Helmut,
This seems like a great leap forward, blending is definitely a major
bottleneck -- thanks for your efforts.
While your results are tremendous, I guess I'm confused about whether
it is your new algorithm or the PS3 that is responsible; I suspect its
mostly the algorithm. If I understood your comment later in this
thread, the bottleneck in your system is I/O speed, capped at about 30
MB/s. Disks speeds of 80-120 MB/s are fairly easy to attain on a
modern PC (and up to 800 MB/s are possible), and with Flash or RAM
disks seek times are very low. So even though the PS3 processor is 3-
10 times faster than a modern PC, maybe faster disks speeds would
offset some or all of that? Is it possible to try your code on a linux
or Windows PC? Or looking at it the other way around, has anyone tried
to benchmark Enblend or Smartblend on a PS3 vs. PC to assess the
performance advantage due to the PS3's processor?
Thanks,
Matt
--- In #removed#, "Helmut Dersch" <der@...> wrote:
>
> We are now at 22min for Bernhard Vogl's 345-image gigapixel-benchmark,
> almost a factor of 4 faster than the next in line, and another
> factor of two faster than the first prototype. This is not
> much more than the time required to read and write the images:
> warping & blending is almost done on-the-fly.
>
> You can now download and test a limited preview of the program
> for testing:
> <http://www.hs-furtwangen.de/~dersch/PTStitcherNG0.1a.tar.gz>.
> Read the documentation at
> <http://www.hs-furtwangen.de/~dersch/Readme.PTStitcherNG0.1a>.
>
>
> Regards
>
> Helmut Dersch
>
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