From: John Breedlove (jbreedlo++at++cs.ucf.edu)
Date: 09/12/2002 14:37:41
The trees have around 20,000-30,000 polygons each. The terrain is much
simpler - only around 1,000 at most. The simulation will be from the air.
John
----- Original Message -----
From: "Donald Tidrow" <dtidrow++at++patriot.net>
To: "John Breedlove" <jbreedlo++at++cs.ucf.edu>
Sent: Thursday, September 12, 2002 4:14 PM
Subject: Re: [info-performer] optimizing performance
>
> How many polys per tree? Anything more than 4 (unless you're right up
> close to it) is generally a bad thing. Look at any way of maximizing
> tstrip lengths - longer is generally better, although there may be a sweet
> spot if all the data for a strip fits into a particular length (like 64
> bytes or something) LOD's are good, although you may want to update the
> billboards on a group basis - see http://www.dorbie.com/billboard.html for
> more good tips. IBRnodes could be a big benefit, but if you move quickly
> you may get hammered by redraws of the IBR images.
>
> Also, what's the underlying terrain like? TIN's, regular gridded mesh,
> ROAM-style adaptive mesh, etc? How much of the geometry is in the
> terrain vs. trees?
>
> On Thu, 12 Sep 2002, John Breedlove wrote:
>
> > Hi all,
> >
> > I'm looking for a few tips for optimizing performance (other than the
ones
> > listed in the manual). I have a forest made of several different tree
> > models (around 50 different ones created in 3D Studio and converted to
> > .pfb). There are about 800,000 polygons on the screen at one time. I
was
> > working on a P3 700Mhz/Geforce4 Ti4600/384MB SDRAM, and got around 5-9
fps.
> > I recently upgraded to a P4 2.53Ghz/Geforce4 Ti4600/2GB PC800 in the
hopes
> > of improving performance, but it is still pretty much the same. Any
> > suggestions on how I can improve performance? I plan on using LOD nodes
> > with billboards or IBRnodes to help, but I was wondering if there is
> > anything else I should be trying.
> >
> > Thanks,
> > John
> >
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>
> ---
> In October 1997, three computer lab staffers
> disappeared from the server room while debugging
> a mysterious router problem.
>
> One year later, their packet logs were found...
>
>
> The Blair Switch Project
>
> --------------------
> | Don Tidrow |
> | Vis-Sim Geek |
> --------------------
>
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