private void Start()
{
faceMesh = faceSkin.sharedMesh;
blendShapeValueBuffer = new float[faceMesh.blendShapeCount];
previousFace = defaultFace;
}
private void Trigger(FacialExpressionPreset face)
{
if (animating)
{
return;
}
StartCoroutine(ChangeFaceTo(face));
}
IEnumerator ChangeFaceTo(FacialExpressionPreset currentFace)
{
animating = true;
float t = 0;
while (t < changeTime)
{
float fraction = t / changeTime;
Zero();
// Previous
float weight = 1 - fraction;
previousFace.targetBlendshapePairs.ForEach(blendShapeIndexPair =>
{
blendShapeValueBuffer[blendShapeIndexPair.Index] += blendShapeIndexPair.MaxValue * weight;
});
// Current
weight = fraction;
currentFace.targetBlendshapePairs.ForEach(blendShapeIndexPair =>
{
blendShapeValueBuffer[blendShapeIndexPair.Index] += blendShapeIndexPair.MaxValue * weight;
});
t += Time.deltaTime;
yield return(null);
}
animating = false;
previousFace = currentFace;
}