Am 20.08.2017 um 16:08 schrieb Mr:
> clipka <ano### [at] anonymousorg> wrote:
>> Am 16.08.2017 um 01:15 schrieb Mr:
>>> clipka <ano### [at] anonymousorg> wrote:
>>>> Am 10.08.2017 um 15:15 schrieb bgimeno:
>>>>>
>>>>> Well, at the moment I can't see any exit to the limits that the syntax
>>>>> of blob in pov-ray imposes. I have not achieved anything acceptable,
>>>>> except a certain resentment against those sticky forms.
>>>>
>>>> POV-Ray's blobs are indeed currently too limited to do that job. You'd
>>>> need to resort to isosurfaces for that purpose.
>>>
>>> Except an isosurface cube probably won't merge with a blob yet, will it?
>>
>> No, but the other way round is now possible: A blob can be turned into a
>> `potential` pattern, a pattern can be turned into a function, and a
>> function can be combined with other isosurface functions such as that of
>> a "blob box" isosurface.
> 
> Every blob converted to a function... Why not have povray do it all the time
> under the hood so that these two types of entities get compatible with
> eachother?

In their native form, blobs are more efficient as they can use internal
bounding to reduce the terms of the function that actually need to be
evaluated.

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clipka <ano### [at] anonymousorg> wrote:
> Am 20.08.2017 um 16:08 schrieb Mr:
> > clipka <ano### [at] anonymousorg> wrote:
> >> Am 16.08.2017 um 01:15 schrieb Mr:
> >>> clipka <ano### [at] anonymousorg> wrote:
> >>>> Am 10.08.2017 um 15:15 schrieb bgimeno:
> >>>>>
> >>>>> Well, at the moment I can't see any exit to the limits that the syntax
> >>>>> of blob in pov-ray imposes. I have not achieved anything acceptable,
> >>>>> except a certain resentment against those sticky forms.
> >>>>
> >>>> POV-Ray's blobs are indeed currently too limited to do that job. You'd
> >>>> need to resort to isosurfaces for that purpose.
> >>>
> >>> Except an isosurface cube probably won't merge with a blob yet, will it?
> >>
> >> No, but the other way round is now possible: A blob can be turned into a
> >> `potential` pattern, a pattern can be turned into a function, and a
> >> function can be combined with other isosurface functions such as that of
> >> a "blob box" isosurface.
> >
> > Every blob converted to a function... Why not have povray do it all the time
> > under the hood so that these two types of entities get compatible with
> > eachother?
>
> In their native form, blobs are more efficient as they can use internal
> bounding to reduce the terms of the function that actually need to be
> evaluated.

If you just want cubes with rounded corners, have a look at:

http://www.john-greenwood.co.uk/PovRay/Rounded_Objects/Basics.html

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