"A_C_C" <nomail@nomail> wrote in message 
news:web.442454c68e4dc7a2ee4c493c0@news.povray.org...
> I'll try to explain it better this time:
>
> http://es.geocities.com/borg31de777/grab_1.JPG
>
> This is how the object (a simple square) looks in the object editor of
> Anim8or.
>
> http://es.geocities.com/borg31de777/square_lt.JPG
>
> This is the texture applied to emmisive.
>
> http://es.geocities.com/borg31de777/render.jpg
>
> And this is how the square looks after rendering.
>
>

Hi A,

Looking at these images, it seems to me that you probably want to use the 
shapes of objects to define textures.

POV-Ray lets you do this with the 'object' pattern which is desribed in 
section 3.5.11.23  'Object Pattern' of the documentation.
The following example uses a box to create a transparent rectangle in an 
otherwise grey texture. This makes the first layer of the texture visible 
through the 'hole' in the second layered texture. The first layer is a white 
color with an ambient finish of 1, which makes it white even when it's in 
shadow (e.g. even with the light_source commented out).

This texture can be applied to any object, in this case I've applied it to a 
vertical plane.
You could simplify this down to a single layer texture if you don't need 
independant control over the finishes of the two color components.

Hope this is illuminating.

Regards,
Chris B.

camera {location <0,0,-8> look_at <0,0,0>}
//light_source {<0,3,-3> color rgb 1}

plane {z,0
  texture {
    pigment {color rgb 1}
    finish {ambient 1}
  }
  texture {
    pigment {
      object {
        box {<-0.5,0,-1><0.5,2,1>}
        color rgb <0.5,0.5,0.5>
        color rgbt 1
      }
    }
  }
}

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