2006-09-05 11:33:06 UTC
It should be rendered, if its a composite object like an automobile, so that parts of it don't go missing
that depends again on how objects are represented, say u want to arrange an object as a combination of meshes.
Again rendering is an expensive process, zbuffer eliminates unnecessary rendering at a lower level(primitives)
but it would be nice to develop a visibility determination test to pass visible/part visible objects to the
renderer.
On the other hand world can be an object, and rendering the world need not mean rendering every object in it,
it should be decided bases on the visibility of contained objects formed by occlusion and cull faces.
