| sizes | An array of rectangle dimensions. | 
| padding | Amount of padding to insert between adjacent rectangles in the atlas. | 
| atlasSize | The size of the atlas. | 
| results | If the function succeeds, Unity populates this with the packed rectangles. | 
                  bool
        Returns true if the function succeeds. Otherwise, returns false.
      
Packs a set of rectangles into a square atlas, with optional padding between rectangles.
See Also: PackTextures.