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Author Topic: Brute RotJulia  (Read 723 times)
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Kali
Fractal Supremo
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Posts: 1138


« on: October 01, 2012, 07:38:29 AM »

Brute RotJulia



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=12456



A Julia rotated on 3D space at each iteration, rendered with Fragmentarium's new brute-force raytracer: http://www.fractalforums.com/3d-fractal-generation/rendering-3d-fractals-without-distance-estimators/

It can't do large renders, but it's excelent for trying out formulas without using a distance estimator, something I always wanted to have. Also it works fast enough for interactive parameter tweaking.

Thanks Syntopia!!
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matsoljare
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WWW
« Reply #1 on: October 01, 2012, 08:03:22 PM »

Wow, that's absolutely amazing! More of this formula, please!  afro
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Kali
Fractal Supremo
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Posts: 1138


« Reply #2 on: October 02, 2012, 01:08:55 AM »

Wow, that's absolutely amazing! More of this formula, please!  afro

Thanks... I'll try to explain:

At every iteration, I take x and y coordinates as real and imaginary parts of a complex number, the same you do in 2D. I square the number as in a standard Julia, but then I apply a 3D rotation before adding julia constants. That's it.

In the last version I'm testing, the julia constants are also rotated, and I added a scaling factor that helps into finding interesting shapes. 

« Last Edit: October 02, 2012, 01:16:08 AM by Kali » Logged

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