Blender Git Loki

Restored manual gpencil_batch_cache_dirty() call when adding modifiers

There are too many problems leaving it out, even if in theory the depsgraph
calls should be taking care of it.

Temporary (?) fix so that Hero project files get version patched correctly

Porting more GP Modifiers

* Opacity modifier
* Color modifier
* Thickness modifier
* Tint modifier

Cleanup: Remove unused function

Fix: GP modifiers not updating when properties changed

Added back an explicit call to BKE_gpencil_batch_cache_dirty()
in the rna update callback for GPencil modifier properties.

However, instead of polluting the general rna_Modifier_update(),
this time we do this in a special wrapper/update callback for
dedicated GP modifier usage.

I'm unsure why the depsgraph isn't properly updating this case
- there's probably a missing relation between modifier properties
and GP ubereval (which calls the tagging), but where?!

GP Modifier: Set up stubs for geometry modifiers too

GP Modifiers: Fully ported Noise modifier over to new system

Fix: "deformStrokes(..., bGPDframe *)" callback should really have been "deformStroke(..., bGPDstroke *)" instead

Cleanup - Various cleanups for GP modifier files

* Remove redundant checks
* Use M_PI_2 instead of hardcoding a magic number
* Fix license text year info
* Properly handle new palette creation in Tint modifier

Cleanup: De-duplicate mode checking macros for GPencil

Cleanup - Move helper functions for GP modifiers into the modifiers module

Cleanup - Use existing vertex groups function instead of defining out own

Fix compiler warning about const vs non-const

Fix "Apply Modifier" operator to use the new callbacks

GP Modifiers - Change all applyModifier callbacks to bakeModifierGP callbacks

ModifierTypeInfo - Add 3 dedicated callbacks to support GP modifier evaluation and operations

* deformStrokes - Handles the "stroke" modifiers currently evaluated in
BKE_gpencil_stroke_modifiers() - e.g. Thickness, Noise

* generateStrokes - Handles the "geometry" modifiers currently evaluated
in BKE_gpencil_geometry_modifiers() - e.g. Array

* bakeModifierGP - Dedicated callback for hosting the code currently
wrongly-placed in applyModifier. This gets called
when pressing the "Apply" button on a GP modifier.

Compile fix: Missed a reference in previous commit

TODO: Calls to BKE_gpencil_layer_delframe() need to trigger a refresh

Cleanup - Remove direct BKE_gpencil_batch_cache_dirty() code in favor of depsgraph tagging

Cleanup: Eliminate BKE_gpencil_batch_cache_alldirty()

This accessed the global G.main directly, which we're trying to remove

Fix: Version patching code was creating extra GP datablocks and throwing them away

After modifying the BKE_object_add() function to create a new GP datablock
by default, this change in behaviour would cause problems for the version
patching code fixing the old scene->gpd.