home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Amiga MA Magazine 1998 #7
/
amigamamagazinepolishissue1998.iso
/
varia
/
povray3
/
povray3_040
/
pov3demo
/
demo
/
arealit2.pov
< prev
next >
Wrap
Text File
|
1997-12-12
|
2KB
|
91 lines
// Persistence Of Vision raytracer version 3.0 sample file.
// Illustrates how area light size affects soft shadows
// Left shadow - area_light <4,0,0>, <0,0,4>, 17, 17 (renders fastest)
// Middle shadow - area_light <8,0,0>, <0,0,8>, 17, 17
// Right shadow - area_light <16,0,0>, <0,0,16>, 17, 17 (renders slowest)
#version 3.0
global_settings { assumed_gamma 2.2 }
#include "colors.inc"
#include "textures.inc"
// A back wall to cast shadows onto
plane { -z, -20
pigment { Gray70 }
finish { Dull }
}
#declare SpacingX = 20
#declare Radius = 5
#declare LightX = 15
#declare LightY = 40
#declare LightZ = -40
#declare SRadius = 0
#declare SFalloff = 11
#declare SphereTexture = texture {
pigment { Red }
finish { Shiny }
}
sphere { <-SpacingX, 0, 0>, Radius
texture { SphereTexture }
}
light_source {
<0, LightY, LightZ> color White
area_light <4, 0, 0>, <0, 4, 0>, 17, 17
adaptive 0
jitter
spotlight
point_at <-SpacingX, 0, 0>
tightness 0
radius SRadius
falloff SFalloff
}
sphere { <0, 0, 0>, Radius
texture { SphereTexture }
}
light_source {
<0, LightY, LightZ> color White
area_light <8, 0, 0>, <0, 8, 0>, 17, 17
adaptive 0
jitter
spotlight
point_at <0, 0, 0>
tightness 0
radius SRadius
falloff SFalloff
}
sphere { <+SpacingX, 0, 0>, Radius
texture { SphereTexture }
}
light_source {
<0, LightY, LightZ> color White
area_light <16, 0, 0>, <0, 16, 0>, 17, 17
adaptive 0
jitter
spotlight
point_at <+SpacingX, 0, 0>
tightness 0
radius SRadius
falloff SFalloff
}
light_source { <0, -15, -120> color Gray10 }
camera {
location <0, -15, -120>
direction 2*z
look_at <0, -15, 0>
}