Fwd: [Paraview] Exporting Animations from ParaView

[Alessandro Bellina]

Utkarsh,
I used the binary version first. I tried the HEAD of the CVS
repositor, compiled it and was able to run it but when I open my
dataset it hangs (it doesn't even give me the apply button.) I am not
sure if anybody else had that problem. Do send me the patch... I will
try to recompile and see what happens...

Thanks,

Alessandro


On Jan 22, 2008 10:11 AM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
> The blank images could be related to the fact that we use offscreen
> rendering when saving animation images. Some cards/drivers have shown
> issues with the frame buffer object based offscreen rendering we use.
> Are you using binaries or have you built from source? In CVS paraview,
> we now have an option to disable offscreen rendering.  If you have built
> from source, I can send you a patch to disable offscreen rendering.
>
> Utkarsh
>
>
> Alessandro Bellina wrote:
> > Mike,
> > thanks for your answer. I made sure that chache geometry was unchecked
> > and I am still getting the black screens. I never had that option
> > checked so the memory leaks are the same. Maybe I should try
> > installing 2.6...
> >
> > Alessandro
> >
> > On Jan 22, 2008 9:23 AM, Mike Jackson <imikejackson at gmail.com> wrote:
> >> There was an option in PV 2.6 called "cache geometry" where basically
> >> PV would load all your time steps into memory which was a problem for
> >> me. If you uncheck this box then PV will reuse the memory for each
> >> time step. This allows you to animate your entire data set but kills
> >> the performance of trying to playback the animation in real time from
> >> within PV. I would look for something similar in PV 3.
> >>
> >> Mike
> >>
> >>
> >> On Jan 22, 2008, at 9:48 AM, Alessandro Bellina wrote:
> >>
> >>> 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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