Anthony D. Baye wrote:
> McHannemann wrote:
> 
>> Hello everyone,
>>
>> I have a question:
>> I would like to do the following,
>> I have a Mesh with a displacement map(UV-Mapped in Z-Brush),
>> I want to use it with the mesh as a isosurface and the texture
>> as function, how is it done?
>>
>> #declare disp = function{
>>  image_map { BITMAP_TYPE "displacement map.bmp")
>>  }
>>
>> #declare dispiso =
>>  isosurface{
>>   function{
>>    mesh(x,y,z) - disp(x,y,z).grey)
>>   }
>>  }
>>
>> is a starting idea?
>>

>>
>> Thnx
>>
>> Thor
>>
>>
>>
> The only way I can think of is to use the object pattern.
> f/ex.
> 
> #declare disp =
> function {
>    pigment {
>       image_map {
>          bmp "displacement_map.bmp"
>          map_type 0
>          interpolate 0
>          once
>          }
>       }
>  }
> 
> #declare dispiso =
> function {
>    pattern {
>       object { yourmeshobject }
>       }
>    }
> 
> 
> isosurface {
>    function { dispiso(x,y,z) - disp(x,y,z).red }
>    max_gradient 10
>    threshold 0
>    contained_by { box { -obj_max_extent, obj_max_extent } }
>    }
> 
> This is where I'd start.
> 
> Regards,
> 
> ADB
http://www.econym.demon.co.uk/isotut/dont.htm

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