How to get animation clip start and end times from an imported FBX?

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1

I’ve got an imported FBX file with animation in it. I’ve split that animation into clips. I’m writing an editor script to ensure these clips don’t overlap. However, I can’t seem to find any way of getting the start and end time of an animation clip when it belongs to an FBX. The only thing I can find is a length property.

GameObject gameObject = (GameObject)AssetDatabase.LoadAssetAtPath(assetPath, typeof(GameObject));
foreach (AnimationState state in gameObject.animation) {
    // state.clip...?
}

47647-cliprange.png

2 Answers

2
2

I figured out that I can get access to the ModelImporter for the FBX file. From there I can access its clipAnimations array. The ModelImporterClipAnimation objects have .startFrame and .endFrame properties.

ModelImporter modelImporter = (ModelImporter)AssetImporter.GetAtPath(assetPath);
ModelImporterClipAnimation clip = modelImporter.clipAnimations[0]; // get first clip
Debug.Log(clip.startFrame);
Debug.Log(clip.stopFrame);

Note that these are frames, not float time. However, this corresponds to the frame numbers in the FBX inspector. To convert the frames to time, simply multiply by the animationClip.frameRate.

3

Update (for ~ Unity 5.3) : .startFrame and .stopFrame do not seem to exist anymore. There is a “.firstFrame” and “.lastFrame” which are floats.

I guess there are some fringe cases where you’d want an animation to start inbetween keyframes or something?