POV-Ray : Newsgroups : povray.binaries.images : Repeating crackle : Re: Repeating crackle Server Time
7 Nov 2024 09:26:21 EST (-0500)
  Re: Repeating crackle  
From: William F Pokorny
Date: 10 Mar 2016 07:13:13
Message: <56e164d9$1@news.povray.org>
On 03/09/2016 03:35 PM, Le_Forgeron wrote:
> Le 09/03/2016 14:47, William F Pokorny a écrit :
>>
>> I wish for a definable voronoi-seed points extension to crackle too...
>> Something like Jérôme's voronoi patch, but as part of the crackle pattern itself.
:-)
>>
>
> Thank you for interesting me again in crackle-like pattern.
>
> There is plenty of things about crackle that I had forgotten, like form, metric,
offset and solid.
> voronoi and masonry are only very specialised versions in this regard, as they apply
*solid* implicitly.
>
> A non-solid voronoi, with support of form, metric and offset... mmmhhh, need a name
for it.
>
> And may be a variation of voronoi with support of metric (form and solid seems
opposite, and offset seems useless).
>

I have myself used metric, form and solid from crackle, but I've never 
found a use for offset (Has anyone else?). Not quite sure with just a 
sip or two of coffee if I completely follow your form and solid being 
opposites statement...

I also frequently use the wave modifiers with crackle - turbulence, 
poly_wave etc. Given we'd control the point set we could implement 
turbulence to a regular point set ourselves, but having built in 
turbulence would certainly be handy. poly_wave, etc, I think would need 
to be inbuilt.

I had some ideas for metric too - that might apply to crackle as well. 
Let me dig into some old work with crackle this morning to refresh 
crackle in my own mind. I'll follow up with another post in a while.

Aside: Christoph, with the new repeat keyword, has - at least to some 
extent - addressed one of the things I wished for from definable voronoi 
point sets. I was thinking with control of the points, I could mirror 
the point set environments myself around the crackle pattern I wished to 
tile. Suppose this suggests a repeat keyword for any new 
non-solid-voronoi pattern would be handy, if not absolutely needed. :-)

Bill P.


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