How to create 1x,2x and 4x sprite collection

[josprachi]

Hello,
This is Prachi. I am working on a game in unity 3d i am new to 2D Toolkit.
I want to create sprite collections for all the three platforms 1x,2x and 4x. can anybody guide me step by step how to do this ?

[unikronsoftware]

This tutorial goes through the required steps.
http://2dtoolkit.com/docs/latest/advanced/platform_specific_sprite_collections.html