Dear PoVRay gurus
I would like to render a picture of object (protein)
with a depth cueing. Simple z-oriented ground fog does
not work because if the fog distance is too small the
picture is almost white and when it is large there is
almost no depth-cueing efect. I tried hollow box with
interior fading and this works well with black
background:
box {
  <-30, -30, -30>
  < 30,  30,  30>
  texture {pigment {color rgbft <0,0,0,0,1>}}
  hollow interior {fade_power 2 fade_distance 7 fade_color Black }
}
The size of the box is set to approx. fit the object.
I would like to do the same with white background and
white fog but changing the background, fade_color and
pigment color to white causes that there is no depth
cueing. Is it possible to use this with white colour?
Is there any other solution?
Thanks
Vojtech Spiwok
Dept. of Biochem. and Microbiol.
ICT in Prague
Prague
Czech Republic

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