[PD] GEM - edge blending and polygon smooth

[rainer _]

...wow! thats a a lot more sophisticated than my approach! thanks!!! unfortunatly i can´t get  "02.nfp-help.pd" patch to run and i´m not that much into this gl objects....

don´t get me wrong - i can also run GEM 0.92.3. but since after 0.90 versions mark danks "counter" object disappeared for no reason i still use 0.90 mostly. later version breaks about 90% of my old GEM patches.

probably time to switch to vvvv and the multiscreen object/node/whatever...

thanks again,

ra



> Date: Wed, 16 Feb 2011 17:45:32 +0100
> From: ch at chnry.net
> To: jepoxy at hotmail.com
> CC: pd-list at iem.at
> Subject: Re: [PD] GEM - edge blending and polygon smooth
> 
> hello,
> 
> Le 16/02/2011 13:43, rainer _ a écrit :
> > hi,
> >
> > i´m currently working on a patch for a multiscreen / multiprojector installation. I know, probably vvvv is the better choice to do this - but first i want to try it with GEM. i started with two screens, two pd instances, two gemwins framesynced over netsend/receive on one machine. for edgeblending i use pix_takealpha and a matching tif with alpha channel.
> >
> look at a thread named "soft edge" on this mailling list.
> there a mail I send at then end of december that offer a patch that can do this kind of soft edge.
> but you have to create only 1 windows that is on both screen.
> (so you only have 1 pd)
> 
> > at this point the first question appears: is there an object in GEM to adjust gamma and can elevate blacklevels ???
> i think everything that concern pixel value should be computed in Gpu (so with shader) for performance reason.
> 
> 
> >
> > for a rudimental imagewarping i textured the whole thing on a 4-point polygon. the next problem: on excessive warping poor edges appears on texturing - i´ve tried polygon_smooth but it seems that it does not do anything...is there a more elegant way to get smooth imagewarping???
> i recently upload a Gem example for doing this.
> here it is.
> 
> 
> 
> >
> >
> > thanks & best regards,
> >
> > rainer
> >
> > p.s. i´m still on GEM 0.90
> ???
> really?
> according to files date, this release was made in 2004.
> lot's of work have been made since.
> it's time to upgrade.
> 
> c
> 
> >
> >
> >
> > _______________________________________________
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