PixelBender + Flash in Photoshop panel

Dear all,
I've posted something similar in Configurator forum with no
luck, so here I am with my question: any hint or comment will be
greatly appreciated.
Is it possible for a SWF that contains a PixelBender shader to
be embedded in a Photoshop CS4 panel?
I'd like to exploit some built-in function of Flash (like
blur and other filters) without the need to write custom code, and
build a complex PixelBender shader concatenating several pbj files:
the Photoshop panel should contain only the sliders of course, and
the effect have to be applied to the opened image. The Photoshop
panel developer's guide explains that, for the project to be
working and besides the swf, it's needed a javascript that
communicate with Photoshop through its DOM, and it seems that there
happens all the Photoshop commands. Currently I'm stuck and it
seems to me there's no way to make it works.
Why all this pain? Because it would mean to be able to have
complex shaders in form of sort-of-binary plugin-like easy to use
Photoshop panel; it would open a world of wonders.
Thanks in advance for any comment or thoughts
Davide Barranca
Bologna, Italy

Hi Davide,
I have to apologize. I misread your first email and
misunderstood what you were trying to achieve. I thought you were
simply asking whether you could use Pixel Bender filters in the
Panels at all (the answer to which I didn't know until I tried it
yesterday). I see now that you are trying to write your own
Photoshop filter with the Panel APIs.
I'm not sure what you want to achieve is possible with the
current Photoshop panel model, and even if it is possible, I don't
think it will be very fast. The Photoshop Panel functionality is to
provide an easy way to add a new workflow UI to Photoshop, but I
don't think it was intended to add new image processing features to
Photoshop. In general, if you are adding any new image processing
to Photoshop, you have to go through the Photoshop Plug-in SDK. I
did look at the documentation for the Panel API. I'm no expert on
Photoshop scripting, but it looks like the exported properties of
the DOM are purely descriptive with little chance to access the
actual data. The only bit of promise is to use the ColorSampler
tool to pull the image data from the foreground window, but that
would be extremely painful and very slow. Even if that did work, I
didn't see any way to actually update the pixels in the document.
That being said, I believe there might be an indirect way to
achieve what you are trying to do. The basic workflow would be:
1. Use Panel API + Javascript to have Photoshop write out the
image to a known location
2. Load the image from the saved location in the SWF
3. Process the image in the SWF
4. Save the resultant image back out to the file
5. Use the Panel API + Javascript to have Photoshop load the
file
I'm not 100% sure that this will work, and it definitely does
have some side effects like leaving an image on disk and opening up
another document in Photoshop for the results. But, I believe it
will do the job. I'll see if I can whip up a tutorial on this if it
works, but since it is not an easy example, it might take some
time.
As I said, I'm definitely no expert on Photoshop scripting,
so I would strongly recommend contacting the
Photoshop
scripting forums to see if there is a way acquire the image
data directly from the DOM. Judging from what the Panel API is
trying to achieve, it's not likely that this is possible or will be
well supported. Trying to track down the pbk versions of the
filters to put into the Pixel Bender Photoshop Plug-in is always an
option.
Again, I apologize for the misunderstanding. My eyes simply
stuck to the question in bold. Good luck with your search.
Thanks,
Brian

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