How to make light pass through hole? How do I make light go through a half-moon shape hole so it can create a half moon? I wasn't seeing any light come out even though I played around with the strength and put a plane in front of it. No light seemed to emit out of the spotlight. I want it to be like a projector,I've seen other people forum of having the light flickering on and off so I get that.

Update !: I've made the volumetric lighting and plane as suggested, however, I still cannot make the light pass through the plane/half-moon shape without it completely ignoring the plane or shape. It just continues to make a round shape.
Never mind, I had the plane/object too close to the spot light. That's why it didn't work. It needed to be further away from the spot light. Thank you everyone who helped