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You will want something like that:
#version unofficial megapov 0.7
#include "colors.inc"
#include "glass.inc"
global_settings{
max_trace_level 100
adc_bailout 1/32
photons{
count 20000
autostop 0
jitter .4
}
}
camera{
location <0,10,-10>
look_at <0,2,0>
angle 30
}
light_source{<10,100,0>
color White
spotlight
radius 2
falloff 2.1
point_at <0,2,0>
// or use the following for a cylindrical light, but gets somehow too
bright
/*cylinder
radius 10
falloff 15
point_at <0,2,0>*/
}
plane{y,0
pigment{Red}}
// this is acutally not a realistical lens but just a scaled sphere
// - you will probably want to use an intersection between two spheres
sphere{<0,0,0>,1
scale <1,0.05,1>
rotate z*-40
translate <0,2,0>
texture{T_Glass3}
interior{I_Glass}
photons{
target
reflection off
refraction on
ignore_photons
}
}
// EOF
Note that it *requires* the unofficial version 'MegaPOV'. I guess you
already got it but in case you do not go to
http://nathan.kopp.com/patched.htm
- Micha
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