Unless they invent some kind of new force of physics all you can do here is reflect ambient light.

The only pattern/material that comes close to what OP is looking for would be a parabolic mirror. If you attach one of these to your shirts and then stand at the exact right angle and distance to a camera, you could damage it. And it pretty much only works when the sun is out.

However that is already stretching “passive” because it would require a lot of deliberate actions to position yourself that way.

A even worse option could maybe wearing a shirt made from a radioactive material. (but is it still passive when you’re using something radioactive?). And of course this wouldn’t just damage the camera but also very much the camera man … and the wearer.