TUD Organische Chemie

Immel

Graphics

Povray 3.5

atten2

View or Print (this frame only)

Example Graphics

(low quality jpg-image only)

Example file (atten2.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 = 1.5;
#declare Distance = 5;

#declare Col1 = -15;
#declare Col2 = 35;
#declare Row1 = 30;
#declare Row2 = -10;

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
}
}

//
// Make a prism.
//

#declare Prism = prism {
-0.5, 0.5, 4
<-1, -0.3>, <1, 0>, <-1, 0.3>, <-1, -0.3>
scale 12
}

//
// Translucent prism without attenuation
//

object { Prism translate
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 prism with linear attenuation
//

object { Prism translate
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 prism with quadratic attenuation
//

object { Prism translate
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 prism with cubic attenuation
//

object { Prism translate
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 }