Blender Git Loki

Fix T52434: Restore mesh center of mass calculation

The new method while improved for solid objects
doesn't work for non-manifold meshes, keep both.

Fix bpy library load: invalid function signature

PyAPI: avoid redundant PyLong_AsLong call

Assigning to an RNA array converted from Python to C twice.

fix for angle calculation due to usage of initially rotated rigidbodies in external mode

fix for initial rotation in convert to object and convert to keyframes

fix for rotated box shapes in external mode + print -1 for unbreakable threshold in phys viz

use areabased centroid calculation again for shards + small fix in loading routine

new volumebased method gave incorrect results with nonmanifolds

added an automerge distortion cache

Merge remote-tracking branch 'refs/remotes/origin/blender-v2.79-release' into fracture_modifier

fix attempt for "merge cache"

Fix T52401: "Export Keying Set" operator generated incorrect ID's for shapekeys

To be backported.

Blender 2.79: Point subodules to updated hash

PyAPI: Fix memory leak w/ empty, allocated enums

another fix attempt to get the masses right

fixes for centroid and volume calculation for non-manifolds, fix attempt for storage of merge info

Fix T46329: scene_update_{pre,post} doc needs clarification

The documentation for the bpy.app.handlers.scene_update_{pre,post}
handlers states that they're called "on updating the scenes data".
However, they're called even when the data hasn't changed. Of course
such handlers are useful, but the documentation should reflect the
current behaviour.

Reviewers: mont29, sergey

Subscribers: Blendify

Maniphest Tasks: T46329

Differential Revision: https://developer.blender.org/D1535

Fixed Alembic unit test

Commit b6d7cdd3cee9312156e20783248a3b12420b7a53 changed how the mesh data
is deformed, which wasn't taken into account yet in this unit test.

Instead of directly reading the mesh vertices (which aren't animated any
more), we convert the modified mesh to a new one, and inspect those
vertices instead.

Fix T52240: Alembic Not Transferring Materials Per Frame

When a mesh changes its number of vertices during the animation,
Blender rebuilds the DerivedMesh, after which the materials weren't
applied any more (causing the default to the first material slot).

Alembic: Renamed variable assigned_name ? assigned_mat

The variable is a pointer to a Material, not to a name/string.

Fix OSX duplicate path in Python's sys.path

The '..' in the path caused simple comparisons to fail.

D2780 by @akitula