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Spiral Mosaic



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=651

A circle orbit trap applied to a Julia fractal based on the equation z = Sinh(z*Asinh(c)).

Created with the Fractal Science Kit.

Key Links:

  Main page: http://www.fractalsciencekit.com/index.htm
  Fractal Gallery: http://www.fractalsciencekit.com/gallery/gallery.htm
  Fractal Tutorials: http://www.fractalsciencekit.com/tutorial/intro.htm
  Fractal Examples: http://www.fractalsciencekit.com/tutorial/examples/examples.htm

Enjoy,

Ross Hilbert
hilbert@fractalsciencekit.com

Thanks Paul. This image took 9.81 minutes on my 1.8 GHz Pentium 4 with 1 GB RAM. I need a new machine :-). It is 1,050 x 700 pixels, with 3x3 oversampling for a total of 3,150 x 2,100 sampled points. Lanczos anti-aliasing is applied using a 9x9 kernel. If I turn off oversampling/anti-aliasing and turn on 4x4 solid guessing, it takes 1.05 minutes but of course the image quality is far less.

Ross

An update:

I upgraded my machine to a 2.67 GHz Intel i7-920 CPU with 6 GB RAM running Windows Vista SP2! Here are the new statistics.

1,050 x 700 pixels, with 3x3 oversampling for a total of 3,150 x 2,100 sampled points: 2.44 minutes
1,050 x 700 pixels, with 2x2 oversampling for a total of 2,100 x 1,400 sampled points: 1.10 minutes
1,050 x 700 pixels, with no oversampling and 4x4 solid guessing on: 16 seconds

Ross