Blender Git Loki

GPencil: Fix missing Scale Thickness menu option

This was removed by error in merge.

Merge branch 'greasepencil-object' into greasepencil-refactor

Merge branch 'master' into greasepencil-object

GPencil: Refactor: Add back gradient fill mode

For more consistent behavior, the radial gradient is drawn inside the 0..1
uv space as if it was a texture.

GPencil: Refactor: Fix crash caused by material preview icons

Cleanup: GPencil: Fix Compiler warning about unused function

GPencil: Refactor: Fix onion overlay toggle

This make the assumption that the onion skins are always needed when.
This as a performance impact that will be fixed later.

GPencil: Refactor: Use stroke mask to cut dots shape

This removes the builtin fading of the dots. This should be reimplemented
as a material option for all stroke type instead.

Cleanup: GPencil: Rename struct member

GPencil: Refactor: Fix onion skining next frame drawing on top of active

GPencil: Refactor: Add dot stroke object rotation mode

GPencil: Refactor: Add Stroke dot UV random rotation support

Note: This fixes a bug that was cropping the dots texture.

GPencil: Refactor: Implement Onion skinning back

This new implementation changes a few things:
- The alpha is not dependent on the number of frames you choose to draw.
- The loop option affects more than one frame.
- The next frames are drawn on top of the active frame (TODO)

GPencil: Refactor: Remove image size from uv computation

Now UVs for line strokes is computed using only the pixel factor.
We can reintroduce the image size behavior easilly if needed but in a much
cleaner way.

GPencil: Refactor: Fix issue with negative pressure

This happens to be a thing in some test file. Maybe at some point we will
patch them but for now we just fix the symptomes.

GPencil: Refactor: Fix dot UV rotation at the end of strokes

Merge branch 'greasepencil-object' into greasepencil-refactor

Conflicts:
source/blender/blenloader/intern/versioning_280.c

Merge branch 'master' into greasepencil-object

Merge branch 'greasepencil-object' into greasepencil-refactor

Merge branch 'master' into greasepencil-object