Returns a new 3x3 matrix created by concatenating a matrix with a rotation around the z-axis.
Original signature is 'GLKMatrix3 GLKMatrix3RotateZ ( GLKMatrix3 matrix, float radians );'
Available in OS X x0.8 and later.
public static GLKMatrix3 RotateZ (GLKMatrix3 matrix, float radians) { GLKMatrix3 rm = MakeZRotation (radians); return Multiply (matrix, rm); }
