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Getting attributes in and out of POPNET (hipfile attached)


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I'm using a birth attribute created before the POPNET in the POPNET and awaiting the updated value after POPNET.

How do I ensure the POPNET exports all of the point data generated inside it. I can see the age, but birth attribute is not updated. I have initialised it before the POPNET with pointwrangle i@birth = -1; and then inside the popnet in a popwrangle I ask it gently to take the value of the @Frame when age=0, but I keep getting -1 which is from before the POPNET.
Do you have any idea how to get the value of the birth attribute updated and exported by the POPNET?

hip file attached

Screenshot from 2025-11-19 23-53-12.png

Screenshot from 2025-11-19 23-50-15.png

Screenshot from 2025-11-19 23-49-51.png

birth_attribute_out_of_popnet.hiplc

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I checked every frame of the gif, looked into the details, and I thank you so much for taking the time to look into it, however the set up is not clear to me. I feel there are more things in there than what's needed:

some nodes always greyed (like attributewrangle2), there is some grouping going on while I need this to affect any and all particles, it's unclear what is the role of _prc attribute wrangle, I can't see what the object merge is bringing in, there is collision involved, ... basically I'm lost, it is definitely a lot of work that is appreciated but I want to keep the objective as simple as "see birth attribute updated after popnet in the geometry, and have only the absolute minimum required to see it", no other nodes, groups, collisions, or anything that is not strictly required to achieve this one and only objective. this will help, many thanks.

 

Edited by Coz_y_not
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