How can i make a radar with radar line rotate around ?

I have a radar package with a line rotate around pivot.

But i want it’s only detected target when radar line meet target

like that : - YouTube

or like that : Radial Radar - nearly final - YouTube

Please help me :frowning:

Link download my radar package : viet_radar

Sorry about my bad English.

No one can help me ? :frowning: