So I’ve been noodling around with various tutorials trying to get the hang of the software and it’s features. Currently I’ve been playing with one that focuses on the 2D development tools of Unity.
The problem I’m having is…that when I change the sprite mode from single to multiple in the Import Settings the Sprite Renderer can no longer locate the file…I get the message “Missing (Sprite)” in the Sprite section of the Sprite Renderer. Though the sprite sheet is still view-able in the editor in the Project Window.
Sprite Mode : single - this will use the entire image as the sprite unedited.
Sprite Mode : Multiple - when this is selected, you have basically told unity that this is a spritesheet or atlas, which basically means that it will contain many different sprites within it, and you have to tell unity what parts you want to use
you need to tell unity what parts of the image you require to be sprites. click on the sprite editor and then create ‘slices’ or parts of the image to be used as sprites.
once you do that you will see in your project window (in the folder where you have the main spritesheet image that you are slicing), you will have all the child sprites of that main image.
have a look one of the 2D tutorials that looks at the sprite editor, give you a good heads up. http://unity3d.com/learn/tutorials/modules/beginner/2d/sprite-editor
or jump over and have a look through a couple of the live training session archived lessons dealing with 2D, some good gems in there too
