Culling at the primitive level

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GRAUX Ludovic (LUDOVIC.GRAUX++at++siege.aerospatiale.fr)
Fri, 24 May 1996 18:26:42 +0200

      Dear pfMasters,

     I am wondering if it is possible to cull at the PRIM precision,
     i mean, not to send to the DRAW process the triangles which are
     outside the Viewing Frustrum.
     Indeed, the CullMode options are PFCULL_GSET, PFCULL_VIEZ, etc.
     but nothing resemble to PFCULL_PRIM.

     didn'nt I look well enough, or is there a reason why me cannot cull
     the triangles. ?

     My problem is that I am representing the Earth as a spheric geoset, and when
     i get closer to the Earth, I would like the triangles which are outside the
     viewing frustum not to be sent to the DRAW process, which take far too much
     time.

     thanks,
     Mike
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