Blender Git Loki

Fix T51890: Turning off viewport display for array modifier is blocking dupliface in final render

DupliVert/Face were not using render DM at render time.

Fix T51821: Viewport not updating when switching worlds

added guards in pointcache read/write functions

if we want to use ptcache format for liquids, first make sure not to access smoke fields.

Fix error getting the tangent layer name

Missing from last commit

Fix world not updating when changing node links

When changing node links for the world material, a redraw of the
viewport was not being triggered.

DwM: optimize mesh batch conversion

- Replace GWN_vertbuf_attr_set with Gwn_VertBufRaw & GWN_vertbuf_raw_step
to avoid intermediate copy.
- Avoid extra conversion step with: float[3] -> short[3] -> Gwn_PackedNormal.
We can skip the short[3].

Gives approx 6% speedup here.

Gawain: add method of stepping over data directly

This avoids using GWN_vertbuf_attr_set which needs to calculate the
offset and perform a memcpy every call.

Exposing the data directly allows us to avoid a memcpy in some cases
and means we can write to the vertex buffer's memory directly.

removed the redundant code

Gawain: Use common prefix for packed normal

added weight to vertex paint converter

Merge branch 'master' into blender2.8

Conflicts:
source/blender/editors/space_outliner/outliner_select.c

Fix T51926: Selecting pose icon under expanded group in outliner causes crash.

Cannot switch uninstantiated armature to Pose mode...

DwM: no need to calculate face normal

Cleanup: quiet negative shift warning

DwM: add CD_AUTO_FROM_NAME for mesh conversion

Fix crash & performance regression w/ base lookup

Was doing O(n^2) list lookups with blender-render drawing & transform.
Also missing NULL checks would crash.

Use Object.base_flag (already used by new draw manager in places)
to avoid list lookup.

Note, transform still performs inefficient lookups,
but only for selected parents (like 2.7x), not all parents.

Eevee: Add Initial support for Principle BRDF.

Lots of things not working yet but it's comming.

Eevee: Remove ShadingData struct.

That was a bad idea after all.

Fix assert calculating tangents with no faces