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I'm currently working with an outdoor scene, and I'm using sunpos.inc
for my lightsource. The problem arises when I turn on photons, I keep
getting an error message saying "Photon map could not be saved: No
photons."
Does this have something to do with the distance sunpos.inc translates
the light_source? or am I missing something?
I tried incresing the number of photons using the spacing keword rather
than count, but it still hadn't finished the photon run after almost
three hours.
Might I get better results if I used a shadowless light_source w/o media
interaction to cast the photons, placing it closer to the scene and
aligning it with
rotate <0, Az-90, Al> (provided by sunpos.inc)?
I'm running POV 3.5 on a Macintosh G4, 400 Mhz with 64 megs of ram
(shockingly pathetic, isn't it?)
/*
Persistence of Vision Ray Tracer Scene Description File
File: Fountain.pov
Vers: 3.5
Desc: A beautiful marble fountain with wrought copper detailing.
Date: 10-19-03
Auth: Anthony D. Baye
*/
#include "kolors.inc"
#include "textures.inc"
#include "functions.inc"
#include "sunpos.inc"
#declare ft = 12 ;
/* !-- Global Switches --! */
#declare Rad = off ; // Bool
#declare Pho = on ; // Bool
#declare Tex = on ; // Bool
#declare Spr = off ; // Bool
#declare Cam = 2 ; // 1 = Viewer, 2 = Director, 3 = Aerial
#declare Sky = on ; // Bool
/* ----------------------- */
#include "FountainPieces2.inc"
/* !---- Global Settings ----! */
global_settings {
#if(Rad)
radiosity {
pretrace_start 0.02
pretrace_end 0.01
count 75
nearest_count 10
error_bound 0.1
recursion_limit 2
low_error_factor 0.2
gray_threshold 0.2
minimum_reuse 0.015
brightness 0.59
// save_file "Fountain.rca"
load_file "Fountain.rca"
adc_bailout 0.01/2
}
#end
#if (Pho)
photons {
count 20000
autostop 0
jitter 0.4
media 50, 30
save_file "Fountain.ptn"
// load_file "Fountain.ptn"
}
#end
max_trace_level 10
}
/* !---- Viewer and Lighting ----! */
/* --------------- Cameras ------------- */
/* Camera View */
#if(Cam = 1)
camera {
location <0.0, 5.5*ft, -5.5*ft>
up y
right 4/3*x
look_at <0.0, 5.5*ft, 0.0>
rotate 25.0*y
}
#end
/* Directors View */
#if(Cam = 2)
camera {
location <0.0, 4.5*ft, -20.0*ft>
up y
right 4/3*x
look_at <0.0, 4.5*ft, 0.0>
}
#end
/* Aerial View */
#if(Cam = 3)
camera {
location <0.0, 50.0*ft, -200.0*ft>
up y
right 4/3*x
look_at <0.0, 6.0*ft, 0.0>
}
#end
/* ------------------------------------ */
light_source {
SunPos(2004, 6, 12, 10, 30, 104.00, 44, 103.625)
color rgb 0.625
photons {
refraction on
reflection on
}
fade_power 2
media_interaction on
photons { reflection on refraction on }
}
/* !---------- Sky ----------! */
#if(Sky = off)
sky_sphere {
pigment { function { abs(y) } color_map {[0.0 color rgb 1] [0.375 color
rgb 0.625] } }
}
#else
#if(Sky = on)
sky_sphere {
pigment { function { abs(y) } color_map {[0.0 color rgb 1] [0.375 color
SkyBlue2 ] } }
}
/*
sky_sphere {
pigment { function { abs(y) } color_map {[0.0 color rgb 1] [0.375 color
SkyBlue2 ] } }
pigment {
gradient y
color_map {
[0.000 0.00125 color rgbf <1.0, 0.8, 0.0, 0.0> color rgbf <1.0,
0.75, 0.0, 0.0> ]
[0.00125 0.01 color rgbf <1.0, 0.75, 0.0, 0.0625> color rgbf <1.0,
0.75, 0.0, 1.0> ]
}
scale 1
rotate 90.0*z
rotate <0, Az-90, Al>
}
}
*/
/* ! ------ Sky Media ------ ! */
media {
method 3
intervals 1
