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I'm trying to make a sphere filled with a radial effect. I used media as
show with the following code, but I still have several problems:
- Too much transparent (if render over a checkered wall ou image map box)
- When rendered over a white or almost white background the effect
dissapear.
What shoul I do?
Is emitting media the right solution?
Is media the right solution?
background { rgb 0.5 }
camera { // Camera Camera01
location < -226.851, -3106.107, 176.680>
direction < 0.0, 0.0, 1.2973> // Aperture is 0.74
degrees
sky < 0.00000, 0.00000, 1.00000> // Use right
handed-system
up < 0.0, 0.0, 1.0> // Where Z is up
right < 1.49800, 0.0, 0.0> // Aspect ratio
look_at < -207.691, 2133.474, 408.256>
}
light_source { // Light001
<-1850.778, -1260.786, 523.438>
color rgb <1.000, 1.000, 1.000>*1
}
sphere {<0,0,0>,1
material{
pigment{rgbf <1,1,1,1>}
finish{ambient 1.0 diffuse 0.0}
}
interior{
media{
intervals 5
samples 1,5
confidence 0.9999
variance 1.0/1000
ratio 0.9
emission rgb <0.003, 0.001, 0>
density{
cylindrical
color_map
{
[ 0.0 rgbft <0, 0, 0, 0, 0> ]
[ 0.2 rgbft <0.45, 0.45, 0.45, 0,
0> ]
[ 1.0 rgbft <0.9, 0.9, 0.9, 0, 0> ]
}
}
}
}
}
hollow
scale <260, 260, 400.0>
}
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> I'm trying to make a sphere filled with a radial effect. I used media as
> show with the following code, but I still have several problems:
> - Too much transparent (if render over a checkered wall ou image map box)
> - When rendered over a white or almost white background the effect
> dissapear.
[...]
> media{
> intervals 5
> samples 1,5
> confidence 0.9999
> variance 1.0/1000
> ratio 0.9
> emission rgb <0.003, 0.001, 0>
> density{
> cylindrical
> color_map
> {
> [ 0.0 rgbft <0, 0, 0, 0, 0> ]
> [ 0.2 rgbft <0.45, 0.45, 0.45, 0,
> 0> ]
> [ 1.0 rgbft <0.9, 0.9, 0.9, 0, 0> ]
> }
> }
> }
Just a guess without trying out your code:
Increase the the density values to numbers greater than 1. Say 4.5 and 9
instead of 0.45 and 0.9.
I hope this helps.
Thomas
--
http://www.fmi.uni-konstanz.de/~willhalm
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