Blender Git Loki

GTest: polyfill2d

Collection of test cases from libGDX and our own tracker

Tests:

- combine triangle area matches polygon area.
- tris have same winding.
- tris don't have duplicates.
- correct number of internal & boundary edges.
- degenerate polys still give topologically correct output.

also checks all possible start-vert offsets, forwards and backwards.

optional OBJ output, for debugging.

Fix T41986: polyfill fails with axis aligned verts

BMesh: remove point-in-face test for bisect

instead track inside/outside state while stepping over intersections.

Comments: update for changed args

Fix T41981: Crash by Copy mask splines without splines

Cycles: Correct object flags bitfield, was missing negative scale there

It's quite a few of circumstances to be met to hit the case when render
wouldn't be correct.

Better to be ported to the final release.

Correct recent error in BLI_array_append_ret

Comments: clarify math lib

BMesh: replace BLI_array_grow_one -> BLI_array_append_ret

BMesh: use stack for subdiv face data (no realloc)

BLI_array: add BLI_array_append_ret

returns the newly appended item.
also make make it so reserve doesn't have to grow then shrink the array size.

BLI_Stack add BLI_stack_peek, BLI_stack_discard

also remove own incorrect assert

Freestyle: minor docstring revision of Operators.reset().

Freestyle: Expose the Operators.reset() function to Python.

The Operators.reset function is exposed to the Freestyle Python API, which makes
it possible to combine multiple style modules into one file.

Differential revision: https://developer.blender.org/D802

Author: flokkievids (Folkert de Vries)

Reviewed by: kjym3 (Tamito Kajiyama)

Cycles: Avoid temp variable in camera-in-volume check

Was a left-over from some experiments, no need it with the current
implementation, and likely wouldn't need in the future.

Cycles: Cleanup of the SSS volume stack update code

Was a leftover after the changed scene_intersect() which used to
be ifdefed depending on the __HAIR__ in the original patch.

Fix T41974: blender ships vulnerable minilzo version

Update lzo library due to security issue

Update lzo to latest version. This fixes a security issue (reported in T41974)

This also fixes some (false-positive) valgrind warnings.

Reviewers: sergey

Differential Revision: https://developer.blender.org/D803

Cleanup: typo

Tracking: Make sure INC_SYS is always fine

Add Face Region to 'Select-Similar' menu