Blender Git Loki

Fix viewport camera gets out of sync in certain cases

It was possible to have two viewports opened and start using Ctrl-0
to make different objects an active camera for the viewport. This
worked fine for viewports which had decoupled camera from the scene,
but if viewport was locked to scene camera it was possible to run into
situation when two different viewports are locked to scene camera but
had different v3d->camera pointers.

Fix T49609: Point density textures: vertex colors are not properly averaged in BI

Nice to have in 2.78a, though not a regression.

Fix T49608: runtime-only particle's boid->ground Object pointer was left dangling to invalid value in read code...

Fix a few compile errors with C++11 on macOS.

BLI_task: fix case were some pool could work in more threads than allowed.

We were checking for number of tasks from given pool already active, and
then atomically increasing it if allowed - this is not correct, number
could be increased by another thread between check and atomic op!

Atomic primitives are nice, but you must be very careful with *how* you
use them... Now we atomically increase counter, check result, and if we
end up over max value, abort and decrease counter again.

Spotted by Sergey, thanks!

Cycles: Fix OpenCL split kernel compilation after recent CUDA 8 performance fix

Datablock management: remove 'proxy_from' pointer from 'is ID used' checks.

Pretty much same reason as for the 'from' pointer of shapekeys - runtime
data creating loops and 'ghost' dependencies between datablocks.

We need to handle them in cases like remapping, but whall not take them
into account to check dependencies between datablocks... :/

Fix T49595: bpy - negative skin_vertices radius crashes Blender

This is unsigned value (negative radius does not have much sense anyway!).

Fix wrong separator line width after drawing vec icon

Was visible in Dynamic Context Menu add-on.

Fix T49523: very slow normal map tangent computation for rendering in 2.78.

Fix T49501: Animations imported via alembic render with wrong or no motion blur

[msvc] make.bat, no need to set the cuda path at all, cmake will figure it out on it's own.

[msvc] make.bat remove mixed cuda 7.5/8.0 build for release since all kernels can now be properly build with 8.0

Cleanup: Update links to online py API doc, and remove old commented stuff.

Fix T49553: Blender 2.78 crashes when File->Data Previews ->Refresh Datablock Previews

New recursive iteration over IDs in BKE_library_foreach_ID_link() was
broken by the infamous nodetree case. We cannot really recusively call
this function in that case, so better to deffer handling of
non-datablock NodeTrees as if real IDs here.

Also fixed initial ID not being stored as handled, in rare cases this
could also lead to infinite looping.

To be backported to 2.78a.

Cycles CUDA: make CUDA 8.0 the officially supported version for all platforms.

Fix Cycles CUDA performance on CUDA 8.0.

Mostly this is making inlining match CUDA 7.5 in a few performance critical
places. The end result is that performance is now better than before, possibly
due to less register spilling or other CUDA 8.0 compiler improvements.

On benchmarks scenes, there are 3% to 35% render time reductions. Stack memory
usage is reduced a little too.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D2269

Fix memory leak caused by unknown opeartor of keymap item

Fix T49548: Entering Cycles Rendered Viewport Unlinks Material from Objects.

We *always* want to increase mat user count when from Object (and not
Data), because in that case we are moving mat from object to temp
generated mesh, material can never be 'borrowed' in that case.

To be backported to 2.78a

Fix missing operator-type registration

Removed in a7dbc0704f217a, but only should've removed default keymap entry.