I have a problem with vanishing spheres… I am displaying a large sphere (using gluSphere - radius is 13000, for what it’s worth) and moving the sphere away from the viewpoint. My z clipping plane is large (250000000.0). However, the sphere vanishes long before I’d expect it to. I’ve tried moving the z clipping plane further away, but the same thing happens.
Is this a case of the polygons becoming too small to draw? Or am I doing something silly? Would I, perhaps, be better off using a NURBS for this?
I’m using Mesa under Linux.