Re: CULLING at the PRIM level ?

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Herve Maurel (maurel++at++BAROCO.matra-espace.fr)
Mon, 10 Jun 96 09:20:34 +0200

Ludovic,

I agree with you to try to implement a post-cull callback to cull the back faces
of the sphere. Just dealing with the normal of the triangles and your line of sight, you can cull half of the triangles. You cull the hidden face of the Earth

May be you can improve the culling, testing the product between the normal
 of the face and the line of sight with a certain value.. (like a cosine) and you can get your "calotte"...

                Herve

____________________________________________________
Herve MAUREL - Europe Informatique Toulouse - FRANCE
under contract with MATRA MARCONI SPACE
phone: +33 62247521 - email: maurel++at++baroco.matra-espace.fr

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