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Sop solver reset attribute ?


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Hello
I'm stuck on a problem that must be everything stupid.
In this set-up I try to use @active attribute to use it in an RBD simulation.
To modify @active at thee SOP level I use an attribute transfer.
the problem is that the Active attribute must not return to zero when it leaves the object area. I'm trying to use a counter so that the "activation event" only takes place once.
For this counter I need a solver, but that's where I get stuck, the SOP solver resets my @active attribute, even if it doesn't do anything.

I know other ways to achieve this result, I looked at, among other things, the mestela files concerning these kind of setups.
But I would really like to understand what's wrong here, because obviously something is slipping away from me.
I also attach the file, if a kind soul wants to take a look at it.

ActivatorObject.hipnc.zip

Capture.JPG

Edited by flcc
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Finally, got it ! (with the help of french houdini discord, though)
It was just a fundamental misunderstanding of the use of the SOPSolver.
I used prev_frame as my main output without questions.

Very bad idea ! :lol:

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