terrain generator 2005-04-13 - By Brad Abrahams
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I usually use Sukio's Geo Displace script in conjunction with greyscale
height maps converted from DEMs:
http://sukio.de/resources/geo_displace/
Brad
-- -- Original Message -- --
From: "Eric Lampi" <ericlampi@(protected)>
To: <XSI@(protected)>
Sent: Wednesday, April 13, 2005 11:03 AM
Subject: Re: terrain generator
> I spent some time using that subdivide and displace
> plugin to generate terrain, and it works really well.
> I used really high res grey scale images extracted
> from Digital Elevation Maps. Displacement isn't that
> practicle for something like this, because I had
> objects that needed to sit on the surface, and
> rendering it everytime I wanted to see it, would have
> driven me crazy.
>
> However if you take some time to plan you can save
> yourself a lot of geometry. In my case I was making a
> globe. So wide areas of ocean only need to be divided
> enough to wrap it on a sphere. I usually ran it once
> to layout the rough subdivisions, so I could see the
> major land masses. Then I select the polys that
> really need fine detail and run it again. Continue
> that until you can get really fine deatil where you
> need it, otherwise it will subdivide areas that don't
> really need it. Especially in cases where there were
> small islands. If I had done it to the whole thing,
> it would be so heavy it would have been unusable.
>
> Eric
>
>
>
>
> --- Pingo <pingo@(protected)> wrote:
> > Hey Tim. Dunno if this helps, but recently I had a
> > look at making
> > landscapes in xsi. I used an application called
> > world machine to
> > generate the terain files. (It's very cheap and
> > quite good IMHO!). Then
> > when I wanted to use the maps in XSI I found it very
> > annoying that the
> > displacement in XSI doesn't show in the viewport. So
> > I tried some
> > different plugins.
> > One is called Subdivide Displace and works really
> > well.
> >
> > http://www.mindthink.de/ohm/subdividedisplace
> >
> > the other one is called EM_Displacer
> >
> > http://www.xsibase.com/tools/plugins.php?detail=507
> >
> > that one is good one to have also.
> >
> > Mindthinktools' Subdivide Displace gave me the
> > advantage, that I could
> > actually see what I was displacing in the viewport,
> > and it subdivided
> > around sharp peaks. AFTERWARDS I was then able to
> > let XSI itself
> > subdivide further (with SubdivideDisplace height
> > turned to zero), but
> > only in the areas where it was needed... kinda
> > exponential:-/
> >
> > have a look at those plugins, and world machine, and
> > see if they can
> > help you some.
> >
> > cheers
> >
> > On Apr 13, 2005, at 2:54, Tim Thorburn wrote:
> >
> > > Hi,
> > >
> > > I'm new to the world of XSI, so please forgive me
> > if this is an overly
> > > noob-ish question. Recently I purchased XSI
> > Foundation 4.2 coming
> > > from a mostly LW background. I'm not preparing to
> > go to my first
> > > SIGGRAPH this summer and am working on a small
> > demo reel. My question
> > > is this - in LW when it came time to make terrains
> > I would most often
> > > turn to Terragen as it easily imported into LW.
> > What do ppl in XSI
> > > land use for terrain generators?
> > >
> > > Thanks in advance,
> > > -Tim
> > >
> > >
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>
> Freelance 3-D Animator, F/X Artist, Particle Man
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