[snip] > > Normally you don't bother to enable Z buffer writing when drawing the > transparent surfaces, because they are the last thing drawn, and it won't > matter. However, it doesn't hurt anything to enable it, other than slowing > it down a (...) (23 years ago, 19-Apr-02, to lugnet.cad.dev)
(...) Just check to see if the determinant of the matrix is negative. If it is, the matrix involves mirroring. --Travis Cobbs (tcobbs@REMOVE.halibut.com) (23 years ago, 19-Apr-02, to lugnet.cad.dev)
