Blender Git Loki

Cycles: Fix wrong BVH used when disabling AVX2 in debug settings

Mainly useful for debugging. Previously, when AVX2 was disabled
in the debug panel but BVH layout was kept on BVH8 nothing was
rendered.

Needed to make it so supported BVH layout mask for devices is
queried in "dynamic", so it is possible to use DebugFlags there.

GP: New Autolock Inactive Layer

This option locks any layer no active to avoid any accidental change.

Add an option to do keyframe insertion in a cycle-aware fashion.

When enabled, inserting keyframes into F-Curves with simple cyclic
extrapolation (the same conditions as required for cycle-aware auto
handle smoothing to activate) will take the cycle into account:

- Keyframes that are being inserted outside of the cycle bounds
are remapped to be inside the cycle. Thus it is not necessary
to be within the main iteration of the cycle when tweaking.

This becomes especially useful in the final animation tweaking
phase when the channel keys may be staggered for overlap, so
the actual master period is different for different channels.

- Modifying one of the end points of a cycle also changes the
other end point when appropriate, to preserve smooth transition.

This feature applies to both manual keyframe insertion using
'I', and auto-keyframing.

Differential Revision: https://developer.blender.org/D3140

Merge remote-tracking branch 'remotes/origin/blender2.8' into soc-2018-npr

# Conflicts:
# release/scripts/addons
# release/scripts/addons_contrib
# source/blender/makesdna/DNA_scene_types.h
# source/tools

UI: Match region tabs with other navigation tabs

Multi-Object-Mode : Edit Curve Decimate

D3309 by @thornydre

Cleanup: indentation

Cleanup: rename PyAPI VertBatch to Batch

Only used for internal functions, follow 'GPU_batch.h' naming.

Fix leak in successive calls to Batch.program_set

PyAPI: add check for exceeding batch VBO limit

Cleanup: batch Python API

Add utility function to raise an error.

Fix missing error returns in batch API

Fix T57504: Scaling 3D cursor crashes

Cleanup: grease pencil RNA naming

Follow naming conventions for boolean's,

Also rename enable_settings -> use_settings_postprocess.

Cleanup: remove redundant 'gpencil_' prefix

Also rename 'gpencil_brush_type' -> 'tool' & correct typo.

Fix grease pencil RNA path

UI: Right-click menu entry to flip properties Tab Bar left/right

UI: Don't show scrollbar in Properties tab-bar

Addresses feedback from D3840.

Workbench: Attenuate dithering effect when using viewport render

Quick hack to get rid of most of the noise when doing a viewport render in
xray or wireframe mode.

UI: Rename "OpenGL Render" operator to "Viewport Render"

Since we now have an Opengl "render engine", it is misleading to have this
operator still called "OpenGL Render" when all it does is take a snapshot
of the viewport.