Changing Materials between Precomputed lighting scenarios

Hi all,

Working on a scene where I have a day and night scenario.
My persistent level has all of my geometry, my day map has my day skysphere,skylight, directional light and my night scenario will have it’s own skylight, directional and skysphere with stars. Scenarios will be toggles with a key press.
I have several meshes that have backlighting on signage that turns on in the night scenario and I am wondering the best way to acheive this.

A typical mesh is a wall with signage as a different material channel so the idea is during the day it is just an opaque white but at night time it turns to a different material which is emissive.
One thought I had was to duplicate the object and have one day and one night object with different materials but I don’t know if that is the best way.

Thanks in advance for any help.

You could use Global parameter collection to drive that emissivity.

That’s an interesting idea, I am not too familiar with global parameter collections but the documentation on it seems thorough. I will try that out thanks.