protected void TransformTrack(Matrix4 unscaledTransform, float scale,
Animation newAnim, Animation anim, Bone bone)
{
AnimationTrack track = GetBoneTrack(anim, bone.Handle);
AnimationTrack newTrack = GetBoneTrack(newAnim, bone.Handle);
Bone oldNode = (Bone)track.TargetNode;
Bone newNode = (Bone)newTrack.TargetNode;
Quaternion exportRotation = GetRotation(unscaledTransform);
Vector3 exportTranslation = unscaledTransform.Translation;
for (int i = 0; i < track.KeyFrames.Count; ++i)
{
KeyFrame keyFrame = track.KeyFrames[i];
Quaternion oldOrientation = Quaternion.Identity;
Vector3 oldTranslation = Vector3.Zero;
// Now build the composite transform for the old node
GetCompositeTransform(ref oldOrientation, ref oldTranslation, oldNode, anim, i);
Quaternion targetOrientation = exportRotation * oldOrientation;
Vector3 targetTranslation = exportTranslation + scale * (exportRotation * oldTranslation);
KeyFrame newKeyFrame = newTrack.CreateKeyFrame(keyFrame.Time);
// we have a parent - where is it?
Quaternion parentOrientation = Quaternion.Identity;
Vector3 parentTranslation = Vector3.Zero;
GetCompositeTransform(ref parentOrientation, ref parentTranslation, (Bone)newNode.Parent, newAnim, i);
newKeyFrame.Rotation = newNode.Orientation.Inverse() * parentOrientation.Inverse() * targetOrientation;
newKeyFrame.Translate = (-1 * newNode.Position) + (-1 * parentTranslation) + targetTranslation;
}
}
protected void ReadKeyFrame(XmlNode node, AnimationTrack track)
{
float time = float.Parse(node.Attributes["time"].Value);
// create a new keyframe with the specified length
TransformKeyFrame keyFrame = (TransformKeyFrame)track.CreateKeyFrame(time);
foreach (XmlNode childNode in node.ChildNodes)
{
switch (childNode.Name)
{
case "translate":
keyFrame.Translate = ReadVector3(childNode);
break;
case "rotate":
ReadRotate(childNode, keyFrame);
break;
default:
DebugMessage(childNode);
break;
}
}
}
protected void AddKey(AnimationTrack track, float time, Vector3 translate)
{
TransformKeyFrame key = (TransformKeyFrame)track.CreateKeyFrame(time);
key.Translate = translate;
}