Blender Git Loki

Eevee: Volumetrics: Fix "Tile Size" tooltip

Eevee: Volumetrics: Support Smoke simulation textures.

It should behave like cycles.

Even if not efficient at all, we still do the same create - draw - free process that was done in the old viewport to save vram (maybe not really the case now) and not care about simulation's GPU texture state sync.

Eevee: Volumetrics: Add Volume object support.

This is quite basic as it only support boundbing boxes.
But the material can refine the volume shape in anyway the user like.

To overcome this limitation, a voxelisation should be done on the mesh (generating a SDF maybe?) and tested against every volumetric cell.

GPUMaterial: Add a domain property.

This let us know efficiently if a material has a dedicated nodetree for each of it's output node input.

Only works for Eevee at this moment.

Eevee: Volumetrics: Request aditional frames when no TAA is enabled.

Eevee: Volumetrics: Add volumetric support to alpha blended meshes.

Eevee: Overhaul the volumetric system.

The system now uses several 3D textures in order to decouple every steps of the volumetric rendering.

See https://www.ea.com/frostbite/news/physically-based-unified-volumetric-rendering-in-frostbite for more details.

On the technical side, instead of using a compute shader to populate the 3D textures we use layered rendering with a geometry shader to render 1 fullscreen triangle per 3D texture slice.

DRW: Add 3D texture support.

BLI_rand : add BLI_halton_3D

Showing Clay collection settings when clay is the workspace not the scene engine

Docs: clarify return value for BVH API

Hide transform widget when tool widget is used

Fix camera lens/ortho manipulator

Update issues remain, require listening to notifiers.

Merge branch 'master' into blender2.8

Fix T53131: Incorrect vert-edge angle calculation

Vertex w/ a single edge wasn't detected

Merge branch 'master' into blender2.8

Remove SCREEN_OT_header_flip, use SCREEN_OT_region_flip instead

Basically reverts rB65c4149f203610 and fixes the issue in a better way.

Keymaps using the removed operator will be affected. Switching header
from top to bottom now has the shortcut F5, just like switching other
regions.

Fix T52984. Trackpad rotation to natural direction

Fix small Python/typo on "Outliner Collection Operation"

Skip loading tool keymaps in background mode