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  • Editor stopped interpolating between translate keyframes

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Hi guys,

Using Spine v3.4.02.
Not used Spine in a while and have been setting up some animations in the last couple of days.

Everything was going fine until earlier, when Spine suddenly stopped interpolating between my Translate keyframes, and a dashed line has started showing up on the dopesheet when I move a bone and key it, like so:

 Loading Image

Now the animation seems to be in "stepped" mode or something, where the keyframe jumps to the new bone position at each frame, rather than smoothly interpolating between them.

In the example in the pic, the first and last keys are at x: 0, the middle blue keyframe is at something like x: 16.
When playing it back the bone stays at x: 0, changes to x: 16 at the middle keyframe only, then jumps back to x: 0 again.
Ideally it would smoothly interpolate from 0 > 16 > 0 across all frames, which is how it usually worked.

This jumping didn't happen when the interpolation worked earlier, so I assume I may have inadvertently pressed a shortcut key as I have not changed any options manually using the mouse.

Other animations in the same skeleton also work fine, and I have checked the playback options and "Interpolate" is selected as it usually is by default.

I've scanned the docs and can't see anything obvious, nor find any info regarding dashed lines on the dopesheet .

Can anyone please tell me what I've done and how to fix it?

EDIT:
Creating a new animation seems to work normally again, but duplicating an existing animation causes this issue.
I have been duplicating to save time, and this has worked fine until now - is it possible I have changed a setting for a single animation somehow?

Simply open the graph section and click on one of these two buttons:
 Loading Image

the third one is the one that caused that stepped interpolation (:

Erikari escribió

Simply open the graph section and click on one of these two buttons:
 Loading Image

the third one is the one that caused that stepped interpolation (:

Thank you for the reply.

I checked the graph before I posted and for the affected animation everything is greyed out except "Presets", which just contains "default" and is unselectable.

EDIT:
Nevermind I'm an idiot - I didn't have the key selected, thank you it now works as expected again!

Any idea how this would have happened without me manually (or meaning to) changing anything?

Just checking, did you look at the graph while selecting only one of these keyframes?
 Loading Image

Lol I was just writing what you edited in the comment. Don't worry, it can happen (:

Erikari escribió

Just checking, did you look at the graph while selecting only one of these keyframes?
 Loading Image

Sorry, I must have edited my last post as you were replying.
Yeah the keyframes were set to "stepped" as you described in the graph editor and changing it back fixed the behaviour back to being interpolated as I wanted - thank you!

I'm just curious as to how this change might have happened without me manually changing anything to do with the graph, I have just been creating keyframes as normal.

Is there a keyboard shortcut I may have fat fingered by accident?

Thanks again, saved me wasting a load of time wondering wtf was going on lol! 🙂

DoobyDude escribió

Any idea how this would have happened without me manually (or meaning to) changing anything?

Honestly I don't, looking at the cheatsheet there doesn't seem to be a hotkey that changes the interpolation:
Spine: Cheat Sheet

And your welcome (: I just happened to be online at the right time really

Erikari escribió
DoobyDude escribió

Any idea how this would have happened without me manually (or meaning to) changing anything?

Honestly I don't, looking at the cheatsheet there doesn't seem to be a hotkey that changes the interpolation:
Spine: Cheat Sheet

Yeah I had a look myself and didn't see anything, but I won't forget this going forward.

Ah well, thank you again for your help, I really appreciate it - you've saved me some serious hair pulling!

Look for the Views button: Views - Spine User Guide

And choose Graphs. That should make the Graphs view visible. Graph - Spine User Guide

In a nutshell, "Graphs" shows the interpolation settings for your currently selected keys.
Note the three curve types:

  • Linear (just plain interpolation)...
  • Bezier (with easing) and...
  • Stepped (no interpolation)

I'm not sure how your keys became stepped without you choosing anything.
If it happened by itself, do let us know if you know the steps that causes it.

Pharan escribió

I'm not sure how your keys became stepped without you choosing anything.
If it happened by itself, do let us know if you know the steps that causes it.

Hey Pharan,

Yeah I never opened the "graphs" view at all, and had been working on the skeleton on and off for a good few days without any problems so I'm not sure what happened to suddenly have every new key become stepped.

I was doing a fair bit of copying / renaming animations and then deleting and shifting keys etc, but if it happens again I will try and see if I can reproduce it and report it.