Hey guys, has you guys know already, iām working on a Indi GTA, and i want the textures of my building change over time, for example:
Change from daytime texture to night time texture. I tried with spotlights on my buildings windows, but obviously my framerate droped dramaticly from 120 to 8 fps 
so an obvious solution could be change the texture of the buildings when is night time, so these one can have its windows lighted, in textures of course 
Is this possible?
Well you can use 2 separate materials for each building, 1 for the actual building, and 1 for the window. Then you can make a dynamic material out of the window texture and turn it to yellow over time.