GPV3 Running repeat on duplicate and shift keyframe does not work #130793
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Reference: blender/blender#130793
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System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 565.90
Blender Version
Broken: version: 4.3
Worked: 4.2
Short description of error
GPV3，Timeline and animation photography sheet cannot use the shortcut key shift+r
Exact steps for others to reproduce the error
1.creat GP
2.draw something
3.copy keyframes to frame 5 or other positions
4.use shift +R,in previous versions, keyframes were copied again and moved backwards by the same frame, but now they become invalid
I can confirm this change of behaviour between Blender 4.2 and 4.3+. I will mark as high severity as it is a regression.
Considering you're talking about Grease Pencil v3, I would assume that 4.3 is the actually broken version and have updated the report.
For future reports, please fill out this information accurately.
GPV3，Timeline and animation photography sheet cannot use the shortcut key shift+rto GPV3 Running repeat on duplicate and shift keyframe does not workLooks like all Grease Pencil Dopesheet operators are failing. Will check
Regarding paste operator, previous frame is deleted and replaced with new keyframe so drawing is not duplicated (same strokes and points on that frame). So "repeat" operation makes no change.
I might be misunderstanding. Can someone explain these steps further? Are we running "paste" operation then "repeat: Shift R" operation?
I was selecting the keyframe in the time line, then duplicating it with
Shift + D, shifting with my mouse, clicking to confirm the duplicate and move, then running the repeat commandShift + RMight be because duplicate is two operators: duplicate + move.
Also looks like a undo thing. I tried
Duplicate Moveoperation in time line, and use the undo panel to adjust values, the newly created frame will immediately disappear :/Maybe there is a way to group the undo step for the operator macro.
I see, this is about "duplicating keys". Can take a look later.
OPTYPE_UNDO_GROUPED?CC @amelief (
127eee87ce)Seems a bit unconventional to tie these two (duplicate & move) so close together?
If you just call duplicate (
ACTION_OT_duplicate), you get nothing (since it is just some temporary runtime thingie which then gets further processed by the transform system? -- but havent spent time digging deeper...) ?!Yes, just duplicate doesn't make any sense for Grease Pencil. It's not possible to have a keyframe that's on the same frame as another keyframe.
And making this duplicate+move it's own separate operator also is an issue, because we'd have to reimplement a lot of the transform code then.
OK, thx for the info. Not really sure how to handle that then
Seems to me that we probably would need to make an exception case in the transform operator and the GP call to duplicate frames, otherwise we can't use the transform operator combo to do achieve such things...
@ChengduLittleA Not exactly sure what you mean but the transform operator already has a setting
use_duplicated_keyframesthat tells it to move keys that just have been duplicated.But apparently now it will snap on shift-r... Probably will take a closer look on how it failed. Undo is quite a myth
Yes, that is the reason why they are so tied. I think with the old structure, it was creating some kind of ghost duplicate frame that lived in the structure but was not displayed, but with the new one that is just impossible to do.
I do not know how to fix this for the undo, sorry.