[Paraview] Exporting Animations from ParaView

[Alessandro Bellina]

Thanks for your answer Pei. Using FFMPEG works fine when I am able to
output the files. It is still giving me problems a certain amount of
frames in (jpg files) and creates similar effects as the export to
avi. So, it prolongs the creation of usable frames but nevertheless
stops working after a little while. Looking at the memory usage using
"top", I can see that my memory is going away at a rate of about
100MB/frame, and that is never freed (even after exiting paraview). I
am wondering if there is some sort of memory management problem with
the animation output.

Now, this wouldn't be too much of a big deal if I could tell paraview
to pick up where it left off (i.e. frame0100.jpg) and keep going until
the end, it always tries to start from the beginning (i.e.
frame0000.jpg). That's something else I noted.

My files are VTK files with a PVD file that has a collection node
(where I specify the corresponding timesteps). Correct me if I am
wrong, but I am supposed to output to each one of the files the mesh
structure (cells, nodes, offsets and type) each time I output a
timestep? I thought I could get around this and have one file that
describes the geometry, and have timesteps that only contain data
values but I am not sure how this would be done. I think that this
might have something to do with the memory problems.

Thanks,

Alessandro



On Jan 22, 2008 6:03 AM, Pei-Ying Hsieh <phsieh2005 at yahoo.com> wrote:
>
> Hi,
>
> This happened to me when there are many time steps.  In this case, I usually
> export each time step as jpg (you can save animation, then, select jpg.
> this will save a sequence of jpg images).  Then, use ffmpeg to convert the
> sequence of jpg into mpg.
>
> BTW, I am still using paraview 2.4.4.
>
> Pei
>
> ----- Original Message ----
> From: Alessandro Bellina <bellina at uiuc.edu>
> To: paraview at paraview.org
> Sent: Monday, January 21, 2008 10:28:03 PM
> Subject: [Paraview] Exporting Animations from ParaView
>
>  Hello,
> I am using ParaView 3.2.1 and Linux Ubuntu. I am trying to output an
> animation based on a collection of about 2000 time frames. The output
> file(s) get corrupted. I have tried exporting as AVI and JPEG but the
> same issue happens. After 1 or two frames, they go black, and the
> remainder of the movie is either black frames or grainy looking (like
> static on digital TV). I am not sure what the problem is. I have tried
> cutting the amount of time steps to 500 and I still get the same
> issue. Any recommendations?
>
> Thanks,
>
> Alessandro
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