Resize sprite size via input value

Unity Engine
1

I have a sprite 1280*720 and I set the Pixels Per Unit to 1.

It show 1280*720 in the Scene.

I want to resize the sprite via input the value in Inspector.

For example, I input the Width:600 Height:400 in Inspector then it will show 600*400 in Scene.

I try to add code “GetComponent ().bounds.size.Set (600f, 400f, 0.2f);” in the Script.

it’s no use.

How can I implement it?

2

why not change the transform’s scale?

3

I don’t think change scale is a good way.

4

why not? it doesn’t impact draw calls.