January 2026 - Chimera-users - RBVI Mailing Lists

Conference Announcement: 38th Molecular Modelling Workshop in Erlangen, Germany - March 9/10 2026
by Harald Lanig 30 Jan '26

30 Jan '26

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md movie
by Natesh Singh 29 Jan '26

29 Jan '26

Dear support team, I am trying to make a md movie using the md movie utility of Chimera 1.19. But it seems that in the end, it is creating a kb size mp4 file with no movie inside. Can anyone help me in this regard? sincerely Natesh

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Re: md movie
by Tom Goddard 29 Jan '26

29 Jan '26

Hi Natesh, Glad you figured it out. Probably image save with 3x3 supersampling is not working because of a limitation of your graphics driver. Tom > On Jan 28, 2026, at 11:56 PM, Natesh Singh <singh.natesh(a)gmail.com> wrote: > > Hello Tom, > I just found that when I do supersample 2X2, it creates the movie, but not with supersample 3X3 or 4X4. I do not know the reason why it is not generating movies with higher supersamples. But I am glad that it worked out at 2X2, which is sufficient for my purposes. > Thanks for your feedback > sincerely > Natesh > > On Thu, Jan 29, 2026 at 7:54 AM Natesh Singh <singh.natesh(a)gmail.com <mailto:singh.natesh@gmail.com>> wrote: >> Hello Tom, >> Thanks for your reply. >> But I am trying to make a movie from a single PDB MD trajectory file using the MD Movie plugin in Chimera. >> In the past, I had successfully used this plugin to create movies from MD simulation trajectories, but suddenly it is not working. It is creating empty movies, so I am not able to understand what happened in the meantime. Could you reflect on this about the possible reasons, some software update needed, etc? It seems that at the end of playing frames ffmpeg.exe opens up, but it is not able to transform the frames into a video file. I see the empty screen of ffmpeg.exe, followed by an empty video file. >> Many thanks >> Natesh >> >> On Thu, Jan 29, 2026 at 2:25 AM Tom Goddard <goddard(a)sonic.net <mailto:goddard@sonic.net>> wrote: >>> Hi Natesh, >>> >>> The usual cause of empty movies is that you did not use the "wait" command in your movie recording. That is the command that waits for frames to be rendered. Here is an example set of command to make a movie rotating a structure 90 degrees. >>> >>> open 1a0m >>> movie record ; turn y 1 90 ; wait 90 ; movie encode ~/Desktop/test.mp4 >>> >>> Here is a Chimera movie making tutorial that gives more examples >>> >>> https://www.cgl.ucsf.edu/chimera/data/nih-oct2012/movies.html >>> >>> and here is detailed Chimera movie documentation >>> >>> https://www.cgl.ucsf.edu/chimera/docs/UsersGuide/movies.html >>> >>> Tom >>> >>> >>>> On Jan 28, 2026, at 5:04 PM, Natesh Singh via Chimera-users <chimera-users(a)cgl.ucsf.edu <mailto:chimera-users@cgl.ucsf.edu>> wrote: >>>> >>>> Dear support team, >>>> I am trying to make a md movie using the md movie utility of Chimera 1.19. But it seems that in the end, it is creating a kb size mp4 file with no movie inside. >>>> Can anyone help me in this regard? >>>> sincerely >>>> Natesh >>>> _______________________________________________ >>>> Chimera-users mailing list -- chimera-users(a)cgl.ucsf.edu <mailto:chimera-users@cgl.ucsf.edu> >>>> To unsubscribe send an email to chimera-users-leave(a)cgl.ucsf.edu <mailto:chimera-users-leave@cgl.ucsf.edu> >>>> Archives: https://mail.cgl.ucsf.edu/mailman/archives/list/chimera-users@cgl.ucsf.edu/ >>>

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