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On Tue, 20 Nov 2001 17:13:58 +0100, Christoph Hormann <chr### [at] gmx de>
wrote:
> having a possibility to declare
> images for both heightfields and image maps and at the same time avoiding
> double storage of data would be a good idea IMO.
That's what inspired me - storage of images.
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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