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![](/i/fill.gif) |
camera {
location <0, 1.6, -3.3>
look_at <0, 1.6, 0>
}
light_source {<-6, 5, -7> color rgb 1}
background{color rgb<0.6, 0.7, 1>*1.3}
#declare Bark1 = pigment{
wrinkles
turbulence 0.1
color_map {
[0 rgb <0.9, 0.7, 0.6>*0.6]
[1 rgb <0.85, 0.8, 0.79>]
}
scale 0.05
scale<0.6, 0.25, 0.25>
}
#declare P1 = pigment{
wrinkles
turbulence 0.1
color_map {
[0 rgb 1]
[1 rgb 0]
}
scale 0.05
scale<0.5, 0.25, 0.25>
}
#declare F1 = function{
pigment{P1}
}
#declare S = function {
spline {
natural_spline
-0.25, <-1, 0, 0>
0.0, <0, 0, 0>
0.25, <1, 0, 0.5>
0.50, <2, 0, 0>
0.75, <3, 0, 0.5>
1.00, <4, 0, 0>
}
}
#declare Trunk1 = isosurface {
function {pow((y - S(x).y),2) + pow((z - S(x).z), 2) - 0.07 +
F1(x,y,z).grey*0.025}
max_gradient 5
contained_by{box{<0, -0.2, -1>, <0.8, 2, 1>}}
pigment{Bark1}
finish {ambient 0.2 phong 0}
rotate -x*90
scale<4, 1, 1>
rotate z*90
}
object{Trunk1 scale 1}
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![](/i/fill.gif) |