Blender Git Loki

Modified UI for background color display and line layer on DPIX. Added console warning for software rendering.

Change cusp edge shift criteria

Added check if radial insertion flip will create a fold

Merge branch 'npr_tess' of https://github.com/DarkDefender/blender into soc-2018-npr

Fix faulty opti radi extend logic

Fix some gcc warnings

Added a very basic cache system

Merge remote-tracking branch 'remotes/origin/blender2.8' into soc-2018-npr

Added a multithreaded variant of split ff bb

Comment spammy debug prints

Fixed opti edge flip not nulling corrected face and add sanity opti checks

Adapted shader APIs to DRW_

Merge remote-tracking branch 'remotes/origin/blender2.8' into soc-2018-npr

Simplyified mutl_face_search (should now be more robust too)

More work on opti edge split

Fixed software triangle and render line culling bug. (crappy, but works correctly)

Uncrustify processed.

potentially fixed drawing command conflict error in F12

Fixed software rendering intersection cache update

Adapted multisample functions.