Merge branch 'master' into greasepencil-object

GPencil: Fix time modifier

After the change of the loop, the time modifier was not evaluated.

GPencil: Fix crash when Sculpt with Grab brush in an empty frame

As the copy of the frame is done after the eval data is used, it could be possible the first time the stroke is not available.

GPencil: Change evaluation order for modifiers

Now the loop of modifiers is done before the loop of layers. This will be required to make changes in array modifier and it's more logic.

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-object

GPencil: Fix distance problems in Vertex Color modifier

Also, the fill is modulate with the distance

GPencil: Cleanup - Remove unused code

GPencil: Use Material color if not Vertex color for modifier

GPencil: Some small tweaks to Filters in modifier panels

GPencil: Change props to PROP_FACTOR

GPencil: Avoid query depsgraph for every point while drawing

Now, the evaluated object is calculated before.

GPencil: Fix missing texture in first stroke

The material id was not updated in eval data.

GPencil: Cleanup duplicated code

GPencil: Fix problem with first stroke color

When use a new material, the color only changed after first stroke. This was related to the tag of the depsgraph that is done only at the end of drawing due perfromance and fast response.

Now, the value is copied to the runtime data.

GPencil: Cleanup Vertex Color maths

Merge branch 'master' into greasepencil-object

GPencil: Fix Vertex Color modifier

Solved belnding problems and code cleanup

GPencil: Reorganize Masking parameters in modifiers

- Removed duplicated code
- Make more compact the list

GPencil: Fix array modifier rotation bug