this one too.

NLA: Always Show All Strips

Currently, it's difficult to use the NLA system for users who are only
interested in using it as animation layers.

Entering tweak mode hides strips which are not evaluated. If the user
wanted to edit a different strip, they must exit tweak mode, look for
the strip, select it then re-enter tweak mode.

Solution:
All strips are always shown. The user can now see the next strip they
want to start editing.

Reviewed By: Sybren, Sebastian Parborg

Differential Revision: https://developer.blender.org/D7600

Fix (unreported) buffer overflow in Cycles' system_cpu_brand_string helper.

Since this buffer is used as an array of 12 32bits integers, and C++
`string` expect a NULL-terminated C-string, we need an extra char to
ensure last one is always NULL.

See D8906. Found while investigating T80657.

Fix: add versioning to fix incorrectly written customdata

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D8903

Cleanup: use uint8_t for various flags in curves

Previously, it was kind of a mess. In different places it was using `char`, `short` and `int`.

The changed properties are flags that are operated upon using bit operations. Therefore, the integer type should be unsigned. Since we only use 2 bits of these flags, `uint8_t` is large enough.

Especially note the change I had to make in `RNA_define.h` to make this work.

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D8844

Fix: Showing Meta Data Crash

When Showing Meta data for an image where the buffer does not exist
(missing file) it crashed. This patch removes the check on the image and
only checks the availability of the buffer.

Install_deps: update to add pugixml and potrace new deps.

Also fixed OpenVDB maximum version, it appears that even 7.1 is not
compatible with 7.0?

Re T80818 and D8628.

Fix T80800: Active UVMap Drawing

Regression introduced by D8234. In stead of using the active uv map, the
render uv map was drawn. This change will use the active uv map.

Fix: create shallow copy of CustomData before writing

CustomData_blend_write_prepare might modify the `CustomData`
instance, making it invalid afterwards. It is not necessary to do this
in other cases explicitly, because when writing shallow copies of
ID data blocks are made.