Blender Git Loki

Fix T61061: Scopes in image editor are not updating

Scopes were moved to properties area, so need to adjust
the optimization part of tagging.

Ideally, tagging will always happen (and happen for free)
and then drawing code will update scopes when they are
actually displayed. But this is outside of the scope of
this fix since requires some design changes.

Fix T59339: Particle render without baking issues

The issue was caused by dependency graph resetting particles
when evaluating copy-on-write version of object. Solved by
only doing reset from dependency graph on user edits.

Other issue was caused by modifier itself trying to compare
topology and reset particles when number of vertices or faces
changed. This isn't reliable, since topology might change even
with same number of elements. But also, since copy-on-written
object initially always have those fields zero-ed the reset
was happening on every F12.

The latter issue is solved by moving reset from modifier stack
to places where we exit edit/paint modes which might be changing
topology.

There is still weird issue of particles generated at some
weird location after tapping tab twice, but this is not a new
issue in 2.8 branch and is to be looked separately.

Particles: Fixes for synchronization to original

Was missing synchronization of current frame to the original one,
which is one of the issues why point cache does not properly reset
on edits.

Also clear recalc flag on original particle system.

Ideally we need to get rid of recalc on a particle system, since
that is not really covered by tagging system of dependency graph.

Remove direct shape key drivers evaluaiton in object update

This is now hanbdled by the nodes in dependency graph.

Depsgraph: Comb code to a better state all over

Some summary of changes:

- Don't use DEG prefix for types and enumerator values:
the code is already inside DEG namespace.

- Put code where it locally belongs to: avoid having one
single header file with all sort of definitions in it.

- Take advantage of modern C++11 enabled by default.

Add C++ guards to some blenlib headers

Fix T61030: Drivers for shape keys not evaluated in correct order

Was happening when value of one shape key was driving property of
another shape key of same datablock.

Solved by making shape key blocks properties more granular.

Depsgraph: Specify whether RNA path to be resolved as entry or exit

Makes it more explicit whether RNA property is used as a source
dependency for something else, or whether some other dependency
is being hooked up to evaluate that property.

Cleanup: Spelling in comment

Depsgraph: Use more correct update source for an internal tags

Dependency graph will poke some IDs for recalc after finishing building.
Those shouldn't be considered as a user edit.

Depsgraph: Use more clear name for enumerator

Matches enumerator items and type name.

Fix T61032: Switching to sculpt tab causes undo to set object mode

Workspace switching changed modes w/o the 3D view,
causing sculpt undo's poll function to fail.

Applied the same logic for texture paint too.

Compositor: Added denoising node

This node is built on Intel's OpenImageDenoise library.
Other denoisers could be integrated, for example Lukas' work.

Fix T60996: Dyntopo flood fill fails due to missing ob->imat

Reviewers: brecht

Differential Revision: https://developer.blender.org/D4285

Fix: allow curve of driver to be evaluated individually

This is necessary when adding a new keyframe to a fcurve
that also has a driver.

Reviewers: brecht, campbellbarton

Differential Revision: https://developer.blender.org/D4278

Fix T59495, T59992, T59904, T59178, T60598: broken keyframed value editing.

This removes a bunch of animation/driver evaluations and recalc flags that
should be redundant in the new depsgraph, and were incorrectly affecting
the evaluated scene in a permanent way.

Still two cases that could be removed if the depsgraph is improved, in
BKE_object_handle_data_update and BKE_cachefile_update_frame.

For physics subframe interpolation there are also still calls to
BKE_object_where_is_calc that should ideally be removed as well, though
they are not known to cause keyframing bugs.

Differential Revision: https://developer.blender.org/D4274

Depsgraph: remove features incompatible with new system.

Some features are incompatible with multithreading and reliable evaluation
of dependencies. We are now removing them as part of a bigger cleanup to
fix bugs in keyframing and invalid animation evaluations.

* Dupliframes have been removed. This was a hack added before there were
more powerful features like the array modifier.
* Slow parent has been removed, never worked in 2.8. It was always
unreliable for use in production due to depending on whatever frame was
previously evaluated, which was not always the previous frame.
* Particle instanced objects used to have their transform evaluated at
the particle time. Now it always gets the current time transform.
* Boids can no longer do predictive avoidance of force field objects,
but still for other particles.

Differential Revision: https://developer.blender.org/D4274

Fix T60432: Blender crashes when dragging objects from other scene from outliner.

Sculpt: disable undo flag for sculpt mask lasso

While this is harmless, it did cause T55399 in the past.

Sculpt adds it's own undo steps, so don't request the operator type
to do it too.

This is consistent with other sculpt operators.

Fix T59293: Can't assign shortcut to undo history