VMD-L Mailing List

From: daniel aguayo (bioquimico_at_gmail.com)
Date: Tue Oct 27 2009 - 14:14:55 CDT

Tks Axel and John
I will try this.

my bests

Daniel Aguayo V.

On Tue, Oct 27, 2009 at 2:05 PM, John Stone <johns_at_ks.uiuc.edu> wrote:

>
> Hi,
> Actually you can put an image in the background in Tachyon, but to do this
> you must use a texture map applied to an object, e.g. an infinite plane.
> You could either write the necessary scene objects by hand, or you could
> draw a quadrilateral within VMD, and add the texture to it by hand or
> by script later on.
>
> Here's a trivial texture example cut from the "room.dat" example scene
> included with Tachyon:
>
> One of the wall pictures:
> texdef islandpic
> ambient 0.9 diffuse 0.0 specular 0.0 opacity 1.0
> color 1.0 0.6 0.4
> texfunc 9 imaps/islandpic.tga
> center -16.0 11.0 24.5
> rotate 0.0 0.0 0.0
> scale 0.071 0.071 0.1
> uaxis 1.0 0.0 0.0
> vaxis 0.0 1.0 0.0
>
> box
> min -16.0 11.0 24.5
> max -2.0 25.0 25.0
> islandpic
>
> The ceiling texture:
> texdef ceiling
> ambient 0.4 diffuse 0.8 specular 0.0 opacity 1.0
> color 1.0 1.0 1.0
> texfunc 9 imaps/whtceil.ppm
> center 0.0 0.0 0.0
> rotate 0.0 0.0 0.0
> scale 0.1 0.1 0.1
> uaxis 1.0 0.0 0.0
> vaxis 0.0 0.0 1.0
>
> plane
> center 0.0 30.0 0.0
> normal 0.0 -1.0 0.0
> ceiling
>
> Try playing around with that and let me know if you need help.
>
> I would be willing to add an easy-to-use "background image" feature
> to Tachyon if enough people would find it useful.
>
> Cheers,
> John
>
> On Tue, Oct 27, 2009 at 12:23:48PM -0400, Axel Kohlmeyer wrote:
> > On Tue, Oct 27, 2009 at 11:27 AM, daniel aguayo <bioquimico_at_gmail.com>
> wrote:
> > > Dear All
> > > I want to render my protein with a customized background
> > > Can we use a image file as background in Tachyon?
> > > I know I can do that with Pov-ray.. but I'm using tachyon to
> > > render it.
> >
> > no, but it is easy to use a "green screen" trick. i.e. you put a color
> > in the background that is not used in your visualization, render and
> > then cut away this color in programs like gimp or photoshop and
> > then add your background to it.
> >
> > cheers,
> > axel.
> > >
> > > Tks for all
> > >
> > > Daniel Aguayo V.
> > >
> > >
> > >
> > > --
> > > saludos desde el fin del mundo
> > >
> >
> >
> >
> > --
> > Dr. Axel Kohlmeyer akohlmey_at_gmail.com
> > Institute for Computational Molecular Science
> > College of Science and Technology
> > Temple University, Philadelphia PA, USA.
>
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> WWW: http://www.ks.uiuc.edu/~johns/ <http://www.ks.uiuc.edu/%7Ejohns/>
> Fax: 217-244-6078
> 

-- 
saludos desde el fin del mundo