picking particles

In my piece of software I have a lot of particles generators. They generate columns of particles, and I want to be able to pick a column. I created a collisiontube around my column of particles but I’m know in front of one problem : since all other collision detection are done directly on the models (and not on collision solid) is it possible to evolve the picker class so that it works with both collision solids and models ?

But this may be a bad idea. How would you do collision with particles ?

The answer is very simple:


Sorry to have bothered you with that.