[PD] pdp usage questions

[Yves Degoyon]

ola.

i would like to answer to these questions,
but they are evry specific to PDP
and i never use these features...

maybe, Tom would answer but i think he cured
his computer addiction and there little chances he will,
maybe some pdp practitioner ( aymeric ? )..

as everybody knows, i don't use pdp/pidip myself ( hehe )
and can only answer on pidip issues or usage.

suerte,
sevy

james tittle wrote:

> I'm having alot of fun playing with pdp/pidip in Gem now that I've 
> gotten everything stable on my system, but I'm still coming up with 
> lots of questions where things don't work the way they seem...
>
> ...when using [pdp_trigger], is this the same as just drawing two 
> connections from the same object? Fr'instance, many examples have the 
> two connections from the [pdp_gain] to [pdp_mul]'s inlets: what's this 
> supposed to do?
>
> ...similarly, some objects accept a [chanmask $1< message, but it's 
> not always clear which ones: I assumed that chanmask 1/2/3 
> corresponded to Y/U/V, but then I came across an example with chanmask 
> 4, so what do these actually represent?
>
> ...is there an object that blends the Y from one packet with the CrCb 
> from another?
>
> ...the bitwize (sic) operators are weird, too: do they accept channel 
> masks? does [pdp_sign] just change the sign, and does [pdp_abs] just 
> give absolutes of the channel values?
>
> ...finally (for now), is there any documentation for the matrix 
> manipulators? I haven't been able to get them to do anything, and 
> [pdp_pointcloud] seems unfinished...
>
> thanx for any insights,
> james
>
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