in surface of rev demo, change t->x and rotation direction
in surface of rev demo, change t->x and rotation direction

stardust66/math3d,ChristopherChudzicki/math3d,ChristopherChudzicki/math3d,ChristopherChudzicki/math3d,stardust66/math3d,stardust66/math3d,stardust66/math3d,ChristopherChudzicki/math3d