Thanks for the suggestions, everyone. My "shield" attempt failed miserably, so it's looking like my only options are to live with the light or fake its absence in postwork.

BagginsBill, that is extremely close to what I want to do! The only difference is that I want a light to affect everything but one object. Unfortunately, this is a pretty big scene with lots of materials so I think it will be easier to postwork the lighting than it will be to implement a shader on every other material the light needs to hit :sad: Thank you for the link, though. I will bookmark it, because I'm sure I'll need it sometime in the future.

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