pfMakePerspFrust()

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Hiro Mitsui (mitsui++at++emm.rd.tepco.co.jp)
Wed, 05 Apr 1995 10:32:57 +0900

Hello,

I'd like to use off-axis projection in my Performer 1.2 application.
But I can't get an expected FOV.

The result of the following codes is,
        ll[0] != left
        ur[0] != right
        ll[2] != bottom
        ur[2] != top
while all of them should be equations according to the manual.

----
pfChannel *chan;
pfVec3f ll,lr,ul,ur;

chan = pfNewChan();
pfChanAutoAspect(chan,PFFRUST_CALC_NONE);
pfMakePerspFrust(chan,left,right,bottom,top);
pfChanNearFar(chan,0.1f,1000.f);

pfGetFrustNear(chan,ll,lr,ul,ur);

----

Can anybody explain this problem?
Thanks in advance.

-Hiro Mitsui
 mitsui++at++rd.tepco.co.jp

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