coordinate system confusion

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Christopher R Volpe (volpe++at++ash.crd.ge.com)
Wed, 09 Apr 1997 14:20:01 -0400


Hi Performers-

  The man page for pfLightSource gives the following piece of sample
code:

          /* Time of day is high noon */
          sun->setPos(0.0f, 1.0f, 0.0f, 0.0f);

Since the up direction is +Z (according to the Programmer's Guide page
95), shouldn't this code be as follows:

          /* Time of day is high noon */
          sun->setPos(0.0f, 0.0f, 1.0f, 0.0f);

Is this a documentation error or am I misinterpreting something?

thanks,
Chris

--

Chris Volpe Phone: (518) 387-7766 GE Corporate R&D Fax: (518) 387-6560 PO Box 8 Email: volpecr++at++crd.ge.com Schenectady, NY 12301 Web: http://www.crd.ge.com/~volpecr ======================================================================= List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/ Submissions: info-performer++at++sgi.com Admin. requests: info-performer-request++at++sgi.com


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