A Newbee Bounding Volume question

Hello JMonkeyWorld !!!

I want my car to lay on my circuit, my problem is that when I erase the two lines:

        dCircuit.setModelBound(new BoundingBox());


from my BuildCircuit() code my car pass trough the circuit. It's ok with myCar/myTerrain.

My Circuit is a single 3D object curved like _/ and a BoundingBox is not the solution. I readed about TriMesh. How can I proceed ?

private void buildCircuit() {

    Circuit = loadModel("data/circuit/myfirstcircuit.jme");


    Quaternion q2 = new Quaternion();

    q2.fromAngleAxis(FastMath.PI*1.5f, new Vector3f(1,0,0));




    Circuit.getLocalTranslation().set( new Vector3f (190,257,150) );


        dCircuit = getPhysicsSpace().createStaticNode();


        dCircuit.attachChild( Circuit );


        scene.attachChild( dCircuit );


        dCircuit.setModelBound(new BoundingBox());




        scene.updateGeometricState(0, true);



Thanks in advance !!!

I've read this 4 times now still don't understand what you mean.

Maybe you can clarify to the slow of us somehow ?

If I understood you well, you want to use triangle-accuracy collitions for your track branch of the scenery.

This is achieved changing:


for this:


I have had some problems with this, though. I

Thanks for your replies !

dCircuit.generatePhysicsGeometry(true) works fine!

See you !