[Chimera-users] movie frame rate

[Ahmad Khalifa]

Thank you so much. I think rerecording the morphs is my best option. I
wonder however if there's a way to reset the molecular movie to start after
each time I play it using coordset. After it's playing, the model is
displayed in chimera as the last frame of the movie.

On Thu, Sep 27, 2018 at 1:16 PM Elaine Meng <meng at cgl.ucsf.edu> wrote:

> Hi Ahmad,
> My experiments just now suggest even “max framerate” may not have much
> effect on how fast the morph looks in interactive playback.  I think you
> will need to use approach #2:  go back and create the morph again, but with
> more steps.  That will slow down the motion during interactive playback (as
> well as in a recorded movie, if you make one).
> Best,
> Elaine
>
> > On Sep 27, 2018, at 10:05 AM, Elaine Meng <meng at cgl.ucsf.edu> wrote:
> >
> > Hi Ahmad,
> > I already answered this question in the previous reply!
> >
> > Again, if your goal is to make a recorded movie file, use one or both of
> the following:
> >
> > (1) you control framerate in a recorded movie file with “movie encode”
> command option “framerate”.   There is no Chimera command option tthat acts
> like the MD Movie dialog’s faster-slower slider, and “perframe” doesn’t do
> it.
> >
> > (2) go back and create the morph trajectory with more steps in it, e.g.
> spread the motion across 200 steps instead of 20.
> >
> > If you are NOT making a movie file and you only care about interactive
> playback, there is “set maxframerate” (this is different than what the MD
> Movie slider does), but it will have absolutely no effect on the speed of a
> recorded movie file.
> >
> > set maxFrameRate
> > <
> http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/set.html#maxframerate
> >
> >
> > discussion of frame rate and movie speed
> > <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/movies.html#speed>
> >
> > Best,
> > Elaine
> > -----
> > Elaine C. Meng, Ph.D.
> > UCSF Chimera(X) team
> > Department of Pharmaceutical Chemistry
> > University of California, San Francisco
> >
> >> On Sep 26, 2018, at 9:37 PM, Ahmad Khalifa <underoath006 at gmail.com>
> wrote:
> >>
> >> Thanks Elaine. I meant the framerate of the molecular movie not the
> movie that I'm recording. In the molecular movie window, there's a slider
> that goes from slow to fast. I want to be able to control the speed from
> the command line as well.
> >>
> >> Coordset plays the frames from 1 to 21 at the fastest speed. I tried to
> experiment with the perframe command but couldn't quite get it right. How
> can I use perframe to play the movie and introduce a wait of a few
> milliseconds in between frames thus controlling the speed of the molecular
> movie?
> >>
> >> Best regards.
> >>
> >> On Wed, Sep 26, 2018, 5:19 PM Elaine Meng <meng at cgl.ucsf.edu> wrote:
> >> Hi Ahmad,
> >> Sorry no.  However, in general movie framerate is not the same as when
> you are running Chimera, and movie framerate can be controlled with the
> framerate option of the “movie encode” command.
> >> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/movie.html>
> >>
> >> In our newer program ChimeraX (where most development effort is now),
> “coordset” does have a “pauseFrames” option to slow down playback:
> >> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/coordset.html>
> >> … but it is not implemented in Chimera “coordset”:
> >> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/coordset.html>
> >>
> >> In Chimera. other than just having a slower movie framerate as
> mentioned above, to show the morph more slowly you would need to create the
> morph trajectory with more frames.
> >>
> >> I hope this helps,
> >> Elaine
> >>
> >>> On Sep 26, 2018, at 10:46 AM, Ahmad Khalifa <underoath006 at gmail.com>
> wrote:
> >>>
> >>> Thank you so much, is there a way to set the frame speed with
> coordset?
> >
> >
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>
>
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