terrain generator 2005-04-13 - By Eric Lampi
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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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