Create texture atlas from several pngs

so far all examples I found about texture atlas assumes I have one png with several sprite art on it and slice them up inside unity3d.

I want to do the opposite, I have all individual png files one for each sprite and I want to create one texture atlas in unity3d with them

any tips?

 

If you have Unity Pro, assign all the files the same packing tag, and it's done automatically.

--Eric

 

or if you don't have Unity Pro, you can create texture atlas in Photoshop, Gimp, or etc graphical apps. and after that slice them in Unity,

 

Do any of these work?

Or if you don't have Unity Pro - Glueit is a nice free minimalistic tool.