Blender Git Loki

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-object

Merge remote-tracking branch 'origin/master' into soc-2019-cycles-procedural

Add Object Color to the Object Info node.

Cloth: support individual vertex sizing

This is important to proceed forward with dynamic remeshing.

Merge branch 'master' into soc-2019-outliner

GPencil: Move initial curve control points apart

Based on feedback from @matiasmendio

Cloth: change sizing to be a mapping between BMVert and ClothSizing

This is done to allow dynamic remeshing to work properly. It needs individual vertex sizing.

don't always use cache for now since it makes testing more annoying

experimental initial grid emitter

pass time step in from the modifier

experimental Close By Points event

GPencil: Sample function new counter (not working properly).

minor changes

Fix DirectX context not freed on session exit

Also rename XrSurfaceData to wmXrSurfaceData

Fix for previous commit, accidental call to xrDestroySwapchain

Fix possible OpenXR swapchain leak by using new unique_oxr_ptr

Merge remote-tracking branch 'origin/master' into soc-2019-npr

Add helper class to RAII manage OpenXR handles

Adds generic unique_oxr_ptr to wrap xrCreate and xrDestroy functions of
OpenXR handles into a unique_ptr like RAII interface.

While for most cases, OpenXR resources can be freed by their owning
object, sometimes errors may occor before final ownership is established.
E.g. swapchain ownership is only transfered to the session object once
its swapchain-images are created - which may fail. With this RAII
wrapper, the swapchain would be freed on error (as this triggers stack
unwinding through an exception), no matter who holds ownership to it
currently.
There are other solutions to this problem, e.g. by establishing final
ownership right after/upon creation, or by explicit freeing in case an
error is spotted; it's too easy to make mistakes here though. Plus, we
may want to experiment with using this API for all OpenXR resources, to
entirely avoid the possibility of them leaking.

Cloth: fix bug in sewing

v5v1 may not always exist (eg. cube with loose edges when triangulated can have different triangulation, may not be perfectly mirrored). This is now taken into account.