> Yeah... life is so complex to render...
>
> Alright, if I manually generate a texture for wet area as saturation
> level or something similar, how can I apply a special *finish* only
> to the wet area?
>
> I tried like: material { texture {T_Stone24 scale 0.3} texture {
> pigment {uv_mapping image_map {png "wet.png"}} finish {phong 1
> reflection {0.1, 1 fresnel} conserve_energy} } } where "wet.png" is
> basically transparent except some wet areas.
>
> It's syntactically renderable, but does not render what I intend; the
> *finish* is applied to all surfaces, i.e. T_Stone24 as well. Am I
> missing something?
>

  Yes, the texture map:

material{
   texture{
     pigment_pattern{
      image_map{ png "wet_map.png" }  // grayscale (white=dry, black=wet)
     }
     texture_map{
       [0 t_dry]  // dry texture previously defined
       [1 t_wet]  // wet texture
     }
   }
}


   Hope this helps...



-- 
Jaime Vives Piqueres
		
La Persistencia de la Ignorancia
http://www.ignorancia.org

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