[Fluxus] FreeFrame and Video Buffer

[roger pibernat]

oh, thanks a lot, Kas.


> This I don't know about, it's not something I think I heard of in the
> Fluxus context. For filtering and so on we do support GL shaders.
>
All I know is it's listed on the FreeFrame host apps listing:
http://community.freeframe.org/hostdatabase

I'm not sure I understand what you're suggesting.  Would that be writing
the output to a texture and then mapping it to the surface of a plane
rendered at full screen?  Are you saying I may have access to the texture
pixels?  If so that would work for me, I guess.  I don't need much
precision, rather the opposite, because all I want is to add glitches to
the images.

too bad fluxus is not the 'right' tool for that anyways, I was just getting
into it and I really like it.  But I'll be using it for other stuff for sure



>
> >    2. Is there any way to access the video buffer so I can manipulate
> it's
> >    data?  Is it possible to write to the buffer in real-time?
> >
> > the reason for question #2 is that I want to overwrite the video buffer
> > after manipulating it.  In other words, I want to write the filtered and
> > manipulated result to the same buffer I was reading from.  The workflow
> > would be something like this:
>
> Well, yes, and no. You can't write to the video buffer directly (as in
> setting pixels and so on) but you can do that to  textures and
> textures can consist of the output of a renderer. So; if you would
> create aplane covering the whole screen, give it a texture like that
> then you would have more or less what you need.
>
> On the down-side; doing per-pixel per-frame manipulations on those
> will be fairly slow which will be a issue for the realtime performance
> you require.
>
> As much as I'd like to "sell" you a copy, I'm not so sure Fluxus would
> be a very good match for these requirements in practice.
>
> Yours,
> Kas.
>
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