VMD-L Mailing List
From: Axel Kohlmeyer (akohlmey_at_gmail.com)
Date: Sun Feb 05 2012 - 11:07:34 CST
- Next message: Cosseddu, Salvatore: "RE: The spheres become oval, getting close to the screen borders"
- Previous message: John Stone: "Re: The spheres become oval, getting close to the screen borders"
- In reply to: Cosseddu, Salvatore: "The spheres become oval, getting close to the screen borders"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
On Sun, Feb 5, 2012 at 10:53 AM, Cosseddu, Salvatore
<S.M.Cosseddu_at_warwick.ac.uk> wrote:
>
> Dear All,
>
> As a consequence of the perspective view, the spheres (i.g. ions) that lies
> on the borders of the OpenGL display assume a oval shape.
>
> I can not find a way to avoid this problem, even because the shape is
> maintained once rendered (tachyonInternal, Pov-ray)
sorry, but i don't understand the question.
you cannot have perspective project *and*
perfect spheres. the distortion is part of
the projection. so where is the problem?
if you want to have perfect spheres, you
have to switch to orthographic projection.
that will maintain shapes.
cheers,
axel.
>
> Regards
> Salvatore
>
> --
> Salvatore Cosseddu
> PhD student
>
> Centre for Scientific Computing and School of Engineering
> University of Warwick
> Coventry CV4 7AL
> United Kingdom
>
> email: S.M.Cosseddu_at_warwick.ac.uk
>
>
-- Dr. Axel Kohlmeyer akohlmey_at_gmail.com http://goo.gl/1wk0 College of Science and Technology Temple University, Philadelphia PA, USA.
- Next message: Cosseddu, Salvatore: "RE: The spheres become oval, getting close to the screen borders"
- Previous message: John Stone: "Re: The spheres become oval, getting close to the screen borders"
- In reply to: Cosseddu, Salvatore: "The spheres become oval, getting close to the screen borders"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]