[PD] RE : Re: need help with gem and glsl feedback

[Patrice Colet]

Yes it helps a lot.

 There are colored lines appearing in background, setting the looped gemframebuffer perspec fixes it, I will try now to found out how to turn background's black pixels to transparent.

Colet Patrice

----- Mail original -----
> De: "Jack" <jack at rybn.org>
> À: pd-list at iem.at
> Envoyé: Jeudi 3 Octobre 2013 12:43:36
> Objet: Re: [PD] RE : Re: need help with gem and glsl feedback
> 
> 
> 
> Le 03/10/2013 11:23, Patrice Colet a écrit :
> 
> 
> Hello,
> 
> I'm trying to find out how to get a backbuffer for attached shader
> found in the web ( http://glsl.heroku.com/e#8849.0 ), it seem I
> couldn't get alpha channel in gemframebuffer's recursion, any idea?
> 

> I just added a line at the begining and an other one at the end of
> fractalFeedback.frag to change the alpha for the feedback.
> I also change the texunit ID backbuffer to 0 in the patch.
> You can change alpha feedback with the number box i added in the
> patch.
> Hope it helps.
> ++
> 
> Jack
> 
> 
> 
> 
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