Visible triangles in a scene

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Anoop M N (anoop++at++cair.res.in)
Wed, 6 Jan 1999 17:05:24 -0500 (Etc/GMT)

Hi,
        I want to know whether there is an easy way
(or a way at all) to find which all triangles are visible
(at least partialy) in a scene, given a model, viewpoint and direction.
There are of course methods to intersect line segments of different
lengths for each pixel, check the closest point, find the corresponding
triangle etc. That seems to take too long to compute for each view.
I want to know if there are any faster ways taking advantage of
some Performer feature or other ...

Thanks in advance!

Anoop.

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