> The image shows 2 fewer hues than the dispersion_samples value.
> 
> The first image shows the setup I used for testing.  The wall near the 
> camera casts a shadow on the screen for contrast.
> 
> The second image is the actual test.  The numbers 3 through 10 are the 
> values of dispersion_samples for the pair of prisms above each.  The 
> prisms in the top row cast a narrow slit of photons onto the screen 
> right below the numbers.  The prisms in the lower row refract the white 
> line near the bottom.
> 
> I'm using version 3.6.2 (32-bit), but I've noticed the problem in 
> earlier versions.  My OS is Windows XP 2002 Media Center Edition SP3.
> 
> 
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> 
> 
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> 
I'm not realy sure, but maybe that the first sample is in the infra red 
and the last in the ultra violet range...


Alain

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