Blender Git Loki

Merge branch 'master' into tmp-eevee-glsl-cleanup

Fix broken shading in workbench

EEVEE: Rename default_world_frag.glsl to lookdev_world_frag.glsl

Also include cleanups of the world rendering logic.

Fix undefined behavior with background alpha

Cleanup: EEVEE: Remove unused IRRADIANCE_CUBEMAP

Cleanup: EEVEE: Remove concentric samples.

EEVEE: Split bsdf_common_lib.glsl into smaller files

DRW: Put viewvecs calculation to view update

This avoids code duplication between draw engines.

Cleanup: Workbench: Remove own viewvecs

Cleanup: EEVEE: Remove own viewvecs