Taking the content exemple, I’m trying to limit the particles within a box.
I have tried to place a Blocking or Physic Volumes and the particles are not blocked.
How can I limit the gpu particles within a volume, or a mesh ?
GPU particle collisions utilize scene depth by default, which only works for opaque objects visible to the camera. If you want to use blocking volumes, you have to use normal (non-GPU) particles.
That said, you might have luck with GPU particles using distance field collisions which could work on fully transparent objects, but that’s a bigger topic:
Thanks for your explanations, I will try with non-gpu particles.