We only see reflected light
It’s hilarious that the 3-D visualisation/realisation developers add a smokey haze/atmosphere to locations like art galleries which of course wouldn’t have them. As a film lighting practitioner I can vouch for how much atmosphere the Americans like to add, even for realist drama.
As the light we see is only reflected light, then how do you sell a sharp beam spotlight in its normal use? You fake it of course!