Title: SurfBox - another cool Mandelbox variant Post by: DarkBeam on February 08, 2017, 05:27:07 PM I hand-drawn a strange function that I thought could be cool for experimenting with mutations of ABox.
The modification effect is neaty and deserves more deep looking. Let me show you how it works, just a little tricky formula that adds a fold that will trigger after the normal folding limit to work like an abs() - so the result is something that stays on borderline between Amazing Surf and the old Box! Code: // Mixed fold by Luca 2016. If foldMod = 0, you disable the fold of the corresponding axis. Nice to create curly surfaces aka amazing surf ;D Conversely if foldMod tends to infinity, you get Tglad's fold. I found that 2000 can be enough. If foldMod = 2*fold, you get the perfect Mixed Folding, simulating abs() and fold at the same time. If foldMod = 4*fold, you get a double folding just like doing fold twice. Images on next post. :beer: Title: Re: SurfBox - another cool Mandelbox variant Post by: DarkBeam on February 08, 2017, 05:39:01 PM (http://orig04.deviantart.net/fad3/f/2017/039/7/b/surfbox_by_dark_beam-dayblet.png)
The standard Amazing Box, but with modified folding with value 2. Strange features are already visible in MSet! :D Title: Re: SurfBox - another cool Mandelbox variant Post by: DarkBeam on February 08, 2017, 05:49:15 PM Julia set of coords (0.3333333 ;0.3333333 ; 2) - a point on the critical square. A Julia of a normal ABox of that location looks like a solid cube, nothing else. Like the previous image, this is with all parameters as in the original first Tglad's Abox... minr=0.5 fold=1 scale = 2.
All the parts of this julia are infinitely thin, like Amazing Surfaces. But this formula also has solid parts making it really versatile ... ;) (http://img12.deviantart.net/f403/i/2017/039/1/c/juliasurfi_by_dark_beam-daybmah.png) Title: Re: SurfBox - another cool Mandelbox variant Post by: KRAFTWERK on February 08, 2017, 06:35:49 PM Hmmmm, looks promising... Great idea Luca! :beer: O0
Title: Re: SurfBox - another cool Mandelbox variant Post by: DarkBeam on February 08, 2017, 06:51:57 PM Thanks Johan, this formula hides many wonders :) :music:
Title: Re: SurfBox - another cool Mandelbox variant Post by: mclarekin on February 09, 2017, 04:17:34 AM Looks fast :) :beer: :beer: :beer:
I recognize that smooth spheric zone :0 (http://www.fractalforums.com/index.php?action-gallery;sa=view;id=19328) http://www.fractalforums.com/index.php?action=gallery;sa=view;id=19328 (http://www.fractalforums.com/index.php?action=gallery;sa=view;id=19328) Title: Re: SurfBox - another cool Mandelbox variant Post by: mclarekin on March 29, 2017, 09:39:45 AM @ DarkBeam
Can you remember if this fold looks like the yellow line on the chart. So inside the fold limits - no change, then there is a transition , then an offset = foldModX?? Title: Re: SurfBox - another cool Mandelbox variant Post by: DarkBeam on March 29, 2017, 04:53:37 PM Hello! No, my fold is conformal, no angle changes, only sign change in derivates. :) By the way, yes inside the folds nothing happens... Then Tglad fold (without changing the angle, so 1st angle sign inversion), then the derivate changes sign after a while, keeping continuity :dink:
Title: Re: SurfBox - another cool Mandelbox variant Post by: mclarekin on March 30, 2017, 10:06:26 AM Fortunately Buddhi always assures me there is no such thing as a stupid question, otherwise :hmh: :-. If i had bothered to re-read the post instead of just copying the code and making some guesses I would have realized I was way off :) I assumed cfg was the abbreviation for "confusing" lol. I will have another go and see what i get. Cheers |