NLA: Sync Length Strip After Transition Broken #82774

New Issue

Wayde Moss · 2020-11-17T10:01:02+01:00

Wayde Moss commented

2020-11-17 10:01:02 +01:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66

Blender Version
Broken: version: 2.92.0 Alpha, branch: Unknown, commit date: Mon, Nov 16, 10:10 PM, hash: 797dfa6a0a
Worked: Not introduced by, but now possible to occur by D7602: NLA: Fix Sync Length

Short description of error

When strip B is Sync Length-ed and the left bound is past the start of the transition, then all strips to the right of the transition are offset instead of all the strips to the left of B. D7602: NLA: Fix Sync Length allows this situation to occur.

Exact steps for others to reproduce the error
sync_action_prev_effect.blend
Open the attached blend file.
Enter tweak mode strip B
Move the left most keyframe to frame 20 (past the start of the adjacent transition)
Exit tweak mode on B
Sync Length on B
~Error situation (the video shows that transform operators easily break in this situation)

nla_strip_sync_transition.mp4

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66 **Blender Version** Broken: version: 2.92.0 Alpha, branch: Unknown, commit date: Mon, Nov 16, 10:10 PM, hash: `797dfa6a0a` Worked: Not introduced by, but now possible to occur by [D7602: NLA: Fix Sync Length](https://archive.blender.org/developer/D7602) **Short description of error** ![image.png](https://archive.blender.org/developer/F9309287/image.png) When strip B is `Sync Length`-ed and the left bound is past the start of the transition, then all strips to the right of the transition are offset instead of all the strips to the left of B. [D7602: NLA: Fix Sync Length](https://archive.blender.org/developer/D7602) allows this situation to occur. **Exact steps for others to reproduce the error** [sync_action_prev_effect.blend](https://archive.blender.org/developer/F9309443/sync_action_prev_effect.blend) Open the attached blend file. Enter tweak mode strip B Move the left most keyframe to frame 20 (past the start of the adjacent transition) Exit tweak mode on B Sync Length on B ~Error situation (the video shows that transform operators easily break in this situation) [nla_strip_sync_transition.mp4](https://archive.blender.org/developer/F9309415/nla_strip_sync_transition.mp4)

Wayde Moss commented

2020-11-17 10:01:02 +01:00

Added subscriber: @wbmoss_dev

Wayde Moss self-assigned this 2020-11-17 10:01:34 +01:00

Wayde Moss commented

2020-11-17 10:01:34 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'