I have tried to use the focus on Pov-Ray to have a real effect model with these settings:
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camera
{
location < 5.075224, 2.799448, 2.439671 >
up < 0.000000, 1.000000, 0.000000>
right < -1.330000, 0.000000, 0.000000>
look_at < 5.727645, 2.643875, 1.697950 >
angle 50
// focal_point <-6, 1, 30> // blue cylinder in focus
// focal_point < 0, 1, 0> // green box in focus
focal_point < 1, 1, -6> // pink sphere in focus
aperture 0.3 // 0.4 a nice compromise
// aperture 0.05 // almost everything is in focus
// aperture 1.5 // much blurring
// blur_samples 4 // fewer samples, faster to render
blur_samples 20 // more samples, higher quality image
}
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This is the result:
Without focus
There is a spotlight and one shadowless, and I have also tried radiosity, this is the setting used:
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light_source {<-34.6486, 14.7185, 39.1816> color rgb < .6 .6 .6 >
shadowless
}
light_source {<-0.916331, 164.739, -48.4716> color rgb < 1 1 1 >
spotlight
radius 5
falloff 7
tightness 10
point_at <14, 0, -7>
}
global_settings {
radiosity {
pretrace_start 0.08
pretrace_end 0.01
count 150
nearest_count 10
error_bound 0.5
recursion_limit 3
low_error_factor 0.5
gray_threshold 0.0
minimum_reuse 0.005
maximum_reuse 0.2
brightness .5
adc_bailout 0.005
}
}
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I hope this will be useful
Vic