Am 27.05.2022 um 07:48 schrieb And:
> MichaelJF <fri### [at] t-onlinede> wrote:
>> Am 26.05.2022 um 11:27 schrieb And:
>>> MichaelJF <fri### [at] t-onlinede> wrote:
>>>> Simply, I could not resist;)
>>>>
>>>> isosurface {
>>>>       function { f_result2(x,y) }
>>>>       contained_by { sphere { <0,0,0>,5 } }
>>>>       threshold 0.75
>>>>       max_gradient 1000
>>>>       pigment { color Cyan }
>>>>
>>>>       rotate <60,0,0>
>>>>       scale 5
>>>> }
>>>>
>>>>
>>>> Since the functions given by And are constant in direction z, with an
>>>> isosurface the container will limit the functions in this direction. So,
>>>> I thought a sphere would look better than a box as container.
>>>>
>>>> Best regards
>>>> Michael
>>>
>>> This looks still planar mapping.
>>>
>> Sorry, but I have no idea, what "planar mapping" could mean.
>>
>> Best regards
>> Michael
> 
> 
> I mean it is not a spherical wrapping
> 
I can not understand your complaints. I put your two dimensional setting 
into an (three dimensional) isosurface, only. Nothing more. Where is the 
problem?

Best regards,
Michael

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