2009-11-15

The Mandelbulb a 3D Mandelbrot Set

clipped from en.wikipedia.org
Fractal
A fractal is "a rough or fragmented geometric shape that can be split into parts, each of which is (at least approximately) a reduced-size copy of the whole,"[1] a property called self-similarity.

The Mandelbrot set is a famous example of a fractal

clipped from en.wikipedia.org
Mandelbrot set
The Mandelbrot set is self-similar under magnification [...]
Zoom animation
Regardless of the extent to which one zooms in on a Mandelbrot set, there is always additional detail to see.
Mandelbrot color zoom.gif
clipped from www.youtube.com

Exterminate - Mandelbrot Fractal Zoom Music Video

clipped from www.skytopia.com


The Real 3D Mandelbulb

It's found by following a relatively simple math formula. But in the end, it's still only 2D and flat - there's no depth, shadows, perspective, or light sourcing. What we have featured in this article is a potential 3D version of the same fractal.

Resulting renders

But it wasn't until I incorporated proper shadowing that the subtleties of this incredible object became apparent. For the renders below and exploration afterwards,

blog it
clipped from www.skytopia.com
Further exploration of the 3D Mandelbulb

What does it look like on the inside?

Any interesting analogues to the 2D Mandelbrot set?


A 3D Mandelbrot stalk (a deep zoom inside the Bulb)

A 2D Mandelbrot stalk

A 3D Mandelbulb spiral (found at a deeper zoom inside the "Ice Cream from Uranus" picture). Click to enlarge, and see this page of the thread for how it was found.

A 2D Mandelbrot spiral

Are gorgeous flyovers and parallax zooms now possible?

clipped from www.youtube.com

Mandelbulb zoom

A zoom into the 3D mandelbulb (split in half), with full light sourcing. Enjoy.

clipped from www.youtube.com

3D Mandelbulb mountain cross sections

Over 1000 cross sections of a zoomed in section from the 3D Mandelbulb. Observe the absurdly ornate detail within. This took around a couple of days to render.


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Sources:
  1. Fractal - Wikipedia, the free encyclopedia
  2. Mandelbrot set - Wikipedia, the free encyclopedia
  3. YouTube - Exterminate - Mandelbrot Fractal Zoom Music Video
  4. Mandelbulb: The Unravelling of the Real 3D Mandelbrot Fractal
  5. The Unravelling of the Real 3D Mandelbrot Fractal
  6. YouTube - mandelbulb zoom
  7. YouTube - 3D Mandelbulb mountain cross sections
Related:
  1. Welcome - True 3D mandelbrot type fractal
  2. Patterns of Visual Math - Mandelbrot Set
  3. Skytopia - Mystery of the Real 3D Mandelbrot Fractal