Blender Git Loki

Fix bevel modifier spread value bug.

Was using same field as value, by mistake.

Cleanup: add trailing commas

Prevents clang-format merging into a single line.

Merge branch 'blender2.7'

Fix T60627: Cycles render hanging on Windows with threadripper CPU.

Fix T60585: Cycles not using all cores on threadripper, after recent changes.

Fix T60585: Cycles not using all cores on threadripper, after recent changes.

Add miter pattern options.

Will document the new options in release notes, then in manual.
Still a bit of work to do on the bulging shape that appears
on cube corners if using arc inner miters, but will do that later.
Also need to do something smarter in clamp overlap.

Fix T60615: Cycles baking not working with some modifiers.

Refactors Cycles mesh export a bit to avoid unnecessary copies and to be in
sync with the Blender baker.

GP: Guides: Fix bug with Mkey and Circular guides

Reported by @pepeland.

Adding missing events on the first point was breaking the guide behaviour.
Also, updated Ckey so it always defaults to Circular mode when guides are off.

View 3D Grid: Improve precision and reduce code complexity

Instead of doing manual ray-plane intersection we use normalized positions
of the grid mesh and apply scaling after interpolation so that we keep
good precision even at really far distances.

Precision is now two order of magnitude better and does not produce the
same kind of artifact at lower clip start values.

This commit also cleanup the implementation.

Fixes T58918 Grid not appearing correctly at low clip start in 2.8

Preferences: assortment of minor layout tweaks.

Cycles: Fixed uninitialized memory

Cryptomatte on CPU with accurate mode was hitting uninitialized variables.
This is now explicitly initializing them to NULL.

Fix/workaround: Undo erase all dyntopo changes

Memfile undo isn't compatible with sculpt or edit-mode.

This didn't work in 2.7x, so best disable memfile undo for now in
situations where it's going to loose data or crash.

Fix loading a file saved w/ dyntopo

Ensure ED_editors_init doesn't create any undo steps
before the initial memfile undo is written.

Fix undo push entering sculpt mode

Cleanup: remove unnecessary CUDA architecture sm_72, it's for Tegra chips.

Subdiv CCG: Cleanup, comments

Multires: Correct averaging

Before that only normal component was averaged, which is not
really correct.

Unfortunately, the new code is somewhat slower due to more
involved math to deal properly with non-quad faces, but the
plan is to move averaging from runtime to edit time, This
means, that mdisps will always be continuous around the edges
and no averaging on every frame change of animated character
will be needed.

Math: Make it possible to use vector for both input and output

Avoids nasty code all over where such math is required, and
compilers can easily deal with such situation.

Don't prefer questionable micro-optimization which comes with
a cost of nasty actual logic code.

Multires: Ensure continuity when reshaping from object