Blender Git Loki

Cleanup: Rearrange Select Engine into multiple files

cleanup: Fix typo in last commit

Accidentally took the C flags as a base.

CMake/Windows: Enable JMC on compilers that support it.

JMC [1] enables more productive debugging of C++ code in visual studio
this change enables it on debug builds for builds with visual studio 15.8
or higher.

[1] https://devblogs.microsoft.com/cppblog/announcing-jmc-stepping-in-visual-studio/

Merge branch 'soc-2019-openxr' into temp-vr-draw-thread

Merge branch 'master' into soc-2019-openxr

Cloth: fix bug in invert_m2_m2()

Keymap: Support F2 for rename in the outliner

Rather than use the F2 rename active object popup when in the
outliner, rename the active element. This allows renaming object
data, collection, and other non-object elements within the
outiner.

DRW manager: select engine: remove redundant calls

Bevel Custom Profile: 4-way pipe case vertex mesh working.

Cloth: more face sizing debugging statements

Cmake/windows: Fix vcpkg bypassing our libs folder.

Occasionally we get reports of people that build blender and end up
with either build errors or end up with builds that do not run on
other systems. The root cause is when you install vpckg and integrate
it into the build system it puts the search path for its includes and
libraries before anything else.

previously we told people to either uninstall vcpkg or remove the
conflicting packages, which was not great.

this change opts out of the use of vcpkg for blender only, so people
can keep using it for other work without issues.

Fix T67939: GPencil Noise modifier step is ignored in render

The value of the step was calculated using a variable that was removed when the render frame change.

Now, the step is calculated using the modulus of the current frame and recalculate noise only if the remainder that results from performing integer division is equal to 0.

To calculate current frame, the first used frame is calculated to adjust real frame range.

This approach is more stable in viewport and render.

Merge branch 'master' into soc-2019-outliner

Initial Commit: Use GPU to test the visibility of vertices.

Change neighbour array default size

Sculpt mesh API: replace gsets with static arrays

Fix snap package to work with 2.80 version number

Without this it rounds to 2.8.

Fix T65691: GPencil Drawing long strokes turn invisible

There was a fixed limit to the number of points available in a buffer stroke.

Now, the array is expanded as needed using a predefined number of points for each expansion, instead to add one by one. This is done to reduce the number of times the memory allocation is required.

As part of the fix, some variables have been renamed to reflect better their use.

Alembic export: fix exporting of loop normals

When the mesh is using custom normals, those should always be exported,
regardless of the `ME_SMOOTH` flag on the invidivual polys.

Also replaced the loop normal writing with the same logic as we use for
reading (less pointer arithmetic, more normal counting).

Alembic import: load face-varying normals

Loop normals are called 'Face-varying normals' in Alembic. Before this
commit, the existence of such normals was used to enable smooth shading.
This is incorrect, as the normals could encode flat faces just as well.

This commit adds the loading of these normals as custom loop normals. It
then also enables Auto-Smoothing on the mesh (which is a bit of a
misnomer and indicates to Blender that the custom normals should be
used).

Fixes the glitching described in T65959.

Differential Revision: https://developer.blender.org/D5191