Ha Wikipedia has an Open CL FFT implementation on their main OpenCL
article:
http://en.wikipedia.org/wiki/OpenCL
Now if I had an OpenCL Capable GPU id try it out :)
On Sep 17, 2009, at 8:10 PM, Chris Wood wrote:
Here's a good challenge: fourier transform an image inside QC.
Preferably at decent speed. Including a quick filter of some sort,
and the inverse transform to get the image back.
Can it be done in any sane way? Anyone tried it?
The FFT methods I've come across so far involve multiple passes on
the image, and swapping between two buffers.. I guess this might
possibly be doable using a CI filter and a bit of javascript magic
in the filter function. They also seem to need two output channels
for each input, which could be more of an issue.
The other option is to write a plugin, but that would be seriously
stretching my openGL skills a bit too far :)
Chris
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