| TUD Organische Chemie | | Immel | | Graphics | | Povray 3.1 | | atten2 | | | View or Print (this frame only) |
Example file (atten2.pov):
// Persistence Of Vision raytracer version 3.0 sample file.
// Distance based attenuation in translucent objects example
#version 3.0
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 colour Yellow colour Green
scale 4
}
finish {
ambient 0.2
diffuse 0.8
}
}
//
// Make a prism.
//
#declare Prism = prism {
-0.5, 0.5, 3
<-1, -0.3>, <1, 0>, <-1, 0.3>
scale 12
}
//
// Translucent prism without attenuation
//
object { Prism translate
pigment { rgbt<1, 1, 1, 0.9> }
finish {
ambient 0
diffuse 0
refraction 1
ior IOR
phong 1
phong_size 200
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
refraction 1
ior IOR
phong 1
phong_size 200
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
refraction 1
ior IOR
phong 1
phong_size 200
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
refraction 1
ior IOR
phong 1
phong_size 200
fade_distance Distance
fade_power 3
}
}
//
// Due to the atmospheric attenuation and the large distance to
// the light source it has to be very bright.
//
light_source { <10000, 10000, -10000> colour White }