Blender Git Loki

Eevee: Add debug visual for Cascaded Shadow Maps

DRWDebug: Add new debug functions for spheres and matrices.

Eevee: Fix Cascaded Shadow Maps glitches

There was an issue that caused the cascaded shadow map to appear glitchy
when the lamp was not at the origin.

Workbench: Fix use of uninitialized memory.

StudioLight: Fix codestyle

Smoke: Port display to Workbench + object mode

This does not fix the smokesim. It only port the drawing method.

The Object mode engine is in charge of rendering the velocity debugging.

Things left to do:
- Flame rendering.
- Color Ramp coloring of volume data.
- View facing slicing (for now it's only doing sampling starting from the
volume bounds which gives a squarish look)
- Add option to enable dithering (currently on by default.

Matcap: Fix missing pixel on preview icons

Invert thumbnail switch to make UI more consistent

Also changed icon.

Merge branch 'master' into blender2.8

Ghost: Fix memory leak happening with keyboard mapping access

So far only noticed system de-initialization doesn't perform full
object free. So rather harmless but yet stupid.

Visual Studio compile fixes

Add delete button to Color Preview list

This makes the control more consistent and avoid flickering when change list mode.

File RW OK

UI: Replace color by material previews in list

To make more consistent the UI, the list of colors must shows the preview, not the old color boxes.

Besides, the new materials are more complex that a simple color box and the image was not representative.

Merge branch 'master' into blender2.8

Cleanup: Remove obscure flag which was only used for read in subsurf code

Some sort of rudiment from many years ago, is never set by 2.5x code.

Merge branch 'master' of git.blender.org:blender into cycles_embree

# Conflicts:
# intern/cycles/blender/addon/properties.py

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'master' into blender2.8

Cleanup: Use const qualifier for UV vertex map