Blender Git Loki

Cycles: Add BVH8 and packeted triangle intersection

This is an initial implementation of BVH8 optimization structure
and packated triangle intersection. The aim is to get faster ray
to scene intersection checks.

Scene BVH4 BVH8
barbershop_interior 10:24.94 10:10.74
bmw27 02:41.25 02:38.83
classroom 08:16.49 07:56.15
fishy_cat 04:24.56 04:17.29
koro 06:03.06 06:01.45
pavillon_barcelona 09:21.26 09:02.98
victor 23:39.65 22:53.71

Original BVH8 patch from Anton Gavrikov.
batched triangles intersection from Victoria Zhislina.
Extra work and tests and fixes from Maxym Dmytrychenko.

Fix (unreported) crash when changing active shapekey in Edit mode.

Looks like someone changed the signature of some RNA update callback,
and for some reason that 'change skey' update function was not updated
(or later got merged from master)...

We'll need RNA to check for its func signatures, some day...

Multi-edit-support for Select Linked Mesh

added first version of decoupled cache - breaks compatibility, blender not fully working right now

Move to using arrays of objects/bases

This avoids stepping over the same obdata multiple times for linked
duplicates.

Also support select-linked for UV editmode.

Fix problem when change mode in brush color default

New default color for Brush

If the brush defines a default Palette and Color, when draw the color used is this and not the current context default color.

Still there is problem when change drawing mode from Line to Dots.

Fix T54302 - Wrong added scene when adding a scene strip to the Sequencer

When adding scene strips to the sequencer, the wrong scenes were
getting getting added if some were skipped. For example:
Given 4 scenes (A, B, C, D) if you're trying to add the last 3 scenes
(B, C, D) as strips to the first scene (A), it would ended up adding
"A, B, C" instead of "B, C, D" as expected.

Fix provided by Andrew (signal9).

Use Action datablock's own icon (instead of Animation Data's one) for File Browser's lib icons

Merge branch 'blender2.8' into greasepencil-object

Moar cleanup.

Add array utilities for getting objects in mode

Correct assert adding new object

Fix assert entering edit mode w/ multiple objects

Cleanup some leftover after recent refactor.

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

Merge branch 'master' into blender2.8

Cleanup: long lines, use doxy sections

Fix index offset (uv unwrap works now)

Eevee: Render: Add Info messages.