duell at brolga.atea.mat.army.defence.gov.au
Sun May 24 17:58:57 EDT 1998
Frank Lederer wrote:
> Hello grassers,
> is there anyone, who has experience with a realistic looking shaded relief?
> Do I need a raytracing-tool or is it possible to do it with grass-programms?
> I'm working with a relative 'soft' dem, but when I visualize with
> d.his(dem/aspect), it looks like a high mountain region.
An approach I have used with some success which gives a visually pleasing result
is as follows...
(1) apply r.mfilter to your elevation file, using the following filter matrix;
0 -2 -2
2 0 -2
2 2 0
using a divisor of 1
(2) apply a greyscale to the output file
See how that works for you.
Terry Duell, Senior Mobility Engineer
Army Technology & Engineering Agency
Maribyrnong, Victoria, Australia
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