VMD-L Mailing List

From: flavio seixas (oivalf_nix_at_yahoo.com)
Date: Sat Apr 21 2012 - 13:36:01 CDT

Hi.

What abou Zalman Stereo? It would be possible to implement it in future versions of vmd?

This kind of stereo is much more friendly to user eyes and is being used in different kinds of visualization software like Coot and CCP4mg.

Regards,

Flavio

--- On Fri, 4/20/12, John Stone <johns_at_ks.uiuc.edu> wrote:

> From: John Stone <johns_at_ks.uiuc.edu>
> Subject: Re: vmd-l: Anaglyph stereo with other colors
> To: "Luis M. Sánchez" <lmsp_at_uniovi.es>
> Cc: "VMD-L" <vmd-l_at_ks.uiuc.edu>
> Date: Friday, April 20, 2012, 11:27 PM
>
> Hi,
>   It is certainly possible to implement anaglyph for
> many other
> other color combinations.  The only issue is that once
> you get
> away from the classic red/cyan glasses, the number of
> possible
> color combinations gets pretty large.  The only other
> issue is that
> VMD currently uses the OpenGL color channel mask feature to
> implement
> the anaglyph color scheme, and to do color combinations that
> are not
> composed of combinations of 0% or 100% contributions from
> each of
> red, green, and blue will require a different rendering
> approach, which
> means that it will incur much more development time than you
> might expect.
>
> In the end, I think anaglyph is best thought of as the
> stereo option
> of last resort when nothing else is
> available/feasible.  I would rather
> invest time improving the non-anaglyph stereo modes in VMD
> than to put
> a bunch of time and energy into improving the lowest quality
> option.
> That said, if enough people tell me they want improved
> anaglyph stereo,
> I would be happy to work on it.
>
> Cheers,
>   John Stone
>   vmd_at_ks.uiuc.edu
>
> On Fri, Apr 20, 2012 at 03:09:19PM +0200, Luis M. Sánchez
> wrote:
> > Hi,
> > Red-cyan and red-blue anaglyphs are affected by the
> chromatic aberration 
> > of our eyes. If I use VMD's anaglyph stereo and close
> one of my eyes, the 
> > red image is blurrier than the other one. Also, most of
> the red color is 
> > lost.
> >
> > Nowadays there are better color combinations for
> anaglyphs: 
> > http://en.wikipedia.org/wiki/Anaglyph_3D
> . Suitable glasses are also 
> > available from Amazon and other companies.
> >
> > Is there an option to change the colors used by VMD's
> anaglyp stereo? If 
> > not, maybe we could have a magenta-cyan anaglyph option
> in the future?
> >
> > Thanks for a great program and best regards
> >
> > --
> > Luis M. Sánchez
> > IUOPA
> > Edificio Severo Ochoa
> > Campus del Cristo
> > 33006 Oviedo
> > Teléfono: 985 10 9620
>
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL
> 61801
> http://www.ks.uiuc.edu/~johns/     
>      Phone: 217-244-3349
> http://www.ks.uiuc.edu/Research/vmd/   
>    Fax: 217-244-6078
>