Blender Git Loki

Refactor the "normal" attribute reading and writing

Merge branch 'blender-v2.92-release'

Cleanup: remove unused render camera code

Fix T84745: more build errors with TBB 2021

* tbb::blocked_range moved to a different namespace and since the fix is
non-trivial, remove some unused code that used this.
* Task group priorities are no longer supported. It's unclear if they are
useful at all right now and even set correctly, for now all tasks are equal
priority with TBB 2021.

Fix vertex color baking using wrong color space

Now light baking should match the render.

Merge branch 'master' into temp-geometry-nodes-normal-attribute

Merge branch 'blender-v2.92-release'

Fix: Mouse presses in some areas do not set active modifier

There are a couple of operations that are meant to set the active
modifier that currently don't. The first is a mouse press on the drag
icon on the right of the header, and the second is mouse presses on
modifier sub-panels headers.

This was an oversight in the implementation, especially the second,
because the blank space on the right of a sub-panel header often looks
just like the blank space elsewhere on the modifier's panel that
*does* set the active modifier.

Note that this purposefully doesn't include collapsing and expanding
the modifier as operations that set the active, since regardless of
whether that makes sense, it wasn't in the agreed upon design, which
would ideally not need changing for 2.92.

Differential Revision: https://developer.blender.org/D10155

Fix crashes from recent refactor rB131a758b6f88.

Much better to add a relation entry for all IDs, even if they are not
connected to any other ID.

Fix memory leak when opening file browser

The name string of each file was duplicated but not freed. The new flag to
ensure the file-list frees the name wasn't set. Mistake in ca475479eb26.

Cycles: optimize device updates

This optimizes device updates (during user edits or frame changes in
the viewport) by avoiding unnecessary computations. To achieve this,
we use a combination of the sockets' update flags as well as some new
flags passed to the various managers when tagging for an update to tell
exactly what the tagging is for (e.g. shader was modified, object was
removed, etc.).

Besides avoiding recomputations, we also avoid resending to the devices
unmodified data arrays, thus reducing bandwidth usage. For OptiX and
Embree, BVH packing was also multithreaded.

The performance improvements may vary depending on the used device (CPU
or GPU), and the content of the scene. Simple scenes (e.g. with no adaptive
subdivision or volumes) rendered using OptiX will benefit from this work
the most.

On average, for a variety of animated scenes, this gives a 3x speedup.

Reviewed By: #cycles, brecht

Maniphest Tasks: T79174

Differential Revision: https://developer.blender.org/D9555

Refactor BMain relations temp data.

`bmain.relations` is used to store temp data of relations between IDs,
to speed-up some complex processes heavily relying on such information.

Previous implementation was failry unclear/confusing, and required a
not-so-nice hack to 'tag' some ID as processed.

New code changes as such:
* Using `from`/`to` naming (instead of `user`/`used`).
* More clear separation between `to` `id_pointer` and `from` one,
using an union instead of hacking around difference between `ID *` and
`ID **` pointers.
* Adds storage of `session_uuid` informations (mainly useful as
debug/ensuring proper consistency of data currently).
* Adds a structure per ID in the mapping. This enables possibility of
storing tags (and potentially more data in the future) per-ID,
without polluting the IDs themselves with very short-life info.

Differential Revision: https://developer.blender.org/D10164

EEVEE: Depth Of Field: Fix issue with slight focus filtering perf.

The issue was caused by wrong tile values.

EEVEE: Depth Of Field: Fix issue with neighborhood comparison

The filter was not using the correct UVs.

LibOverride: Add an 'post apply' callback to IDTypeInfo.

Currently this is needed to properly tag PointCache's for info update
(fixes an issue reported in T82503).

Suspect we may need this in more cases in the future though, RNA
assign/update processes are not always 100% enough to deal with
complicated corner cases.

Test derived normals write attribute

Merge branch 'blender-v2.92-release'

Cycles: Fix usage of double floating precision in CNanoVDB

Double floating point precision is an extension of OpenCL, which might
not be implemented by certain drivers, such as Intel Xe graphics.

Cycles does not use double floating point precision, and there is no
need on keeping doubles unless there is an explicit decision to use
them.

This is a simple fix from Cycles side to replace double floating point
type with a type of same size and alignment rules. Inspired by Brecht
and Patrick.

Tested on NVidia Titan V, Radeon RX Vega M, and TGL laptop.

Differential Revision: https://developer.blender.org/D10143

Merge branch 'master' into temp-geometry-nodes-normal-attribute

Functions: use better conversion from float2 to float3

Previously float2 was converted to float3 by implicitly converting to a
float pointer first, which was then passed to the float3 constructor.
This leads to uninitialized memory in the z component of the new float3.

Ideally this should be solved in float2/float3 itself, but my first fix for
that resulted in a compile error: rB6ac0a3d83c8e5a39bd5356aa0d68e3166bd91e82

This is an alternative fix that can be used for now. Will have to look
into the conversion in more detail again.