Added playback control to animations in the Advanced Import Settings preview

[jeronimo-schreyer]

Describe the project you are working on

A project with many characters and animations, some of which were not properly named by the animator

Describe the problem or limitation you are having in your project

I'd like to be able to see animations before importing them

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Add a small button in the scene viewport to play/pause to the currently selected animation

godot_importer_animations-2023-04-17_19.04.08.mp4

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

Advanced Import Settings literally just instances the imported model in the 3D preview/space, so the AnimationPlayer node is just there to be played/paused

If this enhancement will not be used often, can it be worked around with a few lines of script?

implementation is just adding a button connected to a function that plays/pauses each animation

Is there a reason why this should be core and not an add-on in the asset library?

I don't think we can implement this on an add-on

[lyuma]

Is there a way to preview individual slices, as well?

For example, some models will have a single animation named "default" or "Take 001" and it will be split into slices in the import window. In your example, you have slices set to 0, which turns it off.

I think it would be cool if the slices show up in the inspector as children of the animation it came from, but unfortunately that's not currently how the import dialog works.

On a related note, if slices are difficult to implement, it would be nice to have a seek bar so I can manually seek to the various parts of the whole animation.

[jeronimo-schreyer]

There's actually another PR that implements the same as here but with the seek bar
godotengine/godot#76367

I think it adds too much information for a preview dialog. IMO seeking animations is already a part of the editing process, hence, it should be done in the scene editor.

I'll see what I can do about slices (I assume that you're talking about what is called NLA Strips in Blender)