Hi Crew, i use the version : TDAlphaPOPs3 : 2023.31533
I see a strange behavior with the CHOP Panel.
I want drap POP Particle with it, but when i Right Clic and View mode on the container, IF i see the Panel Chop on the network, it’s stop updating…
A Gif for exemple and the scene.
POPanel_240830.1.toe (8.8 KB)
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I saw on the exemple :
TDAlphaPOPs3\Examples\Miscellaneous\ParticlesPOPDemo.8.toe
POP Particules4 and Particules5 must have the parameter EmissionFrom To BithAttribute to make the exemple revelant 
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A nice attribute to get of POP Particule will be the Initial Born Position, to sample a Texture by exemple.
Best
Hello @anodin
I didn’t noticed a difference between the POP channels values while being inside or outside the container. But if I remove the Target Particles Update POP on the particle POP, particles are emitted just like when we are outside the container. Disabling the viewer on geo1 also make things work. It looks like something strange is happening with the particle feedback loop and the cooking dependencies. I’ll try to investigate more.
The TDAlphaPOPs3\Examples\Miscellaneous\ParticlesPOPDemo.8.toe example is fixed for the next release.
For the Initial Born Position for the particles, we might simply add the more general option to carry attributes values from the input points.
It turned out the Particle POP wasn’t handling the feedback correctly in some condition. This should be fixed in the next release.
Thanks!