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Author Topic: Mandelbulb spirals  (Read 4540 times)
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Buddhi
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« on: December 01, 2009, 10:13:13 PM »
Mandelbulb cut on z = 0


http://www.fractalforums.com/gallery/?sa=view;id=1116

Full resolution: http://krzysztofmarczak.deviantart.com/art/Mandelbulb-spirals-145403596

Zoom: 10^5
Max. number of iterations: 120
Original resolution: 3840x2160
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Mandelbulber program: http://sourceforge.net/projects/mandelbulber/
kram1032
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« Reply #1 on: December 02, 2009, 12:54:53 AM »
whoa, a really nice thing cheesy
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Duncan C
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« Reply #2 on: December 03, 2009, 03:27:15 AM »
Quote from: Buddhi on December 01, 2009, 10:13:13 PM
Mandelbulb cut on z = 0

<Quoted Image Removed>
http://www.fractalforums.com/gallery/?sa=view;id=1116

Full resolution: http://krzysztofmarczak.deviantart.com/art/Mandelbulb-spirals-145403596

Zoom: 10^5
Max. number of iterations: 120
Original resolution: 3840x2160

Wow. That's really striking. How long did it take to render? And how much LONGER would it take if you rendered it at a higher iteration count, say 1000?


Duncan
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Duncan C
Buddhi
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« Reply #3 on: December 03, 2009, 06:00:45 PM »
I was about 5 hours. If I render it at 1000 iteration count it will take about 50 hours.
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and some fractal animations: http://www.youtube.com/user/xlace
Mandelbulber program: http://sourceforge.net/projects/mandelbulber/
Duncan C
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« Reply #4 on: December 03, 2009, 07:28:22 PM »
Quote from: Buddhi on December 03, 2009, 06:00:45 PM
I was about 5 hours. If I render it at 1000 iteration count it will take about 50 hours.

Really? It should only increase the calculation time by the percentage of pixels that actually have a higher iteration count. Looking at that plot, the region with a high iteration count is quite small. Most pixels should still bail out at a low iteration count even with max iterations set to a larger value.


Duncan
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Duncan C
Buddhi
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« Reply #5 on: December 03, 2009, 08:05:03 PM »
It will be true when my program don't have to calculate global illumination. Most of calculations of shaders operates on areas with nearly maximum iteration rate, because it have to analyse points very close to actually calculated point.
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Mandelbulber program: http://sourceforge.net/projects/mandelbulber/
Cyclops
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« Reply #6 on: December 06, 2009, 02:50:30 PM »
fabulous image,what program did you use?
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Sensitively dependant on initial conditions
Buddhi
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« Reply #7 on: December 06, 2009, 03:27:57 PM »
Quote from: Cyclops on December 06, 2009, 02:50:30 PM
fabulous image,what program did you use?
Thanks. I used my program written C++  (Eclipse SDK Linux x64)
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Mandelbulber program: http://sourceforge.net/projects/mandelbulber/
Nahee_Enterprises
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« Reply #8 on: January 11, 2010, 06:46:35 AM »
Quote from: Buddhi on December 01, 2009, 10:13:13 PM
Mandelbulb cut on z = 0
Zoom: 10^5
Max. number of iterations: 120
Original resolution: 3840x2160

I am still catching up on a few past images, and this one is really quite nice!!!    smiley
But, only in a few small areas, it seems to be "stretched" a bit in its perspective view.  Not all that noticeable, just caught my eye as seeming to be a little bit off.
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