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25 Nov 2024 22:57:08 EST (-0500)
  repeat in texture wrapped around a sphere (Message 1 to 2 of 2)  
From: Rafal Maj Raf256
Subject: repeat in texture wrapped around a sphere
Date: 8 Feb 2005 21:24:30
Message: <4209745e@news.povray.org>
I must be geting old or something - I forgot how to make a texture that:

1) is a material_map
2) is wrapped around sphere like with map_type 1 or uv_mapping
3) but is scaled/repeated _before_ wraping around

In example like:
#declare texSiatka = texture {
  material_map {
    png "xbw.png" interpolate 4
    texture { pigment { rgb y } }
    texture { pigment { rgb x } }
  }
}

And .png is image of one "X" shaped latter. 
I want sphere be covered with in example 10 "X"-es in both directions
(10*10) and not just one.








-- 
Rafal Maj Raf256


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From: Marc Jacquier
Subject: Re: repeat in texture wrapped around a sphere
Date: 9 Feb 2005 02:45:43
Message: <4209bfa7@news.povray.org>

news:4209745e@news.povray.org...
>
> I must be geting old or something - I forgot how to make a texture that:
>
> 1) is a material_map
> 2) is wrapped around sphere like with map_type 1 or uv_mapping
> 3) but is scaled/repeated _before_ wraping around
>

I have not a complete answer but here is a clue:
See
http://www.povray.org/documentation/view/3.6.1/407/
2.5.12.6.5

Scale down your image before warp

Marc


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