Hilook / HikVision NVR - line crossing with a geneirc IP camera?

Hi,

I’m looking to upgrade my NVR and I’m considering getting either the HikVision or Hilook. I’m most interested in the line crossing does anyone know if you can configure line crossing on the NVR by adding a generic IP camera (not Hikvision brand)?

I guess I’m trying to find out if the line crossing detection is done on the NVR or in the camera as if in the camera I’ll need to replace some cameras to get it.

Thanks