From: Robert Johnson (robertjo_at_physics.upenn.edu)
Date: Tue May 29 2012 - 16:11:59 CDT

Actually, I figured out the issue. The problem was that far clipping was
removing part of the scene from my VMD window. However, this was not being
clipped when I rendered it with Tachyon. So that's why the two views didn't
look the same.
Thanks,
Bob

On Tue, May 29, 2012 at 5:08 PM, John Stone <johns_at_ks.uiuc.edu> wrote:

>
> Bob,
> Did you get any warning messages in the VMD text console during either
> the QuickSurf calculations or when rendering the Tachyon scene?
> Can you send me both the OpenGL rendering and Tachyon rendering of the
> same scene? It would help me immensely to actually see what you're
> describing. Seeing the images will save me asking you a few tens of
> detailed questions...
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Tue, May 29, 2012 at 03:11:52PM -0400, Robert Johnson wrote:
> > Hello Everyone,
> > I have a system in VMD that contains a large quartz substrate. The
> > substrate is about 30nm x 30nm in the xy-plane. I'm using Quick Surf
> to
> > draw this substrate. However, in order to fit the entire surface in
> > memory, I had to define a smaller region of the substrate. Now I'm
> trying
> > to render an image using Tachyon. However, the region of the substrate
> > that is in the background of the image is getting cut off. It seems
> that
> > this portion of the surface is not being included in the Tachyon input
> > file at all. I even tried creating a selection that *only* contained
> the
> > background portion of the substrate and again it was not rendered by
> > Tachyon. Is there something that defines these cutoff distances in
> Tachyon
> > and/or VMD?
> > Thanks,
> > Bob
> >
> > --
> > Bob Johnson, PhD
> > Lab Coordinator & Lecturer
> > Department of Physics and Astronomy
> > University of Pennsylvania
> > 209 S. 33rd St.
> > Philadelphia, PA 19104
> > Office: David Rittenhouse Laboratory 2C11
> > Phone: 215-898-5111
> > http://www.physics.upenn.edu/~robertjo
>
> --
> 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
>

-- 
Bob Johnson, PhD
Lab Coordinator & Lecturer
Department of Physics and Astronomy
University of Pennsylvania
209 S. 33rd St.
Philadelphia, PA 19104
Office: David Rittenhouse Laboratory 2C11
Phone: 215-898-5111
http://www.physics.upenn.edu/~robertjo