Hi everyone

I'm making a first-person-shooter game and in all first-person-shooters you need a weapon hanging around like a panel on the screen. The easyest way to show this weapon is to make a runtime created entity. The problem is: There are no lightning effects on such an entity. Tell me one modern shooter with no lightning-effects on the weapon.
So: Is there a way to add a bit of lightning or brightness effects to a runtime created entity through shader materials?

Please help. I can't sell a game without those effects.

greetings
RcSepp