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"Greg M. Johnson" wrote:
>
> The point is that every time I started to mess with HF's, I wallowed in indecision
> about the resolution. If I made it too coarse, I could never do an animation later
> of a flyby close up or balls bouncing off of it or a man hiking up it. If I made it
> finer, it still wasn't going to be fine enough for whatever use I haven't thought up
> yet.
>
I usually do the HF in several resolutions and use low for the test renders and
high for the final versions. It's also possibe to combine two Heightfields, one
for the large scale and one for details in the foreground.
> Isosurfaces have the same appeal over HF's that vector art has over 2d bitmap
> painting, and really, 3D over vector and bitmap painting. When I do my rolling
> algorithm, I set up my isosurface in an INC. When I need to accurately compute
> normals for the traces which determine particle trajectories, I set my
> accuracy=0.00001, when I trace, it's 0.01 or 0.001.
>
> Vector programs didn't render bitmap painting obsolete, per se..............
>
Agreed, but I like bitmap painting :-)
Christoph, who also likes vectorizing photographs...
--
Christoph Hormann <chr### [at] gmx de>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
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From: Rune
Subject: Re: Flight over mountains and lakes [~53KB Jpg]
Date: 27 Jul 2000 17:15:06
Message: <3980a65a@news.povray.org>
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Very very nice!
One comment - isn't the long vision a bit unrealistic? I'm not sure, but I
think it would be far more realistic if a lot of fog were added.
Greetings,
Rune
--
Updated July 23: http://rsj.mobilixnet.dk
3D images, include files, stereograms, tutorials,
The POV Desktop Theme, The POV-Ray Logo Contest,
music, 350+ raytracing jokes, and much more!
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Very nice render Bob! Is this a glacial area?
I'd say it's too even; the flat areas and the peaks have a pretty constant
elevetion. Otherwise realistic...
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://www.faricy.net/~davidf/
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From: Ross Litscher
Subject: Re: Flight over mountains and lakes [~53KB Jpg]
Date: 27 Jul 2000 19:31:37
Message: <3980c659$1@news.povray.org>
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> Since the animation was so garbled I figure a nice still image should be
> uploaded.
>
> Bob
>
Kind of what I picture the dragontail mountains to look like...
I think they're caleld Dragontail mountains, from the game Daggerfall. Mmmm,
Arena 3 is comming out next year.
ross.
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From: Bob Hughes
Subject: Re: Flight over mountains and lakes [~53KB Jpg]
Date: 27 Jul 2000 21:31:05
Message: <3980e259@news.povray.org>
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"Rune" <run### [at] inamecom> wrote in message
news:3980a65a@news.povray.org...
| Very very nice!
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| One comment - isn't the long vision a bit unrealistic? I'm not sure, but I
| think it would be far more realistic if a lot of fog were added.
And I had thought there was plenty of ground fog in there :-(
I was kind of thinking of high base elevation for the lakes to begin with,
that's why the air is very clear.
Bob
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From: Bob Hughes
Subject: Re: Flight over mountains and lakes [~53KB Jpg]
Date: 27 Jul 2000 21:33:13
Message: <3980e2d9@news.povray.org>
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"David Fontaine" <dav### [at] faricynet> wrote in message
news:3980BB3D.9AAAF0B9@faricy.net...
| Very nice render Bob! Is this a glacial area?
| I'd say it's too even; the flat areas and the peaks have a pretty constant
| elevetion. Otherwise realistic...
Thanks, guess I should have used Zpaint :-)
Don't think this could be glacial until a second isosurface were added, and
I'm not thinking of doing that.
Bob
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