Blender Git Loki

Fix outliner grease pencil color button

Fix T45689: Pose Libraries cannot be used when using lib-linked actions as poselibs

This commit makes some tweaks that make it at least possible to use lib-linked
actions as Pose Libraries. Specifically:
* The apply poses button is no longer greyed out

* It is possible to select different poses from the list of poses

* All pose library operators which edit the poses stored in the poselib
now have improved poll callbacks which perform extra checks for lib-linked
actions (which cannot be edited, as all those changes will be lost)


Caveats:
* Due to the way the UI list template works, it doesn't seem to be possible to
make it not grey out the items in the list. (While the double-click to rename
thing shouldn't be allowed, items should at least look like they can be clicked on)

* The difference between clickable vs not-clickable isn't too great, making it hard
to tell that that while the Add/Remove/Sanitise toggles are not usable,
the Apply Poses is actually functional. But, this is a more of a UI-toolbox
level issue

Typo fix

BGE: Fix constraint free crash in RemoveConstraint.

Fix silly error getRigidBodyA() instead of getRigidBodyB()

Fix T45658: linked library object loses particle settings.

Simply make ParticleSettings datablock linkable, see absolutely no reason why those
were the only 'real data' ID type not linkable so far...

Anim Editors: All keyframe selection operators now perform undo pushes

This brings them into line with other editing tools (e.g. object/mesh selection),
and should help fix bugs like T45374 and T45846

Fix T45864: Wrong NLA Control Curves keyed when using the Graph Editor sliders

This commit simplifies the logic for finding the control curves for NLA strips,
thus eliminating a whole bunch of weird errors that were happening here. It should
also fix a number of other related issues here.

Fix T45865: Auto Blend is not recalculated when adjusting start/end/scale etc. of strip through RNA.

BVH-raycast: Use watertight intersections

By default watertight intersections are used,
For callbacks where its not needed,
BLI_bvhtree_ray_cast_ex can be called without the BVH_RAYCAST_WATERTIGHT flag.

Fixes T45286

Math Lib: watertight intersection function

From Cycles with some very minor differences.

Math Lib: Add float/int conversion functions

BVH-raycast: ensure input direction is unit-length

This was already the case for most users of ray-cast.
Doing this avoids 2x normalize calls per ray-cast in many places.

Fix uninitialized var use

Docs: correct some comments

Fix ATI part of T45708, crash when enabling opensubdiv.

In fact exit was getting called because we
had an error in shader compilation:

Uniform buffer objects are in fact required.

Since it looks like original intent was to
write the shader against older GLSL version,
I will be adding an extension here instead
of a version.

Thanks to Anshu Arya for letting me borrow his machine through
VPN to do the debugging :)

Fix T45491 not all GPUs support those extensions, use check for
opensubdiv to enable.

Minor cleanup (BLI_cleanup_dir already adds trailing slash, and correct a false-positive assert).

BGE: Fix T44557 GameLogic module memory leak.

This reverts commit 7a28ca4398465be1d6d57079e4b27c3a03418745.

Fix T43654: Radial distance for force fields was computed using the `vec_to_point`
vector, which already has the radial component removed.

Resolve MSVC/OpenMP compat issue