public static void CreateFromMatrix(ref Matrix matrix, out Matrix3x3 matrix3x3)
{
matrix3x3.X = new Vector3(matrix.X.X, matrix.X.Y, matrix.X.Z);
matrix3x3.Y = new Vector3(matrix.Y.X, matrix.Y.Y, matrix.Y.Z);
matrix3x3.Z = new Vector3(matrix.Z.X, matrix.Z.Y, matrix.Z.Z);
}