POV-Ray : Newsgroups : povray.binaries.images : Hawaii from SRTM (25+21+46k) Server Time
15 Aug 2024 12:19:54 EDT (-0400)
  Hawaii from SRTM (25+21+46k) (Message 11 to 15 of 15)  
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From: Christoph Hormann
Subject: Re: Hawaii from SRTM (25+21+46k)
Date: 18 Jul 2002 02:40:25
Message: <3D3662D9.CA781177@gmx.de>
Daniel Matthews wrote:
> 
> Can you use a lowres image map to bias a hires slope map?
> 

I don't understand, could you explain more detailed?

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______


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From: Jörg 'Yadgar' Bleimann
Subject: Re: Hawaii from SRTM (25+21+46k)
Date: 18 Jul 2002 17:45:18
Message: <3D37455A.C99A8A6F@tiscalinet.de>
High!

Awesome images... as I'm also about to model some realistic landscapes, I
would like to ask you how you did the distribution of surface colors exactly -
obviously it's not a simple image map, it more looks like a Terragen scene to
me! Did you still
use 3.1 or already 3.5?

See you in Khyberspace - http://home.arcor.de/yadgar/khyberspace/index-e.html
Afghanistan Chronicle: http://home.arcor.de/yadgar/index-e.htm

Yadgar


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From: Daniel Matthews
Subject: Re: Hawaii from SRTM (25+21+46k)
Date: 19 Jul 2002 00:33:32
Message: <1431736.sZ7DoVzkc0@3-e.net>
Christoph Hormann wrote:

> 
> 
> Daniel Matthews wrote:
>> 
>> Can you use a lowres image map to bias a hires slope map?
>> 
> 
> I don't understand, could you explain more detailed?
> 
> Christoph
> 
> --
> POV-Ray tutorials, IsoWood include,
> TransSkin and more: http://www.tu-bs.de/~y0013390/
> Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______

Well if you have a lowres file that you can interpolate you get a fuzzy 
image map, but if you use that interpolated data to set some sort of 
threshold for hires pov maps the you will get good textures, and they will 
be in the correct place.

-- 
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From: Christoph Hormann
Subject: Re: Hawaii from SRTM (25+21+46k)
Date: 19 Jul 2002 02:13:41
Message: <3D37AE15.2F907895@gmx.de>
Daniel Matthews wrote:
> 
> [...]
> 
> Well if you have a lowres file that you can interpolate you get a fuzzy
> image map, but if you use that interpolated data to set some sort of
> threshold for hires pov maps the you will get good textures, and they will
> be in the correct place.

I still don't understand, maybe just make an example.

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______


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From: Christoph Hormann
Subject: Re: Hawaii from SRTM (25+21+46k)
Date: 19 Jul 2002 02:18:57
Message: <3D37AF50.D9E66A50@gmx.de>

> 
> High!
> 
> Awesome images... 

Thanks.

> as I'm also about to model some realistic landscapes, I
> would like to ask you how you did the distribution of surface colors exactly -
> obviously it's not a simple image map, it more looks like a Terragen scene to
> me!

As said in the first post it uses slope patterns.

>  Did you still use 3.1 or already 3.5?

Since when are slope pattern and method 3 media available in 3.1?

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______


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