how to directly specify the perspective matrix?

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From: William Sherman -Visualization (wsherman++at++ncsa.uiuc.edu)
Date: 12/14/2001 12:46:30

Performers,

I'm wondering if there is a way to directly specify a perspective
matrix. I have some code that creates a 4x4 perspective matrix
based on eye position, etc., and would like to use this in
Performer applications. The only thing I can really find is
the ability to set the frustum using pfChannel::makePersp(),
or pfMakePerspChan() in C.

I know I'll have to adjust for Performer's Z-up-ness, but I'm
hoping to otherwise use my existing code.

        Thanks,
        Bill

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/* Bill Sherman (wsherman++at++ncsa.uiuc.edu) */
/* National Center for Supercomputing Applications */
/* University of Illinois at Urbana-Champaign */
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