i have some questions about GG max & classic !
How can i make everything look like wet, for an exterior if i add rain ?
It is possible to make a light flashing randomly for example interior lamp ?
how can i achieve this volumetric fog effect ?

Of course max becoming better, i think i need to experiment that on gg max !

For the wet effect just increase the specular of the entity

Duchenkuke made some cool stuff with wet roads and puddles in his side project.

Basically what you need to do is add the proper PBR map, namely glossness and metalness to achieve this effect.
The correct material index needs to bet set in the .fpe file. The material indexes are:





Yes, via shader effect on the entity itself and then scripting a dynamic light to have the same rythm. You will have to program this manually as I don't think there is a ready made pack to purchase. I have however seen games with this feature.



Either use the particle system or make an animated model that simulates a particle effect. (similar to some mobile games made in UE4)