Isn't PARALLEL projection the same as the
Orthographic projection model in OpenGL?
If it is, then is it possible that
everything is still working, but you just can't tell because nothing is changing
size visually?
From the OpenGL red book:
Orthographic Projection
With an orthographic projection, the viewing volume is a rectangular
parallelepiped, or more informally, a box. Unlike perspective projection,
the size of the viewing volume doesn't change from one end to the other, so
distance from the camera doesn't affect how large an object appears. This
toe of projection is used for applications such as creating architectural
blueprints and computer-aided design, where it's crucial to maintain the actual
sizes of objects and angles between them as they're projected.
----- Original Message -----
From: "Mona Wong" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, May 11, 2001 12:54
PM
Subject: Re: [JAVA3D]
View.setProjectionPolicy
>
> I have the same problem as you. If you get anything useful, please
> forward. Thanks!
>
> Cheers,
>
> Mona
>
> > Hi,
> >
> > I am currently using the PERSPECTIVE projection for my view and this allows
> > me to use the MouseZoom behaviour to zoom in and out.
> >
> > I also want to use the PARALLEL projection. When I switch to this, I find
> > that my model is right in my face in the view and the MouseZoom does not
> > operate in this policy.
> >
> > How can I set the model backwards so I can see it all? Do I have to use a
> > setScale?
> >
> > Cheers,
> >
> > Allistair Crossley
> > Web/New Media Consultant
> > Logica UK Ltd
> > Tel: 02074 463267
> > Mob: 07884 056274
> >
> > ===========================================================================
> > To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> > of the message "signoff JAVA3D-INTEREST". For general help, send email to
> > [EMAIL PROTECTED] and include in the body of the message "help".
>
> ==================================================================
> Mona Wong
> National Center for Microscopy and Imaging Research
> University of California, San Diego
> http://ncmir.ucsd.edu/
>
> "The truth shall set you free, but first it will piss you off"
> A Landmark instructor
> ==================================================================
>
> ===========================================================================
> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> of the message "signoff JAVA3D-INTEREST". For general help, send email to
> [EMAIL PROTECTED] and include in the body of the message "help".
