So still stuck with that annoying problem =[
I found this interesting page
(http://theorangeduck.com/page/maya-velocity-node), talking about the same
issue, more or less. But firstly, it's not *exactly *the same, and secondly
it uses a callback to fix it, while I'm not sure this is the only solution
in my case.
I tried tons of different workarounds, but nothing worked at this point.
I progressed a bit, though ! I know that it's not because of the loop
itself, just because i query the mplug value twice.
In other word, to stick to my previous example :
MDGContext ctx( MTime(10.) );
plug.getValue(oInput, ctx );
*will work*
MDGContext ctx( MTime(11.) );
plug.getValue(oInput, ctx );
*will work*
but
MDGContext ctx1( MTime(10.) );
plug.getValue(oInput, ctx1 );
MDGContext ctx2( MTime(11.) );
plug.getValue(oInput, ctx2 );
*will put me in an infinite loop.*
Any help, suggestion or anything would be more than welcome, i'm really
stuck with that !
Many thanks !
Le dimanche 23 octobre 2016 10:48:16 UTC-7, fruity a écrit :
>
> Hi there,
>
> I'm working on an MPxLocatorNode, and i have to get the value of a plug at
> a given time. I can do it, using an MContext, and it works perfectly :
> MTime t( 10. );
> MDGContext ctx( t );
> plug.getValue( oInput, ctx );
>
> However, when i'm doing it in a loop (i.e. with a dynamic time), Maya will
> run indefinitely, even after the draw() has been done :
> for (double i=0.; i < 2.; i += 1.)
> {
>
> MTime t( i );
> MDGContext ctx( t );
> plug.getValue( oInput, ctx );
>
> }
> // this will never stop being evaluated.
>
> I'm assuming it's because even though i'm using a MContext, a redraw of my
> locator is triggered, somehow. Then, because this redraw is triggered, my
> draw method gets run again, causing another redraw, and so on ?
> But then, why it's not happening if i'm not using a loop ? And then, how
> can i query a plug at a given time, in a loop ? Is there some hack, based
> on a setDirty or setClean call ? Is it reliable ?
> Any help would be much appreciated, as i couldn't find lots of information
> about it online =[
> Many thanks !
>
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