Building a Character - Mastering Unity 2D Game Development - page 57

Automatic
Unity has put some very smart logic into its automatic sprite carving system that can quite
easily identify regions in your spritesheet where your images are packed. Plus, you have
some advanced options to guide the system to make it fit for your game, as shown in the
following screenshot:
The carving is based on the alpha regions within the texture, so bear this in mind. The fol-
lowing are the advanced options provided by Unity:
• Minimum size : Setting the minimum size of the sprite defines the smallest pixel-
grouping size on the image to select a single sprite. Setting this to a larger value
constrains the selection logic to look for larger groups of sprites. It can also be
viewed as the minimum space between the sprites on the sheet.
• Pivot : As the name suggests, it allows you to set the default pivot position at im-
port time for the sprites that it creates by default.
• Method : This option has the following options to guide the selection logic to
identify sprites:
◦ Delete existing : Selecting this option will clear all the existing sprite
ranges from the sheet.
Note
This is the default option and Sprite Editor will not select any sprites until
you select one of the sprite identification methods.