VMD-L Mailing List

From: RABIUL ISLAM (rblam65_at_gmail.com)
Date: Fri Aug 03 2018 - 09:50:37 CDT

Thank you sir. I will try it and let you know.

On Fri, Aug 3, 2018 at 7:00 PM, John Stone <johns_at_ks.uiuc.edu> wrote:

> Peter,
> Try the test version of VMD 1.9.4 and let me know if you still
> observe the same phenomena.
>
> Best,
> John
>
> On Fri, Aug 03, 2018 at 11:17:28AM +0200, Peter Kroon wrote:
> > Hi John,
> >
> >
> > no worries, well deserved holidays (and conferences) get priority :)
> >
> > The TachyonInternal does handle DoF correctly (other than the inversion
> > of dof_fnumber). But the problem I have there is that I can't simply
> > tell it to make an image at a resolution of 3kx4k.
> >
> > Scene generation for Tachyon external does work (mostly), but the
> > external Tachyon seems to ignore the FocalLength parameter.
> >
> >
> > Which VMD test version are you referring to exactly? I'm running 1.9.3
> > at the moment.
> >
> >
> > Peter
> >
> >
> > On 02-08-18 18:58, John Stone wrote:
> > > Hi,
> > > Sorry for the slow response, I'm still digging out of a pile of
> emails
> > > that accumulated while I was away from the office for a few weeks.
> > > Did you try using the built-in version of Tachyon I ship with VMD
> itself?
> > >
> > > Tachyon always had DoF, but the parameterization has changed somewhat
> from
> > > the old versions to now, and the way VMD talks to Tachyon has changed
> also.
> > >
> > > I haven't made the bleeding edge version of the Tachyon code available
> yet
> > > because I've been revising its API to allow it to support interactive
> ray
> > > tracing for machines that lack GPUs, and that aren't supported by
> OSPRay.
> > >
> > > If you have a problem that crops up with the test VMD build (and its
> built-in
> > > version of Tachyon) on the web site, then let me know and I will
> address it.
> > > If TachyonInternal works but the external does not, that may be a scene
> > > file generation issue (two different code paths). In any case, it
> should
> > > be easy to resolve any loose ends that may arise here.
> > >
> > > Best,
> > > John
> > >
> > > On Wed, Aug 01, 2018 at 10:48:45AM +0200, Peter Kroon wrote:
> > >> Hi all!
> > >>
> > >> I sent this mail earlier, but I think it got buried in everyone's
> > >> holidays. Does anyone who's just come back from their well-earned
> > >> holidays and conferences have any insights?
> > >>
> > >>
> > >> Peter
> > >>
> > >>
> > >> On 09-07-18 16:36, Peter Kroon wrote:
> > >>> Hello world!
> > >>>
> > >>>
> > >>> I would like to turn a VMD scene into a pretty picture. I want this
> > >>> picture to be high resolution (~3315x4000px), and using AO and Depth
> of
> > >>> Field. I have tried the following, continually running into issues:
> > >>>
> > >>> 1) Use Tachyon-OptiX: I can't put the desired resolution. If I do, it
> > >>> fails immediately with a memory error. See also
> > >>> http://www.ks.uiuc.edu/Research/vmd/mailing_list/vmd-l/27940.html
> > >>>
> > >>> 2) Use Tachyon internal: Creates a super fuzzy picture, probably
> because
> > >>> the meaning of 'Aperture' changed from 'x' to '1/x'.
> > >>>
> > >>> 3) Use external Tachyon renderer: If I fix the 'Aperture'; and
> changing
> > >>> FocalDist to FocalLength I *almost* get the picture I want, but it
> seems
> > >>> the FocalLength option is simply ignored (see also
> > >>> http://www.ks.uiuc.edu/Research/vmd/mailing_list/vmd-l/15285.html).
> This
> > >>> happens with both 0.98.9 and 0.99b6.
> > >>>
> > >>> Does anyone have anything else I can try? I build all the software
> from
> > >>> source, in case it matters.
> > >>>
> > >>>
> > >>> Peter
> > >>>
> > >>
> > >
> > >
> >
> >
>
>
>
> --
> NIH Center 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/
>
> 

-- 
Thanks and Regards
Md Rabiul Islam
Junior Research Fellow
Prof. T Pradeep's Group
DST Unit of Nanoscience
Dept. of Chemistry
IIT Madras, Chennai-36
Ph:  9444629520