[ODE] visibility detemination?

[gl]

> Do be aware, though, that if you're going to cull drawing primitives
> based on the geometries that represent them then those primitives
> should lay wholly within their geometries, otherwise it would
> not be correct to assume that if the geometry does not collide
> with the viewing frustum then the primitives may be culled away.

The idea would be to test ODE's maintained AABB's against the frust()um...
you're right, testing actual collision primitives would fail in almost all
cases.
--
gl