TUD Organische Chemie

Immel

Graphics

Povray 3.5

atten1

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Example Graphics

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Example file (atten1.pov):

// Persistence Of Vision raytracer version 3.5 sample file.
// Scene by Dieter Bayer.
//
// This scene demonstrates distance based attenuation in translucent objects.
//

#global_settings { assumed_gamma 2.2 }

#include "colors.inc"

#declare IOR = 1.05;
#declare Distance = 20;

#declare Col1 = -15;
#declare Col2 = 35;
#declare Row1 = 25;
#declare Row2 = -5;

camera {
orthographic
location <0, 0, -100>
right 80 * 4/3 * x
up 80 * y
look_at <0, 0, 0>
}

//
// Use beloved famous raytrace green/yellow checkered wall
//

plane { -z, -20
pigment {
checker color Yellow color Green
scale 4
}
finish {
ambient 0.2
diffuse 0.8
}
}

//
// Translucent sphere without attenuation
//

sphere { , 10
pigment { rgbt<1, 1, 1, 0.9> }
finish {
ambient 0
diffuse 0
phong 1
phong_size 200
}
interior {
ior IOR
fade_distance Distance
fade_power 0
}
}

//
// Translucent sphere with linear attenuation
//

sphere { , 10
pigment { rgbt<1, 1, 1, 0.9> }
finish {
ambient 0
diffuse 0
phong 1
phong_size 200
}
interior {
ior IOR
fade_distance Distance
fade_power 1
}
}

//
// Translucent sphere with quadratic attenuation
//

sphere { , 10
pigment { rgbt<1, 1, 1, 0.9> }
finish {
ambient 0
diffuse 0
phong 1
phong_size 200
}
interior {
ior IOR
fade_distance Distance
fade_power 2
}
}

//
// Translucent sphere with cubic attenuation
//

sphere { , 10
pigment { rgbt<1, 1, 1, 0.9> }
finish {
ambient 0
diffuse 0
phong 1
phong_size 200
}
interior {
ior IOR
fade_distance Distance
fade_power 3
}
}

light_source { <10000, 10000, -10000> color White }