VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon Jun 04 2007 - 16:04:21 CDT

Hi,
  The VMD movie making plugin doesn't presently have any
sophisticated movie titling features, so this is probably best
done by making a title screen frame using tools like GIMP or
ImageMagick, and then assembling the movie frame sequence with
the title screen frame(s) and running your favorite movie compression
tool manually. The VMD movie making plugin will let you generate
just the image frames to help assist with this type of process if you
select the "Targa Frames" or "JPEG Frames" options in the "Format" menu.

Regarding the snapshots, I'm not sure what you mean by "polish"?
If you're asking about ways to create higher quality snapshot images,
I'd suggest the following:
  - See the new "VMD Images and Movies" tutorial:
      http://www.ks.uiuc.edu/Training/Tutorials/
 
  - Enable antialiasing in VMD, or in your display driver options
    (depending on whether you're using Unix, Windows, MacOS X, etc)

  - Use the GLSL rendering mode (Display->Rendermode->GLSL) if you have
    a GPU that supports it.

  - If you don't have high quality antialiasing capabilities in your
    GPU, enable the image smoothing and half-size rescaling options in the
    "Movie Settings" menu of the movie maker plugin, and make the VMD graphics
    window twice as large as you want the final movie to be.

Let us know if you have more questions...

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Mon, Jun 04, 2007 at 02:21:54PM -0400, xiaoqin huang wrote:
> another two questions:
> 1)how to add text label for the title of the movie?
> 2)how can I polish the snapshots when generating ppm files?
> thanks for help.
>
> xiaoqin
>
> 06/04/2007
>
>
>
> >From: John Stone <johns_at_ks.uiuc.edu>
> >To: Kailee <kaileeamber_at_googlemail.com>
> >CC: vmd-l_at_ks.uiuc.edu
> >Subject: Re: vmd-l: question about making movies
> >Date: Wed, 16 May 2007 14:44:17 -0500
> >
> >
> >Hi,
> > The display rate of VMD is limited by the speed of your graphics
> >board (GPU). The display rate of the movie is set by the video encoder,
> >and in the case of standard PAL and NTSC movie formats, this is either
> >24, 25, 29.97, or 30 frames per second. The movie maker plugin for VMD
> >uses 24 FPS when encoding MPEG movies, so presumably the large speed
> >difference
> >you observed in the rate of movie playback versus what you see in VMD just
> >indicates that when you're displaying interactively in VMD, that your
> >graphics card is only achieving something on the order of 8 FPS.
> >If you had a 500 frame trajectory, the longest that movie can run
> >with no duplication of video frames, is just over 20 seconds, assuming
> >you encoded it as an MPEG movie with the normal 24 frames per second rate
> >that the plugin uses by default. Can you verify that your movie contains
> >all 500 frames? (mplayer and/or other movie player tools can tell you
> >how many frames are in the movie, the frame rate, etc)
> >
> >Cheers,
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> >
> >On Wed, May 16, 2007 at 05:49:50PM +0100, Kailee wrote:
> >> Dear VMD users,
> >>
> >> I am trying to use VMD to make movie from AMBER trajectory files after
> >MD, I
> >> can make a movie using the movie generator in VMD, however, I found that
> >the
> >> atom moves much faster than that viewed using VMD. For example, I have
> >500
> >> frames in total, and when I use VMD to view this trajectory, it cost
> >about
> >> 40 seconds to finish from frame 1 to frame 500, but when I set the movie
> >> duration as 40 seconds in the movie generator, it is actually within
> >only 10
> >> seconds to go from frame 1 to frame 500, therefore in the 40 seconds
> >movie I
> >> have made, it played 4 times the trajectory and all the atoms move much
> >> faster. Can anyone tell me what's wrong with this and how should I make
> >a
> >> right movie?
> >>
> >> Thank you for any suggestion.
> >>
> >> Kailee
> >
> >--
> >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/ Fax: 217-244-6078
>
> _________________________________________________________________
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-- 
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/      Fax: 217-244-6078