Blender Git Loki

Fix Scene datablocks being created with a real user while never having any real datablock user.

Now using new system dedicated to that kind of cases, id_ensure_real_user(), instead.
That way, usercount of Scenes is handled correctly at deletion time.

Reported by @sergey over IRC, thanks.

Buildbot: Attempt to use proper Clang for CUDA binaries

Fix T49464: Data Transfer modifier slows down redraw of window.

Never call function that might recompute a DM in an RNA itemf callback (or any UI-related func in general)!
There was an XXX comment asking if this was OK - well, no, it was not. :P

Could be ported back to some 2.78 flavour should we need it.

Fix missing properties editor update when changing 3D View camera

Actually two errors here:
* Properties editor wasn't refreshing on (NC_SCENE | ND_RENDER_OPTIONS) notifiers
* Was using notifier info bits wrongly, needs to send two separate notifiers

Decided to remove ND_RENDER_OPTIONS rather than adding properties editor scene context refresh for it, this is more than a render option change.

OpenGL render: Skip GP passes if viewport has GP visibility disabled

fix Mac build for Xcode < 8

We need a long-term fix, but this will get 2.78 out the door.

Blender 2.78: Update submodule hashes

Cycles: Fix T49411: Multiscatter GGX with zero roughness when Filter Glossy is enabled

Cycles: Fix overflow caused by wrong size calculation in Mesh::add_undisplaced

Fix T49310: incorrect Cycles standalone normals with negative scale.

Cycles: Prevent crash in special cases when object has less slots than mesh

This is something what was guaranteed in give_current_material(), just
copied some range checking logic from there.

Not sure what would be a proper fix here tho.

Collada: Trying to get rid of some warning messages on linux

Fix T49441: Grease Pencil - pie menu - brush name field crashes blender

Using context.active_gpencil_brush to access the active Grease Pencil brush
would result in a crash if trying to rename the brush, because the "ID" pointer
was not set.

To be backported to 2.78

Fix T49417: Cycles crash - can't use 5 Gigabyte Tile EXR texture file

Was an integer overflow issue when calculating offsets.

Fix T49430: append scene with gamelogic broken.

In fact, it was the whole remapping process that was broken in logic bricks area,
due to terrible design of links between those bricks...

Object copying was also broken in that case, fixed as well.

To be backported to 2.78.

Note that issue was actually probably there since ages, hidden behind dirty hacks
used in previous append code (though likely visible in some corner cases).

Listen kids: do not, never, ever, do what has been done for links between logic bricks. Never. Ever.
Even as pure runtime data it would have been bad, but as stored data...

Cycles: Don't sum up memory usage of all devices together for the stats

Fix crash in own recent rB776a8548f03a049.

New ID may be null, have to check this too!

Reported by @panzergame over IRC, thanks.

To be ported to 2.78 as well.

Fix: Collada Importer did not import the Blender Profile information correctly when multiple objects are bound to same armature. This caused Bone tails to be placed wrong.

Collada: Trying to get rif of some warning messages on linux

Fix T49427: Drivers of Shapekeys break when Append a group.

Optimization attempt with BKE_library_idtype_can_use_idtype() was not taking into account
the fact that drivers may link virtually against any datablock...

Has to be rethinked, but for after 2.78 release, this commit is safe to backport.