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File:Mandelbrot sequence new.webm

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Mandelbrot_sequence_new.webm (WebM audio/video file, VP8, length 48 s, 320 × 240 pixels, 206 kbps overall, file size: 1.17 MB)

Summary

Description
English: Used Zom-B's library with my own code and a golden gradient (similar to the default gradient used in Ultra Fractal). Each scene is 6x supersampled to remove sharp edges. Took... a while to render

Links to Java source code: Zom-B version project directory containing DoubleDouble class, adjustments made by Simpsons Contributor to keep max iteration and anti-aliasing factor at more conservative values for faster rendering. New golden gradient added. Includes animated gif encoder.

Zom-B version

Mandelbrot zoom with center at (-0.743643887037158704752191506114774, 0.131825904205311970493132056385139) and magnification 1 .. 3.18 × 1031 created using my own Java program, using:

  • Double-double precision (self-written library),
  • Adaptive maxiter depending on the inverse square root of the magnification
  • Adaptive per-pixel antialiasing strength depending on the maximum iteration of nearby pixels (15x AA max), (during antialiasing phase, maxiter is quadrupled),
  • Iteration smoothing,
  • New warm gradient which also gives clearer details, applied to the base-2 log of the smoothed iteration number,
  • Modified periodicity checking algorithm from Fractint, for significant speedup,
  • Main cardioid and period-2 bulb checking for another speedup,
  • Multi-threaded calculation
  • 136 hours calculation time on two PC's (6 cores combined)
Date 27 January 2010 (original upload date) WebM conversion 7 May 2015
Source Transferred from en.wikipedia to Commons by Franklin.vp using CommonsHelper.
Author Simpsons contributor at English Wikipedia. WebM conversion by Nick Birse
Other versions
  • 640×480 pixels, 3× supersampled, 82.83 MB
    640×480 pixels, 3× supersampled, 82.83 MB
  • Still image from this animation
    Still image from this animation

Licensing

Public domain This work has been released into the public domain by its author, Simpsons contributor at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Simpsons contributor grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2010-01-27 19:40 Simpsons contributor 320×240× (24785806 bytes) Larger.
  • 2009-05-06 17:17 Zom-B 180×135× (10382989 bytes) Mandelbrot zoom with center at (-0.743643887037158704752191506114774, 0.131825904205311970493132056385139) and magnification 1 .. 1{{e|30}} created using my own Java program, using: *[[http://en.wikipedia.org/wiki/Talk:Floating_point#No_mention_of_Double-
  • 2008-09-21 19:40 Simpsons contributor 180×135× (4778226 bytes)
  • 2008-09-21 19:30 Simpsons contributor 180×135× (777581 bytes) Mandelbrot zoom sequence
  • 2008-08-31 13:44 Simpsons contributor 256×192× (7234937 bytes) Self made with Java. See userpage for source code.

Captions

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Items portrayed in this file

depicts

Fractal zoom

inception

27 January 2010

File history

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Date/TimeThumbnailDimensionsUserComment
current10:14, 7 May 201548 s, 320 × 240 (1.17 MB)Nick{{Information |Description={{en|Used Zom-B's library with my own code and a golden gradient (similar to the default gradient used in Ultra Fractal). Each scene is 6x supersampled to remove sharp edges. Took... '''a while''' to render Links to Java sou...
No pages on the English Wikipedia use this file (pages on other projects are not listed).
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