Blender Git Loki

Remove last_palette_name field

This isn't used for anything anymore. Removing it (and the padding) doesn't
seem to cause any new glitches, so this should be ok.

Code Cleanup - Remove all uses of gpd->last_palette_name

The reason for this has been superseeded by the Palette Slots system

Merge branch 'blender2.8' into greasepencil-object

Fix typo error

New Select Alternate operator

This operator allows to select alternative points in a selected stroke. This can be useful to disolve or modify.

Rename Panel Primitives to Shapes

The "Primitive" name can be confusing. It's better to use "Shapes" because these options are to add new strokes with a predefined shape, not a new GP object with this shape.

Update cyclic logic in old draw methods

The first adjacency point must be equal to last one if cyclic enabled.

Improve cyclic join

The join of the first point was not perfect.

Fix cyclic wrong opacity

When enable stroke cyclic, the opacity of the final segment of the stroke was darker.

The problem was related to the adjacency points used.

Rectangle and Circle primitives

Completed the work to create rectangles and circles.

WIP: Basic rectangle primitive

Still pending to show the feedback ghost image while create the primitive.

Cleanup: Remove unused code

Merge branch 'blender2.8' into greasepencil-object

Cleanup: Change debug code

No functional changes.

Fix casting to bool before checking the flag

Cleanup: style

Merge branch 'blender2.8' into greasepencil-object

Fix error selecting camera

The edit shgroup creation must check active object to verify if it's a OB_GPENCIL

Check object type

Fix zdepth order with 3D objects

When draw a new stroke, the stroke must be visible over all 3D objects and not in back of them.

A new mix pass has been created to make a mix with default framebuffer using a gl_FragDepth = 0.0 to force to be in front .