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Author Topic: Folding Menger  (Read 791 times)
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3dickulus
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« on: December 04, 2016, 01:42:26 AM »

Every once in a while I render something with Fragmentarium that makes me do a double take...

Origin: Knighty's Menger-Sphere.frag, Darkbeam's folding routine, Roquen's domain mashup

* MengerFolds_Files.zip (223.06 KB - downloaded 77 times.)
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Sabine
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« Reply #1 on: December 04, 2016, 12:15:21 PM »

Interesting combination, great results!
I'll have a closer look at your .frag, looks like great fun to explore, especially Roquen's domain mashup, completely new to me!
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #2 on: December 04, 2016, 01:31:33 PM »

Excuse me what is my folding routine? snore embarrass
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3dickulus
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« Reply #3 on: December 04, 2016, 05:23:06 PM »

from the fragment code attached to first post...
Code:
//DarkBeam's "fold"... reinterpreted... it's more than a fold, much more! Just awesome!
float DBFold(vec3 p, float fo, float g){
if(p.z>p.y) p.yz=p.zy;//Diagonal fold
//Tis is slightly different from the original fold in order to make it continuous in this context
float vx=p.x-2.*fo;
float vy=p.y-4.*fo;
  float v=max(abs(vx+fo)-fo,vy);
float v1=max(vx-g,p.y);
v=min(v,v1);
return min(v,p.x);
}
//the coordinates are pushed/pulled in parallel
vec3 DBFoldParallel(vec3 p, vec3 fo, vec3 g){
vec3 p1=p;
p.x=DBFold(p1,fo.x,g.x);
p.y=DBFold(p1.yzx,fo.y,g.y);
p.z=DBFold(p1.zxy,fo.z,g.z);
return p;
}
//serial version
vec3 DBFoldSerial(vec3 p, vec3 fo, vec3 g){
p.x=DBFold(p,fo.x,g.x);
p.y=DBFold(p.yzx,fo.y,g.y);
p.z=DBFold(p.zxy,fo.z,g.z);
return p;
}

more folding from 2013 sphereFold boxFold mengerFold octo?
    http://www.fractalforums.com/animations-showcase-(rate-my-short-animation)/the-art-of-folding-t18074/
    fragment attached @ the above animation link

« Last Edit: December 04, 2016, 05:38:55 PM by 3dickulus, Reason: links » Logged

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You will be illuminated!

                            #B^] https://en.wikibooks.org/wiki/Fractals/fragmentarium
3dickulus
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« Reply #4 on: December 04, 2016, 09:32:31 PM »

jff, this is a montage of the other presets in the fragment attached to first post...


* MF-thumbs.jpg (239.5 KB, 800x672 - viewed 99 times.)
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #5 on: December 04, 2016, 10:47:46 PM »

Now I remember thanks smiley
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