Intersection of viewing frustum and a plane

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Brian Furtaw (brian++at++sgi.com)
Mon, 16 Dec 1996 11:20:25 -0500

Could someone help?

I am trying to intersect a plane (point on the plane (0,0,0) planes, normal
vector of the plane (0,0,1)) with a pfFrustum, the current view frustum. Should
I maybe be trying to do this with a pfPolytope instead? Then I would only have
to intesect the six facets with my plane at the origin. The desired result
would be the plane trimmed to fit inside the frustum. This allows me to compute
the minmum amount of surface features. Does anyone know how to do this?

Brian

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Brian Furtaw  (brian++at++sgi.com)	
VisSim  Technical  Consultant
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Silver Spring, Maryland 20904	OpenGL/ImageVision/OpenInventor/Performer
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