Auto adjust sprites to fit when reduce atlas max texture size?

[cometeor]

I make up an atlas of 2048X2048, what's the easy way to scale it to 1024X1024 while keeping the sprites right?

[ArenMook]

You can't do it anymore. There used to be a way to do it back in NGUI 2, but since I changed the code to use pixel coordinates rather than texture coordinates this is no longer an option.