Blender Git Loki

Fix memory leaks mesh w/ mesh remapping

Subsurf: Optimize edge drawing, now it uses VBOs.

Also the refactor exposed an error where we requested too much
memory from the video memory in general for all mesh types.

Now we are back to normal :)

Added NlaStrip.fcurves.find(data_path, array_index=0)

This is the same as D1427 / 89e5c756665c1e7e622ddbd5deece0dda4ce7724
except for NlaStrip.fcurves instead of Action.fcurves. It makes finding
a specific fcurve in Python much easier, as you don't need a Python-side
loop any more.

Reviewers: aligorith

Reviewed By: aligorith

Differential Revision: https://developer.blender.org/D1430

Freestyle: Fix for round/square stroke caps causing line thinning.

This is a regression introduced in rBce729677db3e and rBb408d8af31c9.

RoundCapShader and SquareCapsShader had to remove (almost) overlapping
stroke vertices to avoid sudden thinning of line thickness. For instance,
the test .blend file from https://developer.blender.org/T36425#231460
suffered from the reported line thinning (although T36425 was originally
caused by a different bug).

Fix T45381: Crash Blender 2.75 in Win7 x64 AMD card

Previous fix didn't work well enough because on Windows Python has different
environment than Blender ans setting variables in there made no effect from
Blender point of view.

Use looptri for sampling UV's in smoke.c

D1424 by @scorpion81

Fix regression of custom nodes not triggering material preview re-render

Issue was introduced in b0df196.It's not the nicest ever solution but it's
quite close to be as nice as we can do it with current custom nodes and
notifier system design.

Cycles: Resolve compilation error of avx2 kernel with certain compilers

It was redefined macro happening with Clang 3.6 here.

Cycles: Previous commit broke compilation on Windows

Apparently MSVC doesn't have setenv() function.

ImBuf: Fix OpenExr leaking memory when reading file with IB_test flag

Use looptri for smoke collisions & particle edit

Use looptri for RNA BVH functions

Cleanup; duplicate header

Cleanup: arg names

Use looptri for mesh remapping

Utility function to get poly -> looptri mapping

Use looptri for BVH raycast (simple cases)

Use looptri for volume snapping

Missed adding BVH callbacks in recent commit

Add missing break checking for tangents