Excuse me for being so daft. But how do I wrap an image map around a
sphere? Here's what I have, copied from the Insert, Ready made, Image
map file for POV 3.1g:

sphere
{<0,0,0> 5
  texture
  {
    pigment
    {
      image_map
      {
        sys "marsmap.bmp"
        interpolate 2 // smooth it
        once   // don't tile image, just one copy
        
      }
      // transform it to unit-size (-1 to +1)
      translate -0.5*(x+y) // center on the origin
      scale 2              // make it unit-sized
    }
    finish {ambient 0.3}
  }
}
This keeps coming out as a plane, but I see my image map on it at least.

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Chuck Roberts wrote:
> 
> Excuse me for being so daft. But how do I wrap an image map around a
> sphere? Here's what I have, copied from the Insert, Ready made, Image
> map file for POV 3.1g:
> 
> sphere
> {<0,0,0> 5
>   texture
>   {
>     pigment
>     {
>       image_map
>       {
>         sys "marsmap.bmp"
>         interpolate 2 // smooth it
>         once   // don't tile image, just one copy
> 
>       }
>       // transform it to unit-size (-1 to +1)
>       translate -0.5*(x+y) // center on the origin
>       scale 2              // make it unit-sized
>     }
>     finish {ambient 0.3}
>   }
> }
> This keeps coming out as a plane, but I see my image map on it at least.

Add map_type 1 to your image map statement i.e.

image_map { sys "marsmap.bmp" map_type 1....

-- 
Ken Tyler

See my 700+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

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>Excuse me for being so daft. But how do I wrap an image map around a
>sphere? Here's what I have, copied from the Insert, Ready made, Image
>map file for POV 3.1g:

[cut]

You have to put map_type 1 inside the image_map statement.
It will give you spherical mapping.

--
Wojtek Bauman aka reaver | rea### [at] spleenwawpl | ICQ: 3429749 |
http://reaver.spleen.waw.pl | PGP: finger bauman@inx.pm.waw.pl |

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Try

sphere {
<0,0,0>,5
  texture {
    pigment {
      image_map {
      sys "filename.bmp"
      map_type 1
      }
    }
  }
}

Brendan Ryan

Chuck Roberts wrote:

> Excuse me for being so daft. But how do I wrap an image map around a
> sphere? Here's what I have, copied from the Insert, Ready made, Image
> map file for POV 3.1g:
>
> sphere
> {<0,0,0> 5
>   texture
>   {
>     pigment
>     {
>       image_map
>       {
>         sys "marsmap.bmp"
>         interpolate 2 // smooth it
>         once   // don't tile image, just one copy
>
>       }
>       // transform it to unit-size (-1 to +1)
>       translate -0.5*(x+y) // center on the origin
>       scale 2              // make it unit-sized
>     }
>     finish {ambient 0.3}
>   }
> }
> This keeps coming out as a plane, but I see my image map on it at least.

Post a reply to this message