On Fri, 30 Aug 2002 10:10:24 +0200, "Niki Estner" <nik### [at] freenetde>
wrote:
> This question may be dumb, but why does a sphere need a bounding box? It
> isn't used during rendering, is it?

Bounding boxes usually are not used in theirs parent objects. They are for
vista buffer for example.

> Also, why does an ellipsoid need a center and a readius? The light ray must
> be transformed into "sphere space"
> anyway, couldn't center and radius be done right with that, too
> (scale+translate of unity sphere)?

It would be much slower.

> If I say all my spheres share one
> texture, couldn't I save some of the pointers for texture, interior,...?

IIRC it is done similiar way, but I can be wrong

> All this doesn't make nice code, and it's no fun doing it anyway, so if
> anyone got any better ideas for me, please tell me so.

Buy RAM ? :-)

ABX

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