/// <summary>
/// Read a transformation matrix and attach to the current frame
/// </summary>
/// <param name="node"></param>
/// <param name="depth"></param>
/// <param name="thisFrame"></param>
private static void LoadTransformationMatrix(XFileData node, int depth, JointFrame thisFrame)
{
try
{
// Debug.WriteLine(Depth(depth) + "Creating Matrix for "+thisFrame.Name);
GraphicsStream stream = node.Lock(); // access the data stream
thisFrame.TransformationMatrix = MatrixFromXFile(stream); // read in the matrix
node.Unlock();
}
catch (Exception e)
{
Debug.WriteLine("Error reading transformation matrix: "+e.ToString());
throw;
}
}
/// <summary>
/// Read an AnimationKey node and load its transformation into the given frame
/// </summary>
/// <param name="node"></param>
/// <param name="frame"></param>
private static void LoadKeyframes(XFileData node, JointFrame frame)
{
int keyType = 0, keyFrames = 0;
int keyTime = 0, keyValues = 0;
Quaternion q = new Quaternion();
Vector3 v = new Vector3();
GraphicsStream stream = node.Lock(); // Lock the node and obtain a stream
keyType = (int)stream.Read(keyType.GetType()); // get the keyframe type (rotation, etc.)
keyFrames = (int)stream.Read(keyFrames.GetType()); // get the number of keyframes (should be 2)
if (keyFrames>2) throw new Exception("XFile "+filespec+" should have only two keyframes per animation");
for (int i=0; i<keyFrames; i++)
{
keyTime = (int)stream.Read(keyTime.GetType()); // time of key (ignored)
keyValues = (int)stream.Read(keyValues.GetType()); // number of values in key (ignored)
switch (keyType)
{
// Rotation
case 0:
q = ReadQuaternion(stream); // get the transformation
if (rmin == false) // store it in min or max
{
motion.RotationMin = q; // (min first, then max if min is full)
motion.RotationMax = q; // (fill max too in case no 2nd key)
rmin = true;
}
else
motion.RotationMax = q;
break;
// Translation
case 1:
v = ReadVector(stream);
if (smin == false)
{
motion.ScaleMin = v;
motion.ScaleMax = v;
smin = true;
}
else
motion.ScaleMax = v;
break;
// Scale
case 2:
v = ReadVector(stream);
if (tmin == false)
{
motion.TranslationMin = v;
motion.TranslationMax = v;
tmin = true;
}
else
motion.TranslationMax = v;
break;
}
}
node.Unlock(); // release the node
}