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// This work is licensed under the Creative Commons Attribution 3.0 Unported License.
// To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/
// or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View,
// California, 94041, USA.
// Persistence of Vision Ray Tracer Scene Description File
// File: subsurface.pov
// Vers: 3.7
// Desc: Subsurface Scattering Demo - Candle on a Checkered Plane
// Date: 2011-02-25
// Auth: Christoph Lipka
//
// Recommended settings:
// +W640 +H480 +A0.3
// Rendering time:
// ~4 min on a 2.3GHz AMD Phenom X4 9650 QuadCore
#version 3.7;
#include "colors.inc"
global_settings {
assumed_gamma 1.0
mm_per_unit 40
subsurface { samples 400, 40 }
ambient_light 0.3
}
// ----------------------------------------
camera {
location <0.0, 2.5, -4.0>
angle 50 // direction 1.5*z
right x*image_width/image_height
look_at <0.5, 1.0, 0.0>
}
sky_sphere {
pigment {
gradient y
color_map {
[0.0 rgb <0.6,0.7,1.0>]
[0.7 rgb <0.0,0.1,0.8>]
}
}
}
light_source {
<-30, 30, -30>
color rgb <1,1,1>
}
// ----------------------------------------
// a checkered white/"black" marble plane
plane {
y, -0.01
texture {
checker
texture {
// marble parameters derived from Jensen et al. "A Practical Model for Subsurface Light Transport", Siggraph 2001
pigment {
crackle
turbulence 0.7
color_map {
[0.5 color rgb <0.83,0.79,0.75>*1.0]
[0.9 color rgb <0.83,0.79,0.75>*0.8]
[1.0 color rgb <1.00,0.75,0.70>*0.5]
}
scale 0.3
}
normal {
agate 0.085
turbulence 2
}
finish{
diffuse 0.8
specular 0.6
reflection { 0.2 fresnel }
conserve_energy
subsurface { translucency <0.4562, 0.3811,0.3325> }
}
}
texture {
pigment{ crackle turbulence 0.25
form <-1,1,0.05>
color_map { [0.00 color rgb<1,1,1>]
[0.025 color rgb<0.252,0.482,0.372>]
[0.05 color rgb<0.082,0.092,0.072>]
[0.15 color rgb<0.05,0.09,0.06>]
[0.52 color rgb<0.008,0.019,0.012>]
[0.65 color rgb<0.0025,0.0029,0.0014>]
[0.75 color rgb<0.0060,0.0084,0.0065>]
[1.00 color rgb<0.008,0.012,0.012>]
}
}
normal {
agate 0.085
turbulence 2
}
finish{
diffuse 0.8
specular 0.6
reflection { 0.2 fresnel }
conserve_energy
subsurface { translucency <0.4562, 0.3811,0.3325> }
}
}
scale 4
translate <0.7,0,1>
}
interior { ior 1.5 }
}
// the classic chrome sphere
sphere { <1.5,0.7,1>, 0.7
pigment { color rgb 1 }
finish {
ambient 0 diffuse 0
specular 0.7 roughness 0.01
conserve_energy
reflection { 0.7 metallic }
}
}
// a candle...
blob {
threshold 0.5
cylinder { <0.0, 0.0, 0.0>,
<0.0, 2.0, 0.0>, 1.0, 1.0 } // candle "body"
sphere { <0.0, 2.5, 0.0>, 0.8, -2.0 } // (used to shape the candle top)
sphere { <0.0,-0.52, 0.0>, 0.8, -2.0 } // (used to shape the candle bottom)
sphere { <0.0, 2.0, -0.5>, 0.1, -0.2 } // the "notch" where wax runs over
cylinder { <0.0, 1.88,-0.52>,
<0.0, 1.5, -0.52>, 0.05, 0.2 } // a streak of wax running over
sphere { <0.0, 1.5, -0.55>, 0.07, 0.2 } // a drop of of wax running over
texture {
// bees' wax
pigment { color rgb <0.8,0.50,0.01> }
finish{
diffuse 0.6 specular 0.6 roughness 0.1
subsurface { translucency <5,3,1>*0.5 }
}
}
interior { ior 1.45 }
rotate -y*45
}
// ... and the wick
intersection {
box { <-1,-1,-1>, <0,1,1> }
torus { 0.15, 0.03 }
rotate x*90
translate <0.15, 1.95, 0.0>
pigment { color rgb 0 }
finish { ambient 0 diffuse 1 specular 0 }
no_shadow
}
// a classic-textured slab for comparison
superellipsoid {
<0.1,0.1>
texture {
pigment { color rgb <0.9,0.6,0.6> }
finish{
diffuse 1.0
specular 0.6
reflection { 0.2 fresnel }
conserve_energy
}
}
interior { ior 1.45 }
scale <0.25,0.05,0.25>
rotate y*30
translate <1.2,0.05,0.25>
}
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