[osg-users] photos to be displayed in sequence

Simon Hammett s.d.hammett at googlemail.com
Thu Mar 5 16:02:27 PST 2009


So you need @ minimum168 Mb/sec streaming bandwidth from your hard discs....

That's not utterly insane, but many older PC's won't be able to
deliver that sort of bandwidth.

On my current machine the burst transfer rate from cache (ie memory to
memory copy)
is only 184 Mb/sec.

Reading from HD I only get 60 Mb/sec at peak so I couldn't run
your program smoothly even if you haven't made any mistakes...

If you want your program to work on anything other than very high end machines,
you are going to have to change to a compressed image format.

2009/3/5 salvatore <osgforum at tevs.eu>:
> hello Robert,
> I have 40,000 photos in tga format with 1400x1050 definition and a frame rate of 30 fps, the load in this way:
>
> imageSequence-> addImage (osgDB:: readImageFile ("hh3fcenter/immage_.....tga"));
>
> in the various attempts I have tried with 240 photos and goes very badly, I thought to pack 30 photos in a knot so as to obtain the nodes that represent a second, but I do not know how to play these nodes so that the sequence is continuous,
> thanks in advance
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=8013#8013
>
>
>
>
>
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>



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