Re: making movies

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Simon Mills (simon++at++wgs.estec.esa.nl)
Mon, 29 Nov 1999 16:05:27 +0100

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Colin Bannister wrote:
>
> Robert Wolfe wrote:
>
> > Hi,
> >
> > Is there some easy software method for saving an
> > image of each Performer-generated frame in order
> > to construct a movie of the same sequence ?
> >
> > Robert
>
> When I did this, I inserted a call to pfuSaveImage in a DRAW call-back.
> As Simon says, this is quite an easy approach, but it slows the application
> up so you lose at lot of interactivity. The way I got 'round this was
> to implement a way to save a path, and replay it. While saving the path,
> the interactivity is preserved (the process is simply writing a few values
> to a file), and on replaying the path, and saving the images, interactivity
> doesn't matter.
>
> It sounds like Simon's method is much more complete, but this one works also,
> albeit in two steps.

I didn't mention it but I do this too. It is indeed a better way since
you don't loose interactivity. BTW, using the same interface I also make
nice smooth fly-throughs with animation packages like Wavefront, Explore
and now Maya, something that's difficult to do "by hand". I can then
startup my application with appropriate arguments on the command line
and it generates all my images files "off line".

Regards, Simon
________________________________________________________________________

Simon Mills
Silicon Worlds S.A.
c/o Modelling & Simulation Section (TOS-EMM) Tel: +31 (0)71 565 3725
European Space Agency (ESA/ESTEC) Fax: +31 (0)71 565 5419
Postbus 299, 2200AG Noordwijk e-mail: simon++at++wgs.estec.esa.nl
The Netherlands http://www.estec.esa.nl/wmwww/EMM
________________________________________________________________________

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