[TRACKER] Blending with AnimationPlayer is not working correctly

[TokageItLab]

Issue description

This is a tracker for a problem with AnimationPlayer blending not working as expected.

May be fixed by:

• https://github.com/godotengine/godot-proposals/issues/5972

Backlink to the tracker tracker. https://github.com/orgs/godotengine/projects/58/views/3

- [ ] https://github.com/godotengine/godot/issues/70207
- [ ] https://github.com/godotengine/godot/issues/72484
- [ ] https://github.com/godotengine/godot/issues/50280
- [ ] https://github.com/godotengine/godot/issues/36279
- [ ] https://github.com/godotengine/godot/issues/27509
- [ ] https://github.com/godotengine/godot/issues/70123
- [ ] https://github.com/godotengine/godot/issues/70338
- [ ] https://github.com/godotengine/godot/issues/79020

If there is anything else, please comment.

[limbonaut]

76127 is related.

[9cg]

It doesn't show the correct behaviour locally. Strangely, other players see the expected behaviour in multiplayer when AnimationPlayer is synchronised with MultiplayerSynchronizer.

[TokageItLab]

The most major issues have been resolved, but some of the rest will need a bit major fixes for minor updates, so I would punt them to 4.3.

[bertodelrio256]

I'm using 4.3 and noticed intermittently the custom blend time when calling .play() is ignored/defaulted. weird thing is I tried to create an MRP calling .play() at different times with different blend times, but it seemed to work fine so I canceled the issue. but in my production project, I'm seeing some blends just being ignored while others work fine. perhaps I'm not understanding how it works.. my assumption is the if I call .play("anim1", 0.3f) in process and then called .play("anim2", 3.0f) it should take 3 seconds to blend to that one right? I'm making many calls to animations before they finish with different blend times, could that be causing the issue? does the blend need to be reset somehow first?

[TokageItLab]

I'm making many calls to animations before they finish with different blend times

@bertodelrio256 If you are calling the same animation many time before finish blending, I assume there is some problem, related https://github.com/godotengine/godot/issues/72484.

[bertodelrio256]

I'm making many calls to animations before they finish with different blend times

@bertodelrio256 If you are calling the same animation many time before finish blending, I assume there is some problem, related #72484.

ahh interesting. So a queue is filled when calling multiple. I think my issue could be resolved perhaps by only doing one call to .play() per physics tick and just have my states just change the string that it uses for that one call.

anyway looking forward to what you come up with in the new blending system. I hate using animation trees. honestly being able to everything in code would be a dream.

[bertodelrio256]

I just wanted to mention that I was able to resolve all of the blending issues by only calling .play once if the animation changed. looks like you cannot call .play every frame or the blends wont work...

if(anim_player.AssignedAnimation != current_clip)
        {
            anim_player.Play(current_clip, current_clip_blend);
        }