Is it easy to add a transparent 'range' circle/orb around my top-down selected unit?

I’m wondering if I’m doing this the hard way. I’ve just started Unity about a few weeks ago.

To create a ‘range’ circle/area/orb around my unit I select, is it best done using the following?

  • -Create the ‘Orb’ or ‘Circle’ in Photoshop. Make it very big (As it will need to be the max possible size). Add Transparency.
  • -Import the PSD into Unity as a texture (Set as Unlit Transparent?)
  • -Create a Material. Drop the Texture on to this material
  • -Create a ‘Sphere’ object. Add the material we just created
  • -Attach the sphere to my selected unit on selection. Scale the sphere up or down depending on my unit’s range?

From experience, Is this the easiest and best-looking way to do this? Or is there a built in way in unity, (Like Halo Component maybe?)

-I had also wanted to animate this. (Have arrows animating around the ‘range’ circle in a loop).
I have attached a area.png example image. Not sure if this is how I’m supposed to do it lol

1427359--75543--$area.png

You can use a projector.

–Eric