collision with various nodes

[chwc]

i want to make a collision between ~50 lowpoly nodes, and the camera.
the nodes are static and theres no movement.
what i dont understand is how to agroup the 50 nodes, create the octtree, and add it to the camera

[Acki]

there are some solutions:
1st use a physics engine (e.g. Newton)
2nd use a meta triangle selector
3rd batch all meshes to one single mesh (use the BatchingMesh, also included to my irrExtensions) and use a normal triangle selector