new input system

hi i am switching to the new input system i saw that onmouseenter, onmouseexit not function , For this to work, I have to be add PhysicsRaycaster component to the camera and finally implement IPointerEnterHandler, IPointerExitHandler.
I would like to know if PhysicsRaycaster has a lot of consumption or if there is any other better alternative.

 

The overhead here is pretty more or less equivalent. In both cases, there's raycasting into the scene to determine hits.

Overall, the most performant way is to rely on neither mechanism as both are very general. They raycast over potentially great distances and with rather wide filters. Largely depends on what exactly you're doing but building more restrictive mechanisms and, if possible, avoiding raycasts entirely, is the most performant where. But then, too, like with all performance stuff, the gain here may not matter a bit and not be worth the time spent on it.

If UI selection works for you and doesn't show up as a problem in the profiler, my recommendation would be to just run with it.