Wrong spinebone orientation in Rigify-Wolf #95864
Labels
No Label
Interest
Animation & Rigging
Interest
Blender Cloud
Interest
Collada
Interest
Core
Interest
Documentation
Interest
Eevee & Viewport
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
Import and Export
Interest
Modeling
Interest
Modifiers
Interest
Nodes & Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds, Tests & Devices
Interest
Python API
Interest
Rendering & Cycles
Interest
Sculpt, Paint & Texture
Interest
Translations
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Meta
Good First Issue
Meta
Papercut
Module
Add-ons (BF-Blender)
Module
Add-ons (Community)
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
5 Participants
Notifications
Due Date
No due date set.
Dependencies
No dependencies set.
Reference: blender/blender-addons#95864
Loading…
Reference in New Issue
No description provided.
Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.23
2.93.6 3.01. and 3.2.0Alpha
Broken: version: 2.93.6, branch: master, commit date: 2021-11-16 14:54, hash:
blender/blender@c842a90e2fin the rigify-animal-wolf setup the spine-bones are not aligned to the same axis
This creates an error when assigning this as an ArmatureDeformer,
Cat,Horse is correct
Wolf actually has two bones that are misaligned
Exact steps for others to reproduce the error
first the cat and horse spine
all bones from the spine had the same Boneroll.
This ist the wolf in edit-mode bone spine.004 and spine.006 facing in posZ
the result is, after assigning the generated rig
the geometry in these areas immediately rotates 180 degrees or when I rotate the hips-ctrl I see another area that rotates
to avoid this behavior
these 2 bones should be realigned
old
new
all bones with same orientation:
blenderfile original Rigify
wolf_original_setup_rigged.blend
and the fixed version
wolf_spine_roll_fix_rigged.blend
Added subscriber: @walt-3
#92452 was marked as duplicate of this issue
Added subscribers: @angavrilov, @iss
Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'
@angavrilov do you think this is something that could be improved?
Added subscriber: @icappiello
Changed status from 'Needs Developer To Reproduce' to: 'Confirmed'
@iss i think all metarigs need some tweaking after latest rigify upgrades. Unfortunately i had almost no time available to do it, but it’s on my schedule.
Flipped bone rolls could be a side effect of https://developer.blender.org/D9551. Versioning should update old Blender files, but it can't do anything to metarigs stored as python scripts.
The real problem here is spine and tail bones parallel to the world Y axis. Bone roll becomes unstable for bones pointing exactly in the -Y direction (for tail this happens because deform bones are flipped), causing inconsistencies. This probably should be added as a big warning in the documentation.
This issue was referenced by
c49befa432Changed status from 'Confirmed' to: 'Resolved'
Added subscribers: @Ishy123, @TodorNikolov, @LukasTonne, @PratikPB2123