[ODE] How to disable collision between geometry box (movable) and other unmovable geometry?

[Micheál O'Brien]

In your near callback function you need to check if one of the 
bodies is a box and the other is the unmovable geometry and 
then simply don't create the contact joints between them. 
 
To check if one of the bodies is a box you can use the  
dGeomGetClass(dGeomID) function in the near callback. 
Unmovable geometry can be checked for easily if it has a body 
ID of zero. 
 
Micheál O'Brien 
 
> Hi, 
>  
> How can I disable collision between geometry box class (movable) and 
> other unmovable geometry? 
>   
>  
> Thanks in advance, 
>  
>  Sergei                          mailto:sergey_eu@cea.ru 
>