> isosurface
> {
>   #local R = 0.15;
>   function { x*x + z*z - R*R - 0.002*F_PilierEntree(x,y,z).gray}
>   max_gradient 2.5
>   contained_by { box { <-1,0,-1>, <1,2.4,1> } }
>   translate <0,0,8>
>   texture { T_PilierEntree }
> }

gRRominet has found on irc : the translate must be under the texture.

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