Description:
If you paste keys with Bezier curve type and then change the curve type of the keys before the pasted keys to Bezier from Linear, the bone's movement appears to snap just before the pasted key. The curve appears to be smoothly connected in the Graph view, so there is a discrepancy with the actual behavior. In the animated GIF below, you can see the snapping occurring around frame 20 (Though the curve you can see in the Graph view is smoothly connected).:
Expected behavior:
Snapping does not occur and the bone's movement is connected smoothly:
Select the animation named 02_Second-half and copy all keys on the timeline.
Select the animation named 01_First-half and paste the keys after the existing keys. (Do not overwrite the existing key, but paste the key a few frames later than the existing key.)
Select the keys that were originally in 01_First-half and set the curve type to Bezier.
Play the animation and you will find the root bone's movement is snapped when the timeline bar approaches the pasted keys.
If for some reason it does not work, you can play 04_Combined-and-turn-to-bezier<BUG> to see the snapping bug.
Workarounds:
As a workaround, you can change the curve type of the key immediately before the key being pasted to Bezier before pasting the key. Also, even if the snapping problem happens, it can be fixed by making the curve type of the key where snapping occurs Linear or Stepped once and then Bezier again.
The version of Spine in which this issue was found:
Spine 4.1.23
NathanSweet
commented
6 months ago
Description: If you paste keys with
Beziercurve type and then change the curve type of the keys before the pasted keys toBezierfromLinear, the bone's movement appears to snap just before the pasted key. The curve appears to be smoothly connected in the Graph view, so there is a discrepancy with the actual behavior. In the animated GIF below, you can see the snapping occurring around frame 20 (Though the curve you can see in the Graph view is smoothly connected).:Expected behavior: Snapping does not occur and the bone's movement is connected smoothly:
Steps to reproduce:
02_Second-halfand copy all keys on the timeline.01_First-halfand paste the keys after the existing keys. (Do not overwrite the existing key, but paste the key a few frames later than the existing key.)01_First-halfand set the curve type toBezier.rootbone's movement is snapped when the timeline bar approaches the pasted keys.If for some reason it does not work, you can play
04_Combined-and-turn-to-bezier<BUG>to see the snapping bug.Workarounds: As a workaround, you can change the curve type of the key immediately before the key being pasted to
Bezierbefore pasting the key. Also, even if the snapping problem happens, it can be fixed by making the curve type of the key where snapping occursLinearorSteppedonce and thenBezieragain.The version of Spine in which this issue was found: Spine 4.1.23
This issue was reported on the following forum post: https://esotericsoftware.com/forum/d/24418-graph-editor-causing-unexpected-snapping/