Workaround... cant you use States for what you are after?
You could use a Simple State (which has a simulate port)

2012/7/10 Grahame Fuller <[email protected]>

> I couldn't repro your results in my quick tests. I got a few rogue
> particles moving when using If - a couple might have been self-collisions
> but others were puzzling. Mute was more reliable.
>
> IsPassiveRigidBody also worked well. Did you remember to set their
> PointVelocity and AngularVelocity to zero? Passive RBDs don't react to
> forces but they do update based on velocity.
>
> gray
>
> From: [email protected] [mailto:
> [email protected]] On Behalf Of Alan Fregtman
> Sent: Tuesday, July 10, 2012 03:46 PM
> To: [email protected]
> Subject: Re: "Simulate Bullet Rigid Bodies" evaluates even when condition
> is False?!
>
> For my need I went back to the... *shivers*... "classic" ICE RBDs, the
> ones which use bounding boxes.
>
> They act reliably (sans exact collisions) and the node respects
> conditional confinements.
>
>
> Sure is a nice "feature" how it evaluates different every time I run the
> sim though! ...Thanks RBDs!...
>
> On Tue, Jul 10, 2012 at 3:38 PM, Jonah Friedman <[email protected]<mailto:
> [email protected]>> wrote:
> Also, you can't iterate on it and after it runs, it doesn't seem to set
> attributes like "pointPosition" or "orientation" in any normal way. I'm not
> a fan of the node either.
>
> On Tue, Jul 10, 2012 at 2:42 PM, Alan Fregtman <[email protected]
> <mailto:[email protected]>> wrote:
> Tried that already and it's still doing something to my particles. Evil
> node!! :/
>
> On Tue, Jul 10, 2012 at 2:38 PM, Stephen Blair <[email protected]
> <mailto:[email protected]>> wrote:
> How about muting the Simulate Bullet Rigid Bodies based on the condition
> you were feeding into the If?
>
> And yes, I got the same thing with an If node.
> I event tried plugging in a second, muted Simulate Bullet Rigid Bodies
> node into the False port
>
> From: [email protected]<mailto:
> [email protected]> [mailto:
> [email protected]<mailto:
> [email protected]>] On Behalf Of Alan Fregtman
> Sent: July-10-12 1:55 PM
> To: XSI Mailing List
> Subject: "Simulate Bullet Rigid Bodies" evaluates even when condition is
> False?!
>
> Hey guys,
>
> It would appear that even when I have an If node presumably preventing
> executation of "Simulate Bullet Rigid Bodies", it STILL EVALUATES. :o
>
> Ever seen this happen? I'm trying to disable it when I don't need it. I
> even tried setting particles as passive RBDs but they still react and
> stuff. I need them to stay still until a given frame.
>
> Everything else in my If node respects the condition, except the sim rbds
> node. :(
>
> Any help appreciated.
> Cheers,
>
>    -- Alan
>
>
>
>


-- 
Gustavo E Boehs
3d Artist
http://www.gustavoeb.com.br/blog

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