Detect polygon in/out entity

Hello everyone, I am a beginner and maybe this question will seem stupid, But I could not find the answer in the documentation (simple Ray & Intersection, Frustum not work)-
1 can I determine the entry and removal of entities from the zone drawn by the primitive - including the graud primitive? for example, a car drove into and out of a primitive.
2 Are there performance limits?
3 can I determine only those points that I see from the camera, or vice versa, for all specified primitives, get entries at once,


Thank you for your question! I recommend checking out the following community forum threads:

This should provide you with some more context about collision detection in CesiumJS. These resources should help you get started.