"s.day" <s.d### [at] uelacuk> wrote in message 
news:web.445bd02e77d0c546f1a899fd0@news.povray.org...
> "Marc" <nomail@nomail> wrote:
>> Hi,
>>
>> can anyone tell me whats wrong with this image, The water (which looks 
>> like
>> engine oil) is too dark, yet if i remove the glass It is the perfect 
>> color.
>> It doesn't matter if i turn photons on or off or seemingly anything i do 
>> has
>> no effect, i've attached the .pov file too, pls help!
>>
>> Marc
>
> It is to do with the small space you have between the water and the glass
> surfaces, the glass is differenced with 0.03 and water is set to size
> 0.02999 set the water to 0.03 as well and the effect will be better, you
> will also have to adjust the bottom surface of the water as you will have 
> a
> similar black effect there.
>
> Sean
>

Hi Guys,

I suspect it's better to set a higher  max_trace_level  in the global 
settings (setting it to 7 seems to cure the problem).
I reckon it would be safer to retain the size differences to avoid any 
potential problems with coincident surfaces.
I think that setting the sizes the same only 'cured' the problem as it 
brought the number of surfaces that the light passed through down to within 
the default setting for max_trace_level.

Regards,
Chris B.

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