Unity之如何从fbx提取Animation clip文件

从 fbx 中提取 clip 文件，选中 clip 按 Ctrl + D 就可以实现。

但有时候需要工具来做这件事情，

提取的同时对 clip 进行了压缩，并且去除了scale

代码如下：

    static AnimationClip GenerateAnimClip(string fbx, string savePath)
    {
        AnimationClip src = AssetDatabase.LoadAssetAtPath<AnimationClip>(fbx);
        AnimationClip temp = new AnimationClip();
        EditorUtility.CopySerialized(src, temp);
        CompressAnimationClip(temp);                // 压缩 anim clip
        RemoveAnimClipScale(temp);                  // 去除 scale
        CreateDirectory(savePath);
        AssetDatabase.CreateAsset(temp, savePath);
        EditorUtility.SetDirty(temp);
        return temp;
    }

    static void RemoveAnimClipScale(AnimationClip clip)
    {
        foreach (EditorCurveBinding theCurveBinding in AnimationUtility.GetCurveBindings(clip))
        {
            string name = theCurveBinding.propertyName.ToLower();
            if (name.Contains("scale"))
            {
                AnimationUtility.SetEditorCurve(clip, theCurveBinding, null);
            }
        }
    }

    public static bool CompressAnimationClip(AnimationClip clip)
    {
        try
        {
            AnimationClipCurveData[] curves = AnimationUtility.GetAllCurves(clip);
            Keyframe key;
            Keyframe[] keyFrames;
            for (int ii = 0; ii < curves.Length; ++ii)
            {
                AnimationClipCurveData curveDate = curves[ii];
                if (curveDate.curve == null || curveDate.curve.keys == null)
                {
                    //Debug.LogWarning(string.Format("AnimationClipCurveData {0} don't have curve; Animation name {1} ", curveDate, animationPath));
                    continue;
                }
                keyFrames = curveDate.curve.keys;
                for (int i = 0; i < keyFrames.Length; i++)
                {
                    key = keyFrames[i];
                    key.value = float.Parse(key.value.ToString("f3"));
                    key.inTangent = float.Parse(key.inTangent.ToString("f3"));
                    key.outTangent = float.Parse(key.outTangent.ToString("f3"));
                    keyFrames[i] = key;
                }
                curveDate.curve.keys = keyFrames;
                clip.SetCurve(curveDate.path, curveDate.type, curveDate.propertyName, curveDate.curve);
            }
            //AssetDatabase.CreateAsset(clip, animationPath);
            Debug.Log(string.Format("  CompressAnimationClip {0} Success !!!", clip.name));
            return true;
        }
        catch (Exception e)
        {
            Debug.LogError(string.Format("CompressAnimationClip Failed !!! animationPath : {0} error: {1}", clip.name, e));
            return false;
        }
    }

转载请注明出处：https://www.cnblogs.com/jietian331/p/7264367.html