Question Transparent walls

[Kanolais]

I have seen in some scenes that the walls are solid on the inside and transparent on the outside (reference images attached).
Question: Was this done by the creator of the scene in another program, or can the same be applied to the walls of other scenes?

 

[Origin69]

I think this happens with custom unity asset meshes that have backface culling enabled. I don't know if there is anyway to do this after the cua is made.

 

[Kanolais]

I think this happens with custom unity asset meshes that have backface culling enabled. I don't know if there is anyway to do this after the cua is made.

It would be great if it could be modified in VAM. There are scenes with very small rooms that if you move one centimeter away you leave the room hehe