VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon Apr 23 2012 - 15:40:19 CDT

Flavio,
  It is unclear to me what you mean by "Zalman" stereo?
VMD supports all of the major stereo formats I know of already, so
unless Zalman is something completely new, I suspect it is a form of
one of the existing modes that VMD already supports. The Zalman displays
I'm aware of use either side-by-side or quad-buffered modes already
supported by VMD. If you know of a particular display type that does not
work with VMD, tell me the details about it and I will be happy to look into
whether it is supported or not, and/or whether it is feasible to implement.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Sat, Apr 21, 2012 at 11:36:01AM -0700, flavio seixas wrote:
>
> 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
> > 

-- 
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