[Fwd: Re: camera back and forth]

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From: Allan Schaffer (allan++at++sgi.com)
Date: 03/18/2002 15:30:30


Forwarding; this was caught by the SPAM filters -- don't forget to
disable HTML when posting to info-performer. In many mail programs this
can be done automatically.

Allan

-------- Original Message --------
Subject: Re: camera back and forth
Date: Mon, 18 Mar 2002 10:40:09 -0600
From: Ken Schwarz <kschwarz++at++sgi.com>
Organization: SGI
To: will wey <will_wey++at++hotmail.com>
CC: info-performer++at++sgi.com
References: <F93LfzjPK7aonE8kuma0000202b++at++hotmail.com>

Hey Will,

Start with /usr/share/Performer/src/pguide/libpf/C++/simple.C. The
camera's position is set in lines
156-160:

  view.hpr.set(45.0f*t, -10.0f, 0);
  view.xyz.set(2.0f * bsphere.radius * s,
        -2.0f * bsphere.radius *c,
        0.5f * bsphere.radius);
  chan->setView(view.xyz, view.hpr);

Take the XInput routines out of
/usr/share/Performer/src/pguide/libpf/C++/complex.C *or* just start with
complex.C
and pare it down to make it a little easier to understand.

Best,

Ken

will wey wrote:

     I?m trying to create an application that moves the camera back and
     forth in
     a scene using the keyboard - I cannot find a simple example of this
     kind of
     thing, some examples of immensely complicated and would take me
     years to
     work out what?s happening - can anyone point me in the direction
     where I can
     find a well written simple program that shows me how to do this one
     simple
     thing?

     Thanks

     will

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  ..    Ken Schwarz  Technical Consultant SGI Dallas  kschwarz++at++sgi.com ..
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-- Allan Schaffer allan++at++sgi.com Core Rendering 1-650-933-2160 Silicon Graphics http://www.sgi.com


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