internal static void scaleLocal(double x, double y, double z, ref Matrix matrix)
{
Matrix t = Matrix3DTools.createScaleMatrix(x, y, z);
Matrix3DTools.multiply33(ref t, ref matrix, ref matrix);
}
internal static void rotateLocal(double x, double y, double z, double degree, ref Matrix matrix)
{
Matrix t = Matrix3DTools.createRotationMatrix(x, y, z, degree);
Matrix3DTools.multiply33(ref t, ref matrix, ref matrix);
}