Callback for any collision

I have a ragdoll I am working with and need to have a report if anything hits it, specifically raycast to start with. I was that in the wrapper we need to specify which bodies will collide with other bodies that have a custom callback is that correct?

mBodyA = makeBox(Vec3(0,3,0));
mBodyA->setContactCallback(this);

mBodyB = makeBox(Vec3(0,7,0));
mBodyB->setContactCallback(this);

mScene->setActorFlags(mBodyA, mBodyB, NxOgre::Enums::ContactPairFlags_All);



Is there a way to create a custom callback and have it be called if anything collides with it? Example, I create a raycast with 50 ragdolls in the scene, how do I create a callback that will handle any raycast hitting any actor in any ragdoll per frame?

Thanks.

I think you can do it with Actor or Shape groups.

I thought groups where used to filter results. I don't understand how I can use groups to help with this problem, can you be more specific?

Thanks.

There is Group v.s. Group collision callbacks.

If you want your object to report collisions with anything, there are two possible ways;

- Manually create events with all objects in the scene (and future ones) in a big loop.
- Place your actor in one group, and the objects in different groups, then use group v.s. group collisions to simplify it. (in a smaller loop).

Makes sense, and this is done by setting the "actor group"?

Yes; or shape groups. Which may be better for you - or not.

It's all in the PhysX documentation chm, and all the classes and method names are exactly the same in NxOgre (minus the Nx prefix).