Blender Git Loki

Muli-Edit: UV select(all) / circle / border / lasso

Lasso Select support for multi-object edit

Merge branch '28' into temp-object-multi-mode

Quiet warning

Merge branch 'master' into blender2.8

Cleanup: long lines

Merge branch '28' into temp-object-multi-mode

Merge branch 'master' into blender2.8

Cycles: add roughness baking support, using squared roughness convention.

Cycles: switch to squared roughness convention for all nodes.

This was already done for the Principled BSDF to be compatible with typical
baked roughness maps in PBR workflows.

Code refactor: Missing in previous commit

Code refactor: Rename fields to prepare for ID datablock

Rename some fields to prepare the code to move the brushes (bGPDbrush) to reuse ID datablock ID_BR (Brush).

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'master' into blender2.8

Code cleanup: fix compiler warning.

Fix T54279: viewport update bug with volume meshes.

Meshes without vertex normals were not handled correctly.

Code refactor: reduce number of loops over meshes.

Fix T54278: volume artifacts with small density and color after recent changes.

Fix T54269: saved EXR file files unreadable some editors in Blender.

Don't write the multichannel metadata when there is only a single layer,
and don't unnecessarily consider single layer images with Blender metadata
as multi layer.

Code cleanup: use spaces for aligned indentation.