On 9-10-2015 21:56, clipka wrote:
> Am 09.10.2015 um 08:58 schrieb Thomas de Groot:
>> On 8-10-2015 22:56, Jörg 'Yadgar' Bleimann wrote:
>>> What do I wrong? Should I try absorbing media instead?
>>>
>>
>> You certainly might. I am not sure about the physics of glass but maybe
>> it is a combination of scattering and absorption you need?
>
> Nope.
>
> There's virtually no scattering in modern regular glass - except maybe
> for some dirt on the surface, but that's obviously not some interior effect.
>
> Ancient glass did often have impurities that would scatter light, but as
> a result the material would appear misty or even opaque at reasonable
> thickness (because that's what scattering ultimately does to a medium).
>
Ah! Thanks for answering my cancelled post. ;-) I thought mine 
irrelevant after I discovered you had a much better option to give.

-- 
Thomas

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