public override int GetWriteDataLength()
{
int length = 52; // 4 * 13
length += this.PositionKeys.Count * 4;
length += this.RotationKeys.Count * 4;
length += this.ScaleKeys.Count * 4;
length += this.Positions.Count * 12;
length += this.Rotations.Count * 16;
length += this.Scales.Count * 36;
return length;
}