Irrlicht Engine

So i've loaded a model, but i need to give Bullet a shape for collisions. What is the easiest way i can do this? Besides creating a box or an oval around my model?
Any Bullet experienced people or any demos or tutorials that I can use?

I have looked into the btBvhTriangleMeshShape function, but not sure how i'm going to use it around a specific model.

Any help greatly appreciated.

I would load the model in Blender and create a convex mesh around the model. The mesh, which should be simpler than the model, is used for bullet stimulation.

Regards,
smso

You have many examples of this, just read how one of the many bullet wrappers do it.

Thanks got many leads to look into now.

Okay so i've created the model and want to know how i can load this .bullet file with irrlicht.
I have a .3ds model and corresponding .bullet