From: Simon C Mills (simon++at++wgs.estec.esa.nl)
Date: 10/05/2000 01:18:17
Sakns wrote:
>
> Hi there,
>
> One of the tips in the performer manuals says that for best
> results, specify ranges (pfLOD) only where necessary; give
> browsers as much freedom as possible to choose LODs based on
> performance and system stress.
> Can someone elaborate a little bit on this one.
>
> I set up a pfLOD node without ranges at all and none of the lods
> show up. Then I only set up the first and the last ranges, and the
> lod never switches to the high level. It always stays with the
> low.
It sounds like you may be confusing Performer with VRML, which you view
in a browser, where you can do this. Performer always requires the LOD
ranges to be specified to work properly. You can then optionally have
the system stress level modify these LOD ranges to maintain a more
constant frame rate.
> When I setup the correct ranges then it works as expected.
> I only have 3 objects under the LOD node.
Ths is what I would expect.
> So what does the tip mean?
AFAIK, this is only relevant to VRML scenes viewed in a browser.
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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