VMD-L Mailing List

From: Maxim Belkin (mbelkin_at_ks.uiuc.edu)
Date: Fri Feb 27 2015 - 14:42:10 CST

Alternative solution is to use VMD to render movie frames and then use ffmpeg to render your movie with desired FPS rate.

ffmpeg -r 0.5 -i imagename%03d.png -c:v libx264 -r 30 output.mp4

Here, every frame will be displayed for 2 seconds (0.5 fps).

Maxim

> On Feb 27, 2015, at 2:31 PM, John Stone <johns_at_ks.uiuc.edu> wrote:
>
> Most movie formats display images at 24 or 30 frames per second.
> To make a longer movie with VMD, you can either load a larger number
> of frames from your simulation trajectory (that's what I'd do) and
> use that for your movie, or, if that isn't possible, you can
> duplicate each frame 10 times, and than you'll get something that
> lasts for about 8 seconds.
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Sat, Feb 28, 2015 at 01:54:59AM +0530, anu chandra wrote:
>> Dear VMD users,
>>
>> I am trying to make 30second movie with VMD movie making utility. I have a
>> short 20 frame trajectory and movie making with 'tajectory' option
>> generate only a very short movie ( last for only 6-8 seconds), even though
>> I tried changing the 'time duration' options many times. Is there a way in
>> VMD where I can make a movie with such a short (20 frame) trajectory?
>>
>> Many thanks in advance
>>
>> Anu
>
> --
> 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/