VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Wed Jan 21 2015 - 09:28:34 CST

Norman,
  Yes, the mirror material property will only have an effect when the
scene is processed by ray tracing engines like Tachyon. At present, it
is only implemented for Tachyon and the GPU-accelerated TachyonL-OptiX
built-into VMD, but for the next release, I expect to have time to extend
the implementation to POV-Ray and several other renderers as well.
You may find it particularly interesting to display it interactively
using the built-in GPU Tachyon ray tracer. By viewing it interactively,
you can get the reflections and orientations just right.

Cheers,
  John Stone

On Wed, Jan 21, 2015 at 10:42:46AM +0100, Norman Geist wrote:
> Already found it as a property of materials. But it is only showing effect
> in a render context right?
>
> Norman Geist.
>
>
> > -----Ursprüngliche Nachricht-----
> > Von: owner-vmd-l_at_ks.uiuc.edu [mailto:owner-vmd-l_at_ks.uiuc.edu] Im
> > Auftrag von Norman Geist
> > Gesendet: Mittwoch, 21. Januar 2015 09:20
> > An: 'John Stone'
> > Cc: VMD Mailing List
> > Betreff: AW: vmd-l: The quality of movie made by VMD
> >
> > Away from the topic but related to John's post, how is the feature of
> > mirror
> > reflections actually accessible? Is it included in the final vmd-1.9.2?
> >
> > Norman Geist.
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: John Stone [mailto:johns_at_ks.uiuc.edu]
> > > Gesendet: Dienstag, 20. Januar 2015 20:33
> > > An: Norman Geist
> > > Cc: 'sunyeping'; VMD Mailing List
> > > Betreff: Re: vmd-l: The quality of movie made by VMD
> > >
> > > Hi,
> > > I would add in addition to what others have already suggested,
> > > that those people using Linux with NVIDIA cards would want to try
> > > the new GPU-accelerated "light" version of the Tachyon ray tracing
> > > engine built into VMD 1.9.2. It can end up being as much as 6x
> > faster
> > > than the full-featured CPU version of Tachyon when run on CPUs and
> > GPUs
> > > of a comparable technology generation and price point. The new
> > version
> > > of VMD also adds support for depth-of-field focal blur and mirror
> > > reflections which aren't found in the prior revs of VMD. At present
> > > the GPU ray tracing engine is only found on the 64-bit Linux version
> > of
> > > VMD, but I expect it to be enabled on Windows next, and hopefully on
> > > MacOS at some point as well.
> > >
> > > Cheers,
> > > John Stone
> > > vmd_at_ks.uiuc.edu
> > >
> > > On Mon, Jan 19, 2015 at 09:41:23AM +0100, Norman Geist wrote:
> > > > Hey,
> > > >
> > > >
> > > >
> > > > this is related to the default options VMD passes to the program
> > > which
> > > > actually links all the pictures made by VMD to a video file at
> > > last. You
> > > > can disable the option to "delete image files" under "movie
> > > settings" in
> > > > the movie maker window and use ffmpeg or ppmtompeg later
> > manually,
> > > using
> > > > higher quality settings. You will usually find all the pictures
> > in
> > > /tmp.
> > > >
> > > >
> > > >
> > > > You might also be interested in
> > > >
> > >
> > [1]http://www.ks.uiuc.edu/Research/vmd/script_library/scripts/userani/
> > > for
> > > > easy animations in movies.
> > > >
> > > >
> > > >
> > > > Also the best renderer is actually Tachyon. Optionally by
> > enabling
> > > > "ambient occlusion" and "shadows" under VMD
> > > > Main->Display->DisplaySettings, but this makes it way slower.
> > > >
> > > >
> > > >
> > > > Norman Geist.
> > > >
> > > >
> > > >
> > > > Von: owner-vmd-l_at_ks.uiuc.edu [mailto:owner-vmd-l_at_ks.uiuc.edu] Im
> > > Auftrag
> > > > von sunyeping
> > > > Gesendet: Montag, 19. Januar 2015 04:46
> > > > An: vmd-l
> > > > Betreff: vmd-l: The quality of movie made by VMD
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Dear VMD users,
> > > >
> > > >
> > > >
> > > > I am preparing movie from my MD simulation trajectory using the
> > > movie
> > > > maker plugin of VMD. But I find the quality of the movie I made
> > is
> > > > unsatisfying when comparing with those published. For example,
> > the
> > > movie
> > > > published by DE Shaw
> > > > (https://www.dropbox.com/s/e9grvp8f9mnkopx/movie_Shaw.mov?dl=0)
> > > has a
> > > > higher solution than mine
> > > > (https://www.dropbox.com/s/2qi0tgm6oag4lox/movie_Sun.mp4?dl=0).
> > I
> > > have the
> > > > following question:
> > > >
> > > >
> > > >
> > > > (1) I made my movie as mpg format with VMD and then save it as
> > mp4
> > > format
> > > > with VideoMach. Was Shaw's movie also made by VMD and and
> > > VideoMach? Or
> > > > was it made by other software?
> > > >
> > > > (2) What is the representation of the structure in Shaw's movie?
> > I
> > > guess
> > > > it is Cartoon/New Cartoon in VMD. But when applying Cartoon/New
> > > Cartoon
> > > > representation in my structure, it doesn't look as beautiful as
> > > Shaw's.
> > > >
> > > > (3) I use POV-Ray render in VMD which generate images with the
> > > higher
> > > > solution than any other reder setting. But the solution is still
> > > lower
> > > > compared with Shaw's movie. How was Shaw's movie rendered?
> > > >
> > > >
> > > >
> > > > Thanks in advance.
> > > >
> > > > Yeping Sun
> > > >
> > > > Institute of Microbiology, Chinese Academy of Sciences
> > > >
> > > >
> > > >
> > > > References
> > > >
> > > > Visible links
> > > > 1.
> > > http://www.ks.uiuc.edu/Research/vmd/script_library/scripts/userani/
> > >
> > > --
> > > 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/
>
> 

-- 
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/