Blender Git Loki

Depsgraph: Cleanup, simplify evaluation flush function

Also avoid once queue push for cases when current operation has multiple
outgoing relations.

Silence warning from object_relations.c

Depsgraph: Remove legacy recalc flag from DNA

Depsgraph: Remove clear of legacy unused flag

Depsgraph: Move away from setting old deprecated object recalc flags

Those shouldn't be used anywhere for real now.

Depsgraph: Don't use legacy flags in versioning code

Wondering whether files from 2.37 are still working fine.
Don't have that version of Blender running here, so can't test :(

Depsgraph: Use per-ID flags to see whether update is needed

This is actually functions which needs bigger reconsideration, but for now let's
try to keep them working as much as possible.

Depsgraph: Use new per-ID tags to see whether object in a group needs an update

This wouldn't be less precise than object level flag in theory, and we need to
move away from such a duplicating flags.

Transform: Avoid attempt to bypass dependency graph update

It's not possible to bypass new depsgraph, but also flush to other CoW copies
might be needed here.

Transform: Use new DEG query API to see what's being affected by a changing object

This avoids us from directly calling object update, and doing other type of
update flushing.

Prepares us to get rid of Object->recalc flags.

Depsgraph: Add query API to traverse all dependent IDs of the given ID

Depsgraph: Move iterator to own implementation file

Depsgraph: Cleanup, use enum value rather than a define

Depsgraph: Cleanup, naming

It makes more sense to stick to DEG_iterator_object order in name, since we can
have functions to iterate over different entities and we want all of them to
have common prefix.

_gawain python module: Add methods "program_use_begin" and "program_use_end"

Required to updade uniforms

RNA: Fix unreported: Some callbacks called when updating properties were incorrect

Removing OMP: legacy ccgsubsurf.

Performances gain is rather low this time, about 5% on average (in whole
affected functions).

Depsgraph: Add assert to make sure the view layer is part of the scene

Which is not in some cases since workspace is still partly implemented.

Transform: Fix recent merge conflict resolution fiasco

Why is it called legacy when this is a legit flags which are still to be checked
at a runtime???

Merge branch 'master' into blender2.8