/// <summary>
/// Reads bone information from the file.
/// </summary>
protected void ReadBone(XmlNode node)
{
// bone name
string name = node.Attributes["name"].Value;
ushort handle = ushort.Parse(node.Attributes["id"].Value);
// create a new bone
Bone bone = skeleton.CreateBone(name, handle);
foreach (XmlNode childNode in node.ChildNodes)
{
switch (childNode.Name)
{
case "position":
ReadPosition(childNode, bone);
break;
case "rotation":
ReadRotation(childNode, bone);
break;
default:
DebugMessage(childNode);
break;
}
}
}
protected void TransformSkeleton(Matrix4 exportTransform)
{
Matrix4 invExportTransform = exportTransform.Inverse();
Dictionary <string, Matrix4> fullInverseBoneTransforms = new Dictionary <string, Matrix4>();
Skeleton newSkeleton = new Skeleton(skeleton.Name);
// Construct new versions of the bones, and build
// the inverse bind matrix that will be needed.
for (ushort i = 0; i < skeleton.BoneCount; ++i)
{
Bone bone = skeleton.GetBone(i);
Bone newBone = newSkeleton.CreateBone(bone.Name, bone.Handle);
fullInverseBoneTransforms[bone.Name] = bone.BindDerivedInverseTransform;
}
// Build the parenting relationship for the new skeleton
for (ushort i = 0; i < skeleton.BoneCount; ++i)
{
Bone bone = skeleton.GetBone(i);
Bone newBone = newSkeleton.GetBone(i);
Bone parentBone = (Bone)bone.Parent;
if (parentBone != null)
{
Bone newParentBone = newSkeleton.GetBone(parentBone.Handle);
newParentBone.AddChild(newBone);
}
}
// Set the orientation and position for the various bones
// B' = T * B * Tinv
for (ushort i = 0; i < newSkeleton.BoneCount; ++i)
{
Bone bone = skeleton.GetBone(i);
string boneName = bone.Name;
string parentName = (bone.Parent == null) ? null : bone.Parent.Name;
Matrix4 transform = GetLocalBindMatrix(fullInverseBoneTransforms, boneName, parentName, true);
transform = exportTransform * transform * invExportTransform;
Quaternion orientation = GetRotation(transform);
Bone newBone = newSkeleton.GetBone(i);
newBone.Orientation = orientation;
newBone.Position = transform.Translation;
//if (newBone.Name == "Lower_Torso_BIND_jjj") {
// log.DebugFormat("New Bone Position: {0}", transform.Translation);
//}
}
newSkeleton.SetBindingPose();
for (int i = 0; i < skeleton.AnimationCount; ++i)
{
Animation anim = skeleton.GetAnimation(i);
Animation newAnim = newSkeleton.CreateAnimation(anim.Name, anim.Length);
TransformAnimation(exportTransform, newAnim, anim, newSkeleton);
}
skeleton = newSkeleton;
}
/// <summary>
/// Reads bone information from the file.
/// </summary>
protected void ReadBone(BinaryMemoryReader reader)
{
// bone name
string name = ReadString(reader);
ushort handle = ReadUShort(reader);
// create a new bone
Bone bone = skeleton.CreateBone(name, handle);
// read and set the position of the bone
Vector3 position = ReadVector3(reader);
bone.Position = position;
// read and set the orientation of the bone
Quaternion q = ReadQuat(reader);
bone.Orientation = q;
}
