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

[B. Bogart]

The replacement would be something like "clear 0" which is a 1% opaque,
or 100% transparent clear, as in the image is not cleared at all. moving
a geo in the gemwin would create trails.

check out the gem-dev discussion about this. It was decided that
single-buffering is more often used for clearmode effects than actual
single-buffering.

b.

puredata at yesyesnono.co.uk wrote:
>
> Ben, Thanks for your quick answer
>
>
>>If I understand you right what
>>your looking for is a clearmode with the ability to alter the opacity of
>>the clear?
>
> Yes, that's what I meant.
>
>
>>I have suggested this on gem-dev so if you also want it feel
>>free to chime in.
>
> Great! That would be a Wonderful option to see implemented!
>
>
>>"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...
>
> It makes lots of sense to me.
>
> But to see the single buffer mode to disapear from Gem,
> does that mean we will have to render all the geos we want to
> display at each frame? I think in the case when accumulating
> a large number of geos. buffer 1 is very usefull in this kind of situation.
>
>
>
> Many thanks.
>
> Oli
>
>
>
>
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