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Author Topic: Buddhabrot animation using OpenCL  (Read 3893 times)
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amarzo
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« on: June 08, 2011, 01:01:40 PM »

It was rendered using OpenCL on two Teslas. I know, I know... what a waste of hardware but I wanted to test them.

The problem  is not very well suited for OpenCL but even without Metropoli-hasting the GPUs outperformed the CPU.

Here it is a link to more highres screenshots and to the source code (Java + LWJGL). http://www.infinityk.com/buddhabrot-rendered-using-opencl/

The first half of the video is kind of boring, only playing with the transfer functions. In the middle part I render only orbits which certain scape iterations, and in the last part a render of the low scape iterations orbit is shown (but changing the exponent value).

<a href="http://www.youtube.com/v/jnh53UYZGe8&rel=1&fs=1&hd=1" target="_blank">http://www.youtube.com/v/jnh53UYZGe8&rel=1&fs=1&hd=1</a>

« Last Edit: June 08, 2011, 01:03:45 PM by amarzo » Logged
ker2x
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« Reply #1 on: August 07, 2011, 11:18:09 PM »

awesome  love
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often times... there are other approaches which are kinda crappy until you put them in the context of parallel machines
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cKleinhuis
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« Reply #2 on: August 07, 2011, 11:28:51 PM »

to bad it morphes only halve of the video .. sad
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A Noniem
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« Reply #3 on: August 07, 2011, 11:34:48 PM »

"The problem  is not very well suited for OpenCL but even without Metropoli-hasting the GPUs outperformed the CPU."

Even my ati 4350 outperforms my cpu (athlon 64 x2) when it comes to opencl performance (with around a factor 3 in fractal renders), no wonder you can do the same trick with 2 tesla's. I'm currently on a opencl renderer as well, 2d fractals already work, hope to get the first mandelboxes out next week.
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