You've definitely got options here. I do like a good top
gobo wash, but depending on the desired
effect, you can do toplight, backlight, sidelight or high sidelight, or sometimes from a
box boom/
torm position. Take a
fixture, put a
gobo in it, and put it in a few different places. See what you like. Each angle is going to produce a different direction of shadow, different amount of breakup on actors & set, and different amount of spread on the
pattern (from the angle it's coming from). I personally am quite partial to high side
gobo washes, sometimes from one side only depending on the show & setting. Creates interesting dimensionality.