More Intersection Questions....

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Angus Henderson (angus++at++death.reading.sgi.com)
Mon, 7 Feb 94 11:00:44 GMT

I am relayin the question from DRA Farnborough in the UK, they own more
ONYX's than the rest of the universe but they have no e-mail.

The application is line of sight & occulting calculations, if a
pfSegsIsectNode is used on a vector between two moving objects
they want to test for terrain intersections. It works but there
are many intersections being returned and they only need to wait
for the first terrain intersection so they are looking to improve
performance.

They specify a discriminator callback which prints a message that
it has been called and returns PFTRAV_TERM.

However the callback is invoked multiple times for each intersection
instead of just once.

Is this a bug or a mis-understanding of the man page ?

ANGUS HENDERSON

"Imagine your witty quote here"

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