[…] Delta X, Delta Y and
Delta Z between two impact points. So
I don’t have to worry about making a
perfectly straight line (or sometimes
that’s just not possible), but still
get a correct measurement. Ceiling to
floor for example.
I’ll admit I’m not sure what you mean. Are you talking about locking an axis so the measurement is only done in a straight line? Or some kind of SnapToObject feature?
Or do you just want to display the delta at hit location?