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Give you
#version 3.7;
global_settings{
max_trace_level 3
assumed_gamma 1.0
adc_bailout 0.007
mm_per_unit 1000 //important for subsurface
radiosity{
pretrace_start 64/image_width
pretrace_end 4/image_width
count 60
nearest_count 6
error_bound 0.64
recursion_limit 8
low_error_factor 0.5
gray_threshold 0.0
brightness 1
media off
}
}
default{
texture{
pigment {rgb<0.2,0.2,0.2>}
finish{ambient 0 diffuse 0}
}
}
//---------------------background------------------------
background{rgb <0,0,0>}
//-------------------settings--------------------------------
//--------------------light source-----------------------------
light_source {
<-4, -2.5, 4>*100
color rgb <1.0, 0.88, 0.76>*1.75
parallel
point_at <0.0, 0.0, 0.0>
rotate <0,0,106>
}
sky_sphere{
pigment {rgb <0.35,0.55,1>*0.6}
}
//------------------------------------------
camera{
location <10,5,6>
look_at <0, 0, 0>
right <-4/3,0,0>
sky <0,0,1>
angle 32
}
//----------------------------------------
//ground
#declare t_soil1=
texture{
pigment{rgb<0.2,0.164,0.1>*0.8}
finish{ambient 0 diffuse 1}
}
plane{
<0,0,1>,0
texture{t_soil1}
}
//media
#declare coverage = 0.30; // can adjust it
#declare coverage2 = 0.32; // can adjust it
#include "functions.inc"
#declare f_test =
function(x,y,z) {
coverage2*sum(i, 0, 4, pow(abs(f_noise3d(x*pow(2, i)/0.2, y*pow(2, i)/0.2,
z*pow(2, i)/0.2)), 2.5)/pow(2.0, i) )
}
#declare f_cloud_base =
function(x,y,z) {
0.5 - f_test(x,y,z)*3*3*z*exp(-3*z) - coverage*3*3*z*exp(-3*z)
}
#declare dens_cloud =
density{
function{0.5 - 0.2*f_cloud_base(x,y,z)}
color_map{
[0 rgb 0]
[0.5 rgb 0]
[0.51 rgb 1]
[1 rgb 1]
}
}
box{
<-20.0, -1.0, 0.0>, <20.0, 1.0, 1.0>
hollow
material{
texture{
pigment{rgbt<0,0,0,1>}
finish{ambient 0 diffuse 0}
}
interior {
media{
samples 12
scattering{
1, rgb< 0.5, 0.75, 1.5 >*10.0
extinction 1.0
}
density {
dens_cloud
}
}
}
}
scale <1.6, 1.6, 1.0>
translate <0,0,0>
}
//water
box{
<-20.01, -1.0, 0.1>, <20.01, 1.0, 0.45>
material{
texture{
pigment{rgbf<1,1,1, 0.99>}
finish{
ambient 0 diffuse 1 fresnel reflection{0.01, 1 fresnel }conserve_energy
}
}
interior{
ior 1.33
}
}
scale <1.6, 1.6, 1.0>
}
//ditch
difference{
box{
<-20.0, -1.05, 0.0>, <20.0, 1.05, 1.0>
}
box{
<-20.01, -1.0, 0.1>, <20.01, 1.0, 1.01>
}
texture{
pigment{rgb<0.4,0.4,0.4>}
finish{ambient 0 diffuse 1}
}
scale <1.6, 1.6, 1.0>
translate <0,0,0>
}
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Preview of image 'discharge.png'
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net> wrote: