Blender Git Loki

Fix T78186: Dyntopo panel error with tools that dont have a brush

Maniphest Tasks: T78186

Differential Revision: https://developer.blender.org/D8120

Fix critical bug in foreach ID looper of Scene data-block.

Since stone age of lib_query, the code would iterate over the current
list of active sequences (from a meta strip e.g.), and not over the
whole list of those.

This is a critical issue as it means in some cases (editing a meta strip
typically), some ID pointers would be missed/ignored by this foreach
looper, which is now at the center of most of our ID management code.

This caused a bug here at the studio, leading to loss of all sound IDs
used by sound strips when editing and undoing inside a meta strip, since
ID refcounting would not happen properly on strips using sounds outside
the meta-strip context during file reading of the undo steps.

To be backported to 2.83.

Differential Revision: https://developer.blender.org/D8671

Fix T79935: Inonsistent simplify behavior when linking collection with objects in sub-collection.

RNA update function would only update objects from 'main' instantiated
collection, not those from sub-collections.

This should be comitted to 2.90 (and backported to 2.83 too).

Maniphest Tasks: T79935

Differential Revision: https://developer.blender.org/D8654

MEM_guardedalloc: allow freeing const arrays with MEM_SAFE_FREE

'const' arrays couldn't use this macro with GNUC.

GPUTexture: Extend CUBE_MAP_ARRAY_ARB proxy workaround to all Apple gpus

Related to T79716

Fix warning when compiling on Linux with WITH_XR_OPENXR enabled

Fix constant lighting change in VR view when rotating head

We have to explicitly enable fixed world space lighting. This was in
fact already done, but overridden by the code to sync the 3D View
shading settings to the VR view.

Fix/workaround graphics issues breaking SteamVR use with Blender

Windows only workaround. I'll have to investigate Linux separately.

Steam's OpenGL compatibility is still new and doesn't work for us yet
(neither does it for standard OpenXR examples from what I've heard and
seen myself). We can work around that by falling back to our DirectX
compatibility layer.
Note that this DirectX compatibility still doesn't work for some
systems, see T76082.

Implementation note: Since the graphics binding extensions have to be
enabled before we can find out which runtime is in use (e.g. SteamVR vs.
Oculus, etc), we can now enable multiple graphics binding extensions but
settle for a single one to use later.

Once the SteamVR OpenGL backend works, we can remove this workaround
again.

Fixes T78267.

VR: Properly support outputting sRGB swapchain buffers

Latest SteamVR OpenXR updates brought OpenGL support, but only with sRGB
buffers. I think for DirectX it's the same now.
It's not a big issue for us to use sRGB buffers, so that's what I will
do for now. That way we shouldn't need hardcoded exceptions for specific
runtimes that don't transform linear buffers correctly.

Fix T78038: Cycles crash rendering with volume object and motion blur

Bumped version to blender 2.83.6 beta

Blender 2.83.5-release

Fix T79703 EEVEE: Crash on Macos due to lightcache baking

Fix T77885: crash rendering grease pencil from compositor with multiple scenes

Fix T79676: Video Sequencer image sequence strip source path breaks when
saving with 'Remap Relative' option

Caused by rBf7386b97571e.

Logic in BKE_bpath_traverse_main calls the callback multiple times [as
often as there are images in the strip].

Prior to above commit, the callback was
'bpath_relative_convert_visit_cb' [this one did not have this problem -
since it returned early if the path was already made relative once]

After rBf7386b97571e though, the 'bpath_relative_rebase_visit_cb' is
used [this one should not be entered multiple times, it would modifiy the
directy again and again].

Luckily, we have a flag (BKE_BPATH_TRAVERSE_SKIP_MULTIFILE) that can be
used to prevent this (this will take care of only calling the callback
once in BKE_bpath_traverse_main for the VSE case)

Could be backported to 2.83 I think.

Maniphest Tasks: T79676

Differential Revision: https://developer.blender.org/D8536

Fix T79324: Crash when changing View Layer while VR session runs

Proper handling of View Layers for the VR session was never implemented.
Now the View Layer of the VR session follows the window the session was
started in.
Note that if this window is closed, we fallback to another window. This
is done to avoid the overhead it would take to maintain a separate
depsgraph for the VR view. Instead we always share some already visible
View Layer (and hence the depsgraph).

Fix T77847: "Add plane > align" causes crash when certain rigs are in the scene (2.83, fixed in 2.90).

Root of the issue was not fixed in 2.90, only hidden by the fact that we
now re-read much less data during undo's that we used to, when some new
datablock gets added or removed.

This is not an ideal solution (as usual when dealing with data pointers
shared across data-blocks), but it's decent enough. thanks a lot to
@brecht for it!

To be backported to 2.83 too.

Fix T79482: Triangulate quads with 'Beauty' can make zero area faces

Fix crash switching render slots when there is only one slot

Fix T79575: Crash loading nested set-scenes