thanks for the kind words.
@galinette: yes, deformed glass and also double glazing is intended to make it as real as possible

unfortunately it costs a lot of of rendertime. I simply used an ISL noise in bump channel, as i instanced all the glasses they all have the same deformation, but i would have liked to see different bump on the glazing.
Further I'm stuck in a problem that would require to stack two materials of different mapping.
Afaik this is not yet possible with cindigo.
So I think I'll concentrate on more detailing the modeling on some points, until i can progress with materials
Anyone was able to recognize the building I'm trying to show here?
best regards