Poselibrary 'flip pose' function is causing lattice controls to rotate unexpectedly #88281

New Issue

Rik Schutte · 2021-05-14T12:08:43+02:00

Rik Schutte commented

2021-05-14 12:08:43 +02:00

System Information
Operating system: Linux-5.8.0-7630-generic-x86_64-with-glibc2.32 64 Bits
Graphics card: AMD Radeon RX 5700 XT (NAVI10, DRM 3.38.0, 5.8.0-7630-generic, LLVM 11.0.0) AMD 4.6 (Core Profile) Mesa 20.3.2

Blender Version
Broken: version: 3.0.0 Alpha, branch: asset-browser-poselib, commit date: 2021-05-11 09:39, hash: 745505278d
Worked: (newest version of Blender that worked as expected)

Short description of error
When applying a pose including (lattice controls) with 'Flip Pose' enabled, the lattices behave unexpectedly, rotating in 180 degrees. even though their rotation value stored on the poselibrary is 0,0,0.

Exact steps for others to reproduce the error
Append/link a character with lattice controls in a file
after hitting 'n' in the viewport, Open the 'animation tab'
Create a pose with the lattices included and save it to the poselibrary. The pose will be stored in the 'current file'.
Then enable 'Flip Pose'.
Click and drag on the just created poselibrary pose and the lattice will rotate 180 degrees.

poselib_flippose_issue-yuv422.mp4

File has been included with a pose saved and applied to the file.

ellie_test_flipPose_issue.blend

The action 'ANI-Ellie_test_FlipPose' shows the keyed pose 'regular' on frame 10 and 'flipped' on frame 20

**System Information** Operating system: Linux-5.8.0-7630-generic-x86_64-with-glibc2.32 64 Bits Graphics card: AMD Radeon RX 5700 XT (NAVI10, DRM 3.38.0, 5.8.0-7630-generic, LLVM 11.0.0) AMD 4.6 (Core Profile) Mesa 20.3.2 **Blender Version** Broken: version: 3.0.0 Alpha, branch: asset-browser-poselib, commit date: 2021-05-11 09:39, hash: `745505278d` Worked: (newest version of Blender that worked as expected) **Short description of error** When applying a pose including (lattice controls) with 'Flip Pose' enabled, the lattices behave unexpectedly, rotating in 180 degrees. even though their rotation value stored on the poselibrary is 0,0,0. **Exact steps for others to reproduce the error** Append/link a character with lattice controls in a file after hitting 'n' in the viewport, Open the 'animation tab' Create a pose with the lattices included and save it to the poselibrary. The pose will be stored in the 'current file'. Then enable 'Flip Pose'. Click and drag on the just created poselibrary pose and the lattice will rotate 180 degrees. [poselib_flippose_issue-yuv422.mp4](https://archive.blender.org/developer/F10217845/poselib_flippose_issue-yuv422.mp4) File has been included with a pose saved and applied to the file. [ellie_test_flipPose_issue.blend](https://archive.blender.org/developer/F10221578/ellie_test_flipPose_issue.blend) The action 'ANI-Ellie_test_FlipPose' shows the keyed pose 'regular' on frame 10 and 'flipped' on frame 20

Rik Schutte commented

2021-05-14 12:08:43 +02:00

Added subscriber: @Rikstopher

Ankit Meel commented

2021-06-16 16:25:54 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2021-06-16 16:25:54 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Ankit Meel commented

2021-06-16 16:25:54 +02:00

changing status for the blend file

Sybren A. Stüvel commented

2021-07-09 15:20:39 +02:00

Added subscriber: @dr.sybren

Sybren A. Stüvel commented

2021-07-09 15:20:39 +02:00

This is caused by the X-axis of the bone pointing upwards:

The pose flipping code assumes that the X-axis of the bone is oriented left-right, and that thus flipping the X-axis will flip the pose correctly.

This is caused by the X-axis of the bone pointing upwards: ![image.png](https://archive.blender.org/developer/F10218086/image.png) The pose flipping code assumes that the X-axis of the bone is oriented left-right, and that thus flipping the X-axis will flip the pose correctly.

blender-admin commented

2021-07-09 17:24:16 +02:00

This issue was referenced by 72c34068cb

This issue was referenced by 72c34068cb44effc009a3adfa929a2c1bbdf802e

Sybren A. Stüvel commented

2021-07-09 17:38:49 +02:00

A potential fix is available in the temp-pose-flipping-fix-attempt branch, should be downloadable at https://builder.blender.org/download/experimental/ soon.

A potential fix is available in the `temp-pose-flipping-fix-attempt` branch, should be downloadable at https://builder.blender.org/download/experimental/ soon.

Sybren A. Stüvel commented

2021-07-13 15:57:28 +02:00

Changed status from 'Needs User Info' to: 'Confirmed'

Sybren A. Stüvel commented

2021-07-13 15:59:21 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Sybren A. Stüvel closed this issue

2021-07-13 15:59:21 +02:00

Sybren A. Stüvel self-assigned this 2021-07-13 15:59:21 +02:00

Sybren A. Stüvel commented

2021-07-13 15:59:21 +02:00

A fix has been committed in ac441249b4 to the asset-browser-poselib branch used by the Blender Studio animators. It'll be committed to master when the pose library itself gets committed.

A fix has been committed in ac441249b4 to the [asset-browser-poselib](https://developer.blender.org/diffusion/B/history/asset-browser-poselib/) branch used by the Blender Studio animators. It'll be committed to master when the pose library itself gets committed.

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Poselibrary 'flip pose' function is causing lattice controls to rotate unexpectedly #88281