Trail Renderer Damage

Is there some way to set up a damage function if an object hits a trail renderer?

I'll toss out a quick answer and say yes. You need a way to determine where the points are that the trail renderer is drawing between, then do a ray cast along the same points and have a script that causes damage to anything touched by the raycast.

We do something similar but use a line renderer instead.

that thing will work thanks

yeah this will work