"Alan Holding" <Man### [at] btopenworldcom> wrote in message
news:3b6b164a@news.povray.org...
> For those of you into heightfields (come on, no need to be ashamed about
> it), the SRTM is beginning to release some interesting stuff.
>
> Check it out here (click on Data Products on the bottom of the page):
> http://www.jpl.nasa.gov/srtm/
>
> Or check out this news story:
> http://news.bbc.co.uk/hi/english/sci/tech/newsid_1472000/1472353.stm
>

  This originally in off-topic but I have some heightfield questions ...
I've always wanted to be able to use the DEM data for heightfields
but haven't a clue as how to get the data into a form that I can use.
Are there any tutorials for doing this?  Or ... can someome tell me
what DEM file formats to download and how to convert them to an
image that POVray will use ?
  I've never messed with heightfields either but will begin working
on figuring that out today.
TIA
--
Y

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All you really need to do is convert the DEM into TGA using one of the
several programs capable of doing so.
I've used Wilbur:
http://www.ridgecrest.ca.us/~jslayton/software.html
The POV Links has what looks like a real good one:
http://www.monumental.com/rshorne/3dem.html
And a web page worth looking at (mentions POV-Ray) is:
http://www.geocities.com/digital_terrain/

Then all you have to do is use the image as a height_field.

Bob H.

"Yooper" <Hos### [at] nettaxinet> wrote in message
news:3b6d5567$1@news.povray.org...
>
> "Alan Holding" <Man### [at] btopenworldcom> wrote in message
news:3b6b164a@news.povray.org...
> > For those of you into heightfields (come on, no need to be ashamed about
> > it), the SRTM is beginning to release some interesting stuff.
> >
> > Check it out here (click on Data Products on the bottom of the page):
> > http://www.jpl.nasa.gov/srtm/
> >
> > Or check out this news story:
> > http://news.bbc.co.uk/hi/english/sci/tech/newsid_1472000/1472353.stm
> >
>
>   This originally in off-topic but I have some heightfield questions ...
> I've always wanted to be able to use the DEM data for heightfields
> but haven't a clue as how to get the data into a form that I can use.
> Are there any tutorials for doing this?  Or ... can someome tell me
> what DEM file formats to download and how to convert them to an
> image that POVray will use ?
>   I've never messed with heightfields either but will begin working
> on figuring that out today.
> TIA
> --
> Y
>
>

Post a reply to this message

> All you really need to do is convert the DEM into TGA using one of the
> several programs capable of doing so.
 > Then all you have to do is use the image as a height_field.
>
> Bob H.
>
  I thank you, sir ... will check them out.
--
Y

Post a reply to this message