private static void ProcessAnimation(AnimationClip clip, MouthModel mouthModel, Transform animationRoot, Transform jawRoot)
{
var bindings = AnimationUtility.GetCurveBindings(clip);
var uBinding = bindings.FirstOrDefault(binding => binding.propertyName == "material._MainTex_mouth_ST.z");
var vBinding = bindings.FirstOrDefault(binding => binding.propertyName == "material._MainTex_mouth_ST.w");
if (uBinding.path == null || vBinding.path == null)
{
Debug.LogWarning("Couldn't find animation binding for clip " + clip.name);
return;
}
var uCurve = AnimationUtility.GetEditorCurve(clip, uBinding);
var vCurve = AnimationUtility.GetEditorCurve(clip, vBinding);
var snapshotsAtPath = new Dictionary<string, AnimationSnapshotData>();
for (int i = 0; i < uCurve.keys.Length; i++)
{
// We can assume that that the curves for the U and V value have the same keyframes
Vector2 uvValue = new Vector2(uCurve.keys[i].value, vCurve.keys[i].value);
mouthModel.CurrentPoseIndex = RtdxTextureToMouthType.ContainsKey(uvValue) ? RtdxTextureToMouthType[uvValue] : 0;
TraverseRig(jawRoot, snapshotsAtPath, GetRelativePath(jawRoot, animationRoot), uCurve.keys[i].time);
}
foreach (var snapshot in snapshotsAtPath)
{
snapshot.Value.ApplyToClip(clip);
clip.EnsureQuaternionContinuity();
}
AnimationHelpers.SetAnimationTangentsToConstant(clip);
}
private static UnityEngine.AnimationClip ProcessClip(AssetStudio.AnimationClip animationClip, string savePath, string bundleName,
string materialAttributeName, CoordinateAttributeSet attributeSet, UnityEngine.SkinnedMeshRenderer[] skinnedMeshRenderers)
{
var uCurve = new UnityEngine.AnimationCurve();
var vCurve = new UnityEngine.AnimationCurve();
var clip = animationClip.m_MuscleClip.m_Clip;
var streamedFrames = clip.m_StreamedClip.ReadData();
var clipBindingConstant = animationClip.m_ClipBindingConstant;
for (int frameIndex = 1; frameIndex < streamedFrames.Count - 1; frameIndex++)
{
StreamedClip.StreamedCurveKey uCoordKey = null, vCoordKey = null;
foreach (var key in streamedFrames[frameIndex].keyList)
{
var binding = clipBindingConstant.FindBinding(key.index);
if (binding.attribute == attributeSet.UAttribute)
{
uCoordKey = key;
}
else if (binding.attribute == attributeSet.VAttribute)
{
vCoordKey = key;
}
}
if (uCoordKey == null || vCoordKey == null)
{
continue;
}
// Round to 0.25 steps since the input UVs might not match perfectly
var roundedUv = new Vector2(Mathf.Round(uCoordKey.value * 4) / 4, Mathf.Round(vCoordKey.value * 4) / 4);
var value = RtdxTextureTo2x4Mappings[roundedUv];
uCurve.AddKey(streamedFrames[frameIndex].time, value.x);
vCurve.AddKey(streamedFrames[frameIndex].time, value.y);
}
var newClip = new UnityEngine.AnimationClip {
frameRate = animationClip.m_SampleRate
};
foreach (var skinnedMeshRenderer in skinnedMeshRenderers)
{
AnimationUtility.SetEditorCurve(newClip, new EditorCurveBinding
{
path = skinnedMeshRenderer.gameObject.name,
type = typeof(UnityEngine.SkinnedMeshRenderer),
propertyName = $"material.{materialAttributeName}.z"
}, uCurve);
AnimationUtility.SetEditorCurve(newClip, new EditorCurveBinding
{
path = skinnedMeshRenderer.gameObject.name,
type = typeof(UnityEngine.SkinnedMeshRenderer),
propertyName = $"material.{materialAttributeName}.w"
}, vCurve);
}
// We need to use this stupid workaround instead of doing it when adding the key because
// apparently it glitches if the curve wasn't added to an animation
AnimationHelpers.SetAnimationTangentsToConstant(newClip);
string animationPath = $"{savePath}/{animationClip.m_Name}.anim";
AssetDatabase.CreateAsset(newClip, animationPath);
AssetImporter.GetAtPath(animationPath).assetBundleName = bundleName;
return(newClip);
}