[Fluxus] FreeFrame and Video Buffer

[Kassen]

On Sun, May 20, 2012 at 04:23:33PM +0200, roger pibernat wrote:
> 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

Then most likely that is right and I was wrong :-)
It is a bit odd that I hadn't heard of it though.

> 
> 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.
> 
Yes, that is exactly what I was suggesting. Textures you can treat as
just as set of pixels as well as link a renderer to them. The one
downside to this and why I wonder whether this will suit your needs is
that it is slow to do stuff per-pixel, per-frame and this will
probably be a serious bottleneck if you'd like to do this full-screen
in realtime.

Maybe a shader could work for adding glitches, instead of this whole
"plane+ texture+ tricks" stuff. Shaders have their own little language
and I think they require reading a bit about OpenGL and so on, but if
it would work it would be a LOT faster.

> 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
> 

Lovely; welcome on board!

Yours,
Kas.