Blender Git Loki

Sculpt: add missing files

Fix problem in last commit

Sculpt: More brush channel stuff

* The input device curves for brush channels
now use a copy on write mechanism.
+ It's based on a global cache of curves.
The alternative is to reference count
BrushChannels, which I also implemented
then abandoned.
+ Profiling showed that copying CurveMapping
instances was actually a problem.

* Lots of small fixes to the old<-> new brush setting
conversion code;

* Brush commands can now, sortof, have individual
spacing. The default brush spacing still acts
as a minimum though.

* Added a BLI_ghash_lookup_p_ex method that
returns the key ptr inside the ghash (it
returns the actual key, not a pointer to
Entry.key).
* Added a general 1d CurveMapping preset operator
that uses an RNA path to get the curve.

Add support for sculpt data.

Deduplicate evaluator implementations.

Cleanup, typo.

Precise comment for subsurf_data_eval.

Add check on the GPU backend, only OpenGL is supported for now.

Comment function as not thread safe.

Use type enum for evaluator type.

Reintroduce OpenSubdiv_BufferInterface to keep Blender's GPU code
separate from the generic OpenSubDiv code.

Merge branch 'master' into subdivision_work

Made changes as per revision suggestions

Merge branch 'master' into soc-2021-curve-fillet

Sculpt: Brush channels names are now lower-case instead
of upper case.

Sculpt: brush engine stuff

BrushChannels are now stored in linked lists
instead of simple arrays. This helps to
avoid memory corruption.

I had originally wanted to be able to pass
BrushChannels by value, but that doesn't really
work since they heap allocd data (the input
mapping curves).

Merge branch 'temp-asset-browser-catalogs' into temp-asset-browser-catalogs-ui

Merge branch 'master' into temp-asset-browser-catalogs

Merge branch 'master' into soc-2020-io-performance

commit prior to small refactor