Blender Git Loki

Fix T80530: Crash when switching to Edit Mode

caused by recent merge {33ac3582bbd5}

Fix T80159: Custom Normals Averaging crash after clearing
custom split normals data

Clearing custom split normals would get rid of the CD_CUSTOMLOOPNORMAL
layer - but editing data `lnor_spacearr` would be kept.

Adding a CD_CUSTOMLOOPNORMAL layer (if none exists yet) should be done
in `edbm_average_normals_exec` / `BKE_editmesh_lnorspace_update` /
`BM_lnorspace_update` / `BM_lnorspacearr_store`. The thing is that if
the editing data `lnor_spacearr` would still be valid after `Clear
Custom Split Normals Data`, blender would happily call
`BM_lnorspace_rebuild` instead. Doing that without a CD_CUSTOMLOOPNORMAL
layer is asking for trouble.

Now clear lnor_spacearr on `Clear Custom Split Normals Data` as well.

Thx @mont29 for feedback here.

Maniphest Tasks: T80159

Differential Revision: https://developer.blender.org/D8730

Fix crash accessing image space properties without an active window

Fix T77900: File Browser in macOS fullscreen crashes

When Blender is started in fullscreen mode from the command line,
or if the fullscreen state is saved in the startup file, all temporary windows
will also open in fullscreen mode. When closing the fullscreen File Browser,
Blender would either crash or parent window becomes black.

This does not happen if the Blender switches to full screen manually.

`NSWindowCollectionBehaviorFullScreenPrimary` should be set for windows that
can enter full-screen mode. Otherwise macOS will turn the wrong window into
full-screen.

Similar fix: rB4b39de677d20

Differential Revision: https://developer.blender.org/D8708

Reviewed by: Julian Eisel

Fix Outliner allowing to enter Pose Mode on linked armature

If a different object was active, clicking on a linked armature's pose
in the Outliner would enter Pose Mode for it.
This would actually cause a failed assert, but in release builds the
armature would just enter pose mode.

Steps to reproduce were:
* Link in armature object
* Activate a different object
* In the Outliner, un-collapse the armature object
* Activate Pose Mode by clicking on its pose there

Fix T80104: Crash on making material local.

Problem is again with the embedded data, we want to make those local
together with their owner ID, but sometimes we are actually dealing with
copies here, which are inheritently already local.

Code did not considered that possibility before, leading to access to a
NULL `lib` pointer.

This should also be back-ported to 2.83 LTS release.

Maniphest Tasks: T80104

Differential Revision: https://developer.blender.org/D8731

Fix T80078: Overrides: Crash with animated IK control on linked armature.

Issue was with our dear posebones again... when applying overrides we
keep the same address/pointer for the IDs themselves, (which avoids us
the need to remap their usages), but their inner data is often
re-allocated.

Therefore, we need once again to go over armature objects and invalidate
their posebone pointers.

This should also be back-ported to Blender LTS 2.83.

Maniphest Tasks: T80078

Differential Revision: https://developer.blender.org/D8734

Add undo step to Alembic and Collada importers...

Re T77754.

Fix T80135: Duplicate doesn't preserve active spline

Checks to preserve the active spline on duplication
required an active vertex too.

Now having no active vertex doesn't prevent duplicate
from keeping the spline active.

Reviewed by: @mano-wii

Ref D8729

VR: SteamVR is now a supported OpenXR runtime! (Windows only)

Steam just released a SteamVR update with OpenXR Developer Preview
support:
https://steamcommunity.com/games/250820/announcements/detail/2396425843528787270.

Once SteamVR is set up for OpenXR (see link above), it works with
Blender "out of the box", thanks to OpenXR!

We have to apply the sRGB transform workaround for SteamVR though,
otherwise it renders way too dark. Done in the next commit.

Note that AMD users may still only see a pink screen, because the
OpenGL-DirectX compatibility fails. I will check on a fix again.
For SteamVR on Linux we may have to wait for until it supports OpenGL
rendering for OpenXR. Alternatively, we *could* add initial Vulkan
support at Ghost level and use Vulkan<->OpenGL interoperability
extensions, Monado uses these as well.

Fix T78065: OSL shader compilation fails on macOS

Fix T77683: Cycles baking crash with motion blur enabled and no camera
specified

Maniphest Tasks: T77683

Differential Revision: https://developer.blender.org/D8593

BLI: fix memory leak in delaunay 2d

Differential Revision: https://developer.blender.org/D8633

Fix T80039: Do not subdivide with Multires is mesh has no faces

This skips the subdivision operation if the mesh has no loops, avoiding
the crash.

Reviewed By: sergey

Maniphest Tasks: T80039

Differential Revision: https://developer.blender.org/D8696

Fix T80077: Objects disappear when joining with a zero scaled axis

Use invert_m4_m4_safe_ortho when joining objects so zero scaled axis
doesn't cause all points to be scaled to zero.

Instead geometry is left un-scaled on degenerate axes.

Report a warning in this case since users may want to adjust the
active objects scale.

BLI_math_matrix: add invert_m4_m4_safe_ortho (m3 version too)

Unlike invert_m4_m4_safe, this calculates zeroed axes.
Useful when we need to use the inverse of an objects matrix,
keeping the valid axis, only filling in the zeroed ones.

Fix T79915: crash when changing to white noise texture

Reviewers: brecht, OmarSquircleArt

Differential Revision: https://developer.blender.org/D8697

Fix T80012: Bevel Shader node Samples value has too low hardcoded limit

Up the hard limit, keep the UI range max at 16

Maniphest Tasks: T80012

Differential Revision: https://developer.blender.org/D8701

Fix T77359: Crash adding UV's in edit-mode with linked duplicates

This prevents UV layer mix up in
MeshBatchCache.cd_used/cd_needed/cd_used_over_time which depends on the
extraction method.

One object's mesh can be accessed with MR_EXTRACT_MESH, another object
that uses the same mesh can use MR_EXTRACT_BMESH based on
(Object.mode & OB_MODE_EDIT), this causes a problem as the edit-mesh
and the mesh aren't always in sync, the custom data layers wont
necessarily match up, causing T77359.

Reviewed by @jbakker, @brecht

Ref D8645

Fix T79111: Cycles: Image Sequence not rendering

Caused by c7aa0f9d743ee9cafe91b4a51d9f1ecc5e437d71.

Since above commit, BKE_image_user_frame_calc requires an image (not
just the iuser) to get the framenumber.

Cycles used to call this with NULL image (in `image_user_file_path` and
`image_user_frame_number`), now pass the image as well.

Maniphest Tasks: T79111

Differential Revision: https://developer.blender.org/D8439