just writing to confirm that this set of skew values does indeed lead to a singular transformation matrix. This set of values should be forbidden but apparently is not forbidden. The problem with a singular matrix is that it cannot be inverted. If you attempt to invert it you get a 0/0 division problem, which is inherently ambiguous.
just writing to confirm that this set of skew values does indeed lead to a singular transformation matrix. This set of values should be forbidden but apparently is not forbidden. The problem with a singular matrix is that it cannot be inverted. If you attempt to invert it you get a 0/0 division problem, which is inherently ambiguous.