Surface Test with Object and Particle mesh
i got two flows, one generates particles with a shape that intersects with a object.
the second one just birth thousands of particles at the surface and now i want to delete the particles outside of the other particle volume.
or i could use birth intersections but also don't work with particle meshes from another event.

i don't want to export the geometry of the first particles because it would be better to let everything flexible and not baked.
i think there should be another way but i can't find it right now.
Maybe if you posted some images or videos or something, I could better understand what you're trying to do.
sure, so i got the cones, that are spinning a little bit like searching spotlights.
now i used tyboolean to generate the intersection between the cones and the floor(box).
works fine besides some flicker but i would like to set a MatID for the sliced mesh for mesh select and delete.
i'm using volume select and delete now and i think for this purpose its fine.

my original idea was to generate particles only on the intersecting surface without exporting or caching so it stays completely flexible.

Attached Files Thumbnail(s)
check out Birth Intersections operator

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