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[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

> FYI:
>
> bool isReal() const {return (bool)interactionGeometry&&  (bool)interactionPhysics;}
>
>    
Yes, yes. I read the code a little before asking questions, you know... ;-)

The sure thing is I get nan's normals for nonFresh interactions. Still 
searching the reason.

Bruno