scattering { 4, <0.000009, 0.00000775, 0.000005>/2.0 extinction 1 }
samples 30, 50
// absorption rgb <0.0000064, 0.000005397, 0.0>/2
confidence 0.9999
variance 1/1000
ratio 0.9
density {
wrinkles
ramp_wave
color_map {
[0 rgb 0]
[0.4 rgb 0]
[0.6 rgb 0.275]
[1 rgb 0.475]
}
scale <600000*ft, 100000*ft, 50000*ft>/1.0
/* rotate y*25
translate <1000*ft, (28.0*(5280*ft))-(70000*ft), 0>*/
}
density {
crackle
triangle_wave
turbulence 1.5
color_map {
[0 rgb 0]
[0.3 rgb 0]
[0.75 rgb 0.25]
[1 rgb 0.5]
}
scale <1000000*ft, 500000*ft, 750000*ft>*10
/* rotate y*-25
translate <0, (28.0*(5280*ft))-(70000*ft), 0>*/
}
}
/* ! ---- End Sky Media ---- ! */
#end
#end
/* !---- Beginning of Scene ----! */
#declare River_Rock =
texture {
pigment {
agate
turbulence 0.8
color_map {
[0.0, 0.25 color rgbf <0.349019, 0.082352, 0.27843, 0.1>
color rgbf <0.419607, 0.0, 0.188235, 0.1> ]
[0.25, 0.5 color rgbf <0.349019, 0.0, 0.188235, 0.1>
color rgbf <0.45, 0.0, 0.1875, 0.1> ]
[0.5, 0.75 color rgbf <0.45, 0.0, 0.1875, 0.1>
color rgbf <0.45, 0.1875, 0.25, 0.1> ]
[0.75, 1.0 color rgbf <0.45, 0.1875, 0.25, 0.1>
color rgbf <0.875, 0.875, 0.875, 0.1> ]
}
}
finish { reflection 0.00390625 ambient 0.1 diffuse 0.03125 phong 0.25
phong_size 0.0625 }
}
#declare SandStone =
texture {
pigment {
granite
turbulence 1.5
color_map {
[0.0 color rgbf <0.5, 0.0, 0.0, 0.1> ]
[0.0 color rgbf <0.875, 0.875, 0.875, 0.1> ]
}
scale 0.0155125
}
normal { wrinkles 1 sine_wave scale 0.1875 }
}
#declare f_Cobble =
function {
pigment {
image_map {
tga "Cobblestone.tga"
map_type 0
interpolate 2
}
rotate 90*x
scale <6.0*ft, 1.0, 6.0*ft>
translate <-3.0*ft, 0.0, -3.0*ft>
}
}
object {
union {
difference {
plane { y, 0 }
box { <-225.0*ft, -2.0, -125.0*ft> <225.0*ft, 0.0, 125.0*ft> }
}
isosurface {
function { y - f_Cobble(x,y,z).red*0.25 }
max_gradient 4
threshold 0
contained_by { box { <-225.0*ft, -2.0, -125.0*ft> <225.0*ft, 0.25,
125.0*ft> } }
max_trace 4
}
}
texture {
gradient y
texture_map {
[0.0 pigment { White } normal { granite 1 scale 0.001 } ]
[0.0625 pigment { White } normal { granite 1 scale 0.001 } ]
[0.078125 River_Rock ]
[1.0 River_Rock ]
}
}
photons { target reflection on refraction on }
}
object {
union {
box { <-225.0*ft, 0.0, 75.0*ft> <-15.0*ft, 15.0*ft, 125.0*ft> }
box { <225.0*ft, 0.0, 75.0*ft> <15.0*ft, 15.0*ft, 125.0*ft> }
box { <-75.0*ft, 0.0, 60.0*ft> <-125.0*ft, 15.0*ft, -60.0*ft> }
box { <75.0*ft, 0.0, 60.0*ft> <125.0*ft, 15.0*ft, -60.0*ft> }
difference {
box { <-15.0*ft, 0.0, 120.0*ft> <15.0*ft, 15.0*ft, 125.0*ft> }
box { <-5.0*ft, -0.015625, 119.96875*ft> <5.0*ft, 6.0*ft,
125.03125*ft> }
cylinder { <0.0, 6.0*ft, 119.96875*ft> <0.0, 6.0*ft, 125.03125*ft>
5.0*ft }
}
}
pigment { White*0.875 }
finish { reflection 0.001 ambient 0.1 diffuse 0.03125 phong 0.25
phong_size 0.0625 }
photons { target reflection on refraction on }
}
object {
union {
object { Basin }
object { Capital translate 9.0*ft*y }
#local fA = 0 ;
#while(fA < 360)
object { Column translate <0.0, 0.0, 6.125*ft> rotate fA*y }
object { FCavityGrille translate 5.75*y rotate fA*y }
#local fA = fA + 72.0 ;
#end
}
#if(Tex)
pigment { Ivy_Marble scale 4 }
finish { ambient 0.4 roughness 0.05 diffuse 0.6 reflection 0.01 }
#else
pigment { White }
#end
photons { target reflection on refraction on }
}
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