public void LookAt(OpenTK.Vector3 at, OpenTK.Vector3 up)
{
var zaxis = (at - Position).Normalized();
var xaxis = OpenTK.Vector3.Cross(up, zaxis).Normalized();
var yaxis = OpenTK.Vector3.Cross(zaxis, xaxis);
var mat = new OpenTK.Matrix3(xaxis, yaxis, zaxis);
Rotation = mat.ExtractRotation();
}
public static GenericBone ToBone(byte[] data)
{
if (data.Length == 0)
{
return(null);
}
GenericBone bone = new GenericBone();
using (DataReader r = new DataReader(new System.IO.MemoryStream(data)))
{
bone.ID = r.ReadInt32();
bone.ParentIndex = r.ReadInt32();
r.Skip(4);
r.Seek(0xC);
bone.Position = new OpenTK.Vector3(r.ReadSingle(), r.ReadSingle(), r.ReadSingle());
var rot = new OpenTK.Matrix3(r.ReadSingle(), r.ReadSingle(), r.ReadSingle(),
r.ReadSingle(), r.ReadSingle(), r.ReadSingle(),
r.ReadSingle(), r.ReadSingle(), r.ReadSingle());
bone.QuaternionRotation = rot.ExtractRotation().Inverted();
bone.Scale = new OpenTK.Vector3(r.ReadSingle(), r.ReadSingle(), r.ReadSingle());
}
return(bone);
}