Blender Git Loki

BMesh: check at least 2 edges in each loops vert

Also no need to check twice

Cleanup

Minor cleanup.

MOD_UVWarp: switch from OMP to BLI_task.

Usual 10%-15% speedup. Note that here OMP was rather erratic, with typical
timing about 10% slower than BLI_task, but having some 'burnouts' (~10% of times)
were it would be over ten times slower than usual... BLI_task looks much more stable.

Cleanup: SubsurfaceScatteringNode is a subclass of BsdfNode, no need to set the value again.

Fix (unreported) do not show 'appearances' options tool panel in ParticleEdit mode (not supported).

Cleanup: use enum for bmesh_elem_check

BMesh: remove doubles fix/optimization

Changes to remove doubles face creation,
Recent change to remove doubles broke when the new faces already existed (rare occurrence),
however theres no point to return an existing double face.

Now check if the face exists before creating it.

Other changes:

- avoid 2x hash lookups on all mapped verts.
- fill in the vert array instead of calculating from edges.
- remove inefficient search of entire edge-array before adding to it.
(flag verts to ensure they're not used multiple times).
- move logic for transfusing edge-flags to edge creation.

BMesh: BM_verts_from_edges utility function

Add STACK_CLEAR macro

Cycles: Fix Tile access in the TileManager for viewport rendering

- When rendering in the Viewport, next_tile is sometimes called after a reset has been performed, but before
new tiles were generated. In that case, the tile list would be invalid, causing Blender to crash randomly.
- When generating new tiles, the TileManager would not clear the tile lists before re-generating them, leading
to some tiles being skipped during viewport rendering.
- When popping the next tile from a tile list, a reference to the just-deleted object would be returned, now the
object is copied before deleting it.

Cycles: Implement constant fold for the ConvertNode.

This way socket type conversions (such as color to float, or float to vector) do not stop the folding process.
Example: http://www.pasteall.org/pic/show.php?id=96803 (selected nodes are folded).

Fix a few warnings with Apple LLVM 7.0.2.

Fix T47051: cycles viewport textured shadeless draw bug.

Update Link to the Blender Store.

Fix weld edges into faces splicing verts that shared a face

This could happen with degenerate faces.

Fix weld edges into faces - eternal loop

Would happen with complex edge-nets mixed with faces.

Remove BLI_buffer calloc option

This wasn't working reliably (after clear for example), and wasn't used anywhere.

Fix BLI_buffer_reinit not clearing static flag

Fix error in BLI_buffer_reinit

alloc_size was set incorrectly causing arrays not to be resized correctly.