Blender Git Loki

Merge branch 'master' into asset-engine

Merge branch 'master' into id-remap

Cycles: Solve crashes and wrong hair rendering with transparent shadows

cleaned up manta api and script

Merge branch 'master' into cycles_hair_bvh

Cycles: Initial implementation of QBVH traversal for unaligned nodes

Implements both QBVH packing and traversal on SSE2+ processors.

With a test render scene render time goes from 93sec (in master) down
to 55sec. Kind of impressive, let's hope it's not because some bug and
that we can keep such a nice speedup.

Also finished some non-SIMD binary BVH code. On a test scene got about
20% of speedup comparing to 2.77a.

Well, let's verify everything, finish some remaining TODOs and make
the branch ready for master.

Add a scale parameter to the importer and exporter.

Small cleanup.

Avoid using a filepath property for Alembic object paths properties.

Merge branch 'master' into alembic_basic_io

Cycles: Bring child visibility check

It is slower for simple cases, but could be faster in cases like complex
ray visibility settings.

Need some investigation about how to do visiblity check without time penalty.

Merge branch 'master' into cycles_hair_bvh

More WIP code for actual assets reload.

Nothing working yet, need to solve some issue with rootpath actually...

Merge branch 'asset-engine' into asset-experiments

Refactor load_pre helper to work from both DirEntries and uuids...

WIP (mostly empty for now) code to actually reload assets reported as needing it by update_check.

Merge branch 'asset-engine' into asset-experiments

Cleanup: get rid of blocking asset update_check code.

Some refactor in asset update_check code.

Fetching assets' uuids by engines is now in own func (will be used by update op itself too).

Also, each AssetRef has only *one* asset ID, the first one, avoids us a useless loop!

And early out of update_check op in case we have no asset in current Main, no need to start
job in this case.

Allow building without OpenSubdiv

This makes cycles subdivision code respect build options, disabling OSD code paths when desired. Since Catmull-Clark
subdivision requires OSD this subdivision type is unavailable with OSD disabled and linear subdivision will be used as a
fallback.