[PD] [Gem] fade using single buffer mode.

B. Bogart ben at ekran.org
Tue Aug 30 15:29:59 CEST 2005

Hey Oli,

I think "single-buffer" is on its way out, so I would not invest a lot
of time in it (already gone on OSX).  If I understand you right what
your looking for is a clearmode with the ability to alter the opacity of
the clear? I have suggested this on gem-dev so if you also want it feel
free to chime in.

"clear 1" would be "normal" clean with 100% opacity, and clear 0.01
would be 1% opacity to make a slow "fading" clear, that is once you turn
off the gemheads so only the old buffer remains... well the interface
would be something like that, I think the alpha value is part of the
"color" selector anyhow...


puredata at yesyesnono.co.uk wrote:
> Hi list!
> I've been recently playing around with the single
> buffer mode of GEM and was unsucessful to fade
> to black the buffer window after it rendered some geos.
> I thought I could simply stop banging on the geos I was drawing
> and start banging on a square with very low opacity right in front of the
> camera view... but it didn't really work.
> I also tried to play with the opacity of a pix_buff applied on a geo
> to give the illusion the whole render was fading out. here again
> unsucessfully.
> Is there any other way to create this simple fade to black effect?
> (Note: I've been using the stable 0.90 version of GEM on Ubuntu.)
> Thanks!
> Oli
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