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On 29-5-2019 7:48, Le_Forgeron wrote:
> Le 28/05/2019 à 22:45, Bald Eagle a écrit :
>>
>> Mike Horvath <mik### [at] gmail com> wrote:
>>
>>> What is an inverse sphere?
>>
>> It's a spherical cavity inside the [solid] infinite POV-Ray space.
>>
>> A solid sphere's inverse.
>>
>
> and for the code oriented, it looks like:
>
> sphere { 0, 1e+5 inverse ...
>
alternatively, although less elegant: sphere {0, 1e+5 hollow ...} gives
the same result.
--
Thomas
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