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On Tue, 20 Nov 2001 19:21:54 -0800, Ken <tyl### [at] pacbell net> wrote:
> Consider -
> #declare Image = image { png "my_image.png" }
> height_field { Image ... }
> normal { bump_map { Image } }
> pigment { image_map { Image } }
> function { pigment { image_map { Image } } }
in fact there is something like image_pattern{} in 3.5
but it can't be assigned, can't be used directly within heigh_field and can't be
used as pattern for function{pattern{image_pattern{}}}
ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35
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