Make object gradually fade from left to right,Make object gradually disappear from left to right.

Hi, I want to make a 3d object in unity gradually fade in/out from left to right,(or right to left doesn't really matter). Is there any way I can do that? Thanks.,Hi I want to make an object slowly fade away/fade in from left to right,(or right to left it doesn't really matter). Is there any way I can do this?