Re: [Algorithms] Terrain Organization

[Jim O. <j.o...@in...>]

Hail to scalability :-)

Jim Offerman

Innovade
- designing the designer

----- Original Message -----
From: "Tom Forsyth" <to...@mu...>
To: <gda...@li...>
Sent: Monday, July 31, 2000 11:04 AM
Subject: RE: [Algorithms] Terrain Organization


> Indeed - my goal for graphics systems is that when they are released, they
> should be able to bring even the best existing machine down to sub-1Hz
speed
> if you turn all the detail levels up, and yet have perfectly acceptable
> performance on five-year-old machines with the auto-LoD system on. That
way
> you know (a) you've done a good job of scaling stuff, (b) you're pretty
sure
> you can re-use the engine (or something derived from it) for the next
> project, and (c) people will still play your game in five years - it won't
> look sad. Oh yes, and (d) you might get some good bundling deals with new
> graphics cards - and they're always welcome.
>
> Tom Forsyth - Muckyfoot bloke.
> Whizzing and pasting and pooting through the day.
>
> > -----Original Message-----
> > From: Jim Offerman [mailto:j.o...@in...]
> > Sent: 31 July 2000 08:09
> > To: gda...@li...
> > Subject: Re: [Algorithms] Terrain Organization
> >
> >
> > > As for not everyone having TnL cards, well, I thought that
> > any game which
> > is
> > > *now* in development will probably run on fast systems. By
> > fast I mean
> > either
> > > TnL, or on CPUs which are fast enough that regular cards
> > don't suffer too
> > > much. Anyway, this is up to you, it depends on you budget
> > and a lot of
> > other
> > > things.
> >
> > If you are going to implement some form of CLOD (this is
> > where Tom Forsyth
> > would promote using VIPM - which is not a bad idea at all), I
> > think you
> > should couple the runtime error calculations to your fps...
> > i.e. if your fps
> > drops, crank down all lod levels in the game until the fps reaches an
> > acceptable level. Your gime might be spitting out 100K tris
> > per second on a
> > souped up PIII with GeForce2 GTS and pump through a humble
> > 15K on a PII with
> > TNT PCI.
> >
> > And, since you have tied your CLOD calculations to the fps you could
> > (theoratically) also truly design your game for the future -
> > i.e. use models
> > which by todays standards contain far to many triangles, the
> > CLOD will keep
> > performance acceptable on today's high end hardware and
> > increase detail on
> > tomorrow's hardware. Imagine playing Half-Life again, finding that the
> > overall detail has increased by a factor ten.
> >
> > Jim Offerman
> >
> > Innovade
> > - designing the designer
>
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