Re: certainly already asked

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Allan Schaffer (aschaffe)
Tue, 18 Jun 1996 14:07:41 -0700

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I'm a bit behind on my info-performer reading but...

> > > Does anybody have, or does this exist in Performer, a function that
> > > computes from 3D coordinates to 2D screen coords ?

In addition to what's been said already, here's a superlightweight
IRIS GL method:

[within the draw callback; also note that Performer coords
have been rotated so that Z is up]

cmov(x,y,z);
getcpos(&sx, &sy);

Allan

-- 
Allan Schaffer                                             aschaffe++at++sgi.com
Silicon Graphics                            http://reality.sgi.com/aschaffe
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