Blender Git Loki

GP: Reorganize Mask icons

GP: New option to enable masking

Now the blend masking can be enabled or disabled

Merge branch 'blender2.8' into greasepencil-object

GP: Apply alpha to mix color

Merge branch 'blender2.8' into greasepencil-object

GP: Exchange opacity and blend parameters in Panel

GP: Disable opacity of Blend layers

The opacity parameter is not logic for blend layers because the opacity is determined by underlying layers.

Avoid error adding layer

GP: Cleanup unused variable

WIP: Support Blend layer

This new option for Layers allow to define the blend mode between layers to create effects and help with the painting of the frames.

Note: If use substract to open holes, you can get the transparent problem we already know and that it's pending to solve using OIT.

Merge branch 'blender2.8' into greasepencil-object

Add GP modifer to extract strokes

Add option to select contour verts

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'blender2.8' into greasepencil-object

Fix problem with onion in multiwindow mode

Fix problem with storage index

The storage index was not updated and the object scale and other data were wrong

Use Time Offset modifier to calc VBOs size

The active frame can be different if there is a time offset modifier.