RE : [Nel] Collision pb:

[Stéphane CHAPLAIN]

> Eventually, the exterior collision mesh may be separated in multiple meshes 
> (all in the same IG), but 
> make sure that all doors (on interior and exterior meshes) have the same 
> vertices...

Thanks for your answer.

To have multiple meshes in my exterior collision mesh is exactly what I want. I 
have two part in this collision mesh. The two meshes are "Exterior meshes". No 
Interior at this time. 
Just imagine : I have two houses on a zone and I want to make a street beetwen 
these houses.But I don't want to be able to enter in the houses. At this time, 
I can't walk in the street beetwen the houses because there is an edge that is 
created which joins the 2 meshes. When I export only one of them, it works fine.
I've tried to set the Instance group Name of the two meshes to the same value, 
or to attach the 2 meshes in one : nothing works. Do I have to set the material 
ID to 666 ? If I have no interior too?