Blender Git Loki

Merge branch 'master' into temp_custom_loop_normals

tmp

Merge branch 'master' into temp_custom_loop_normals

Split add/clear clnors data operator (vcol does that too, so...).

Get rid of 'custom lnors' modifier option, do not use at all target geometry.

Merge branch 'master' into temp_custom_loop_normals

Minor cleanup.

Merge branch 'master' into temp_custom_loop_normals

Rework threaded code...

Now small meshes do not use threading at all (allows to be 6 times quicker on a 200 verts cube e.g.),
and threading code use ThreadQueue as it should have been doing since the beginning.
We do not gain much here, though, two or three percents at most on a 1M verts monkey
(using a mempool might help here, though, have to check this yet).

Bump OpenEXR to 2.2 for windows MSVC 2013

Review updates: Replace 'bbox center' option by an offset one.

Review update: some small performance enhancements, and cleanup.

Cycles: Further tweaks to T43511 to solve compilation error on 32bit platforms

Cycles: Solve dependency between camera and object synchronization

IN theory object might depend on camera location (spatial adaptive subdivisions
for example) which became not possible to achieve after camera in volume support.

Should be no functional changes for artists.

Warp modifier: avoid sqrt checking radius

First round of changes from campbell's review.

Mostly renaming, not everything addressed yet.

Fix T43524: Warp modifier curve clamped to 0-1

Cycles: Ignore -Wmaybe-uninitialized from the kernel in release builds

This warning provided too much false-positive issues in release version of the
kernel, making it really easy to miss actual warnings.

Warp modifier: remove redundant NULL check

Cycles: OSL kernel now also ignores maybe-uninitialized

This is a bit of a mess because of the header dependency hell, but
since the tweak is small enough it's gonna be fine.