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Tsk! tsk! Nathan....
I had to cancel my previous post concerning a revamped test file I put
together (binary upload), so here it is now in "text" form:
// surface-normal test scene for POV-Ray 3.1
// note: transparency, reflection, refraction, and inverse surface-normal
// are all changeable to see effect each has. Try each and every different
// combination to see varying results.
// 98.91
/* vary amounts here [0,1,2] */
//0 = no transparency, 1 = half, 2 = full (most control over reflection?)
#declare FT = 1;
//0 = no reflection, 1 = half, 2 = full (does not have complete control)
#declare RN = 1;
//0 = reflection_exponent 0, 1 = 0.5, 2 = 1.0 (makes big difference)
#declare RE = 1;
/* turn things on or off here [0,1] */
//0 = no refraction, >0 = ior 1.3 (obvious change)
#declare IR = 1;
//0 = no inverse, >0 = inverse (with this used render speeds up)
#declare IN = 1;
/* test scene below */
//transparency used (both filter and transmit)
#switch (FT)
#case (2)
#declare FT=1;
#break
#case (1)
#declare FT=.5;
#break
#case (0)
#declare FT=0;
#break
#end
camera { location <0,25,-60> angle 67 look_at 0 }
light_source {
<10,50,-25>
color rgb 1
}
// green to red
#declare GradientX =
pigment { gradient x
color_map {
[0 rgb<0,1,0>]
[1 rgb<1,0,0>]
} scale 2
translate -x
}
// sky sphere is green at left and red at right, gray at top
sky_sphere {
pigment { GradientX }
pigment{ gradient y
pigment_map {
[0 GradientX]
[1 color rgb .5]
}}
}
// hexagon textured plane 10 units below zero plane
plane{
y,-10
texture {
pigment {
hexagon
color rgb<1,1,0>
color rgb<0,1,1>
color rgb<1,0,1>
}
scale 10
}
finish { ambient .5 }
}
// test plane 1 unit above zero plane
plane {
y, 1
texture {
pigment { color rgbft<.5,.5,.5,FT,FT> }
normal { wrinkles .5 scale 1 triangle_wave }
finish { ambient .1 diffuse .6 phong .5 phong_size 100 specular 1
roughness .01
#switch (RN)
#case (2)
reflection 1
#break
#case (1)
reflection .5
#break
#case (0)
reflection 0
#break
#end
#switch (RE)
#case (2)
reflection_exponent 1
#break
#case (1)
reflection_exponent .5
#break
#case (0)
reflection_exponent 0
#break
#end
}
}
#if (IR>0)
interior {ior 1.3 }
#end
#if (IN>0)
inverse //surface normal flip
#end
scale 10
}
union {
sphere {0,2
texture {
pigment { color rgbft<.5,.5,.5,FT,FT> }
normal { wrinkles .5 scale .5 triangle_wave }
finish { ambient .1 diffuse .6 phong .5 phong_size 100 specular 1
roughness .01
#switch (RN)
#case (2)
reflection 1
#break
#case (1)
reflection .5
#break
#case (0)
reflection 0
#break
#end
#switch (RE)
#case (2)
reflection_exponent 1
#break
#case (1)
reflection_exponent .5
#break
#case (0)
reflection_exponent 0
#break
#end
}
}
#if (IR>0)
interior {ior 1.3 }
#end
#if (IN>0)
inverse //surface normal flip
#end
}
sphere {0,1.5
texture {
pigment {
hexagon
color rgb<1,1,0>
color rgb<0,1,1>
color rgb<1,0,1>
}
scale .5
}
finish { ambient .5 }
}
scale 7.5 translate <-12.5,10,-5>
}
union {
cone {-2*y,2,2*y,0
texture {
pigment { color rgbft<.5,.5,.5,FT,FT> }
normal { wrinkles .5 scale .5 triangle_wave }
finish { ambient .1 diffuse .6 phong .5 phong_size 100 specular 1
roughness .01
#switch (RN)
#case (2)
reflection 1
#break
#case (1)
reflection .5
#break
#case (0)
reflection 0
#break
#end
#switch (RE)
#case (2)
reflection_exponent 1
#break
#case (1)
reflection_exponent .5
#break
#case (0)
reflection_exponent 0
#break
#end
}
}
#if (IR>0)
interior {ior 1.3 }
#end
#if (IN>0)
inverse //surface normal flip
#end
}
cone {-1.5*y,1.5,1.5*y,0
texture {
pigment {
hexagon
color rgb<1,1,0>
color rgb<0,1,1>
color rgb<1,0,1>
}
scale .5
}
finish { ambient .5 }
}
scale 7.5 translate <12.5,10,-5>
}
//END
Message <366358C7.543EDEEB@Kopp.com>, Nathan Kopp typed...
>
>
>Here's a scene that demonstrates a reflection bug in POV (goes along with an
>image posted in povray.images).
>
>-Nathan
--
omniVERSE: beyond the universe
http://members.aol.com/inversez/POVring.html
=Bob
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