Unity's 2D features
In 2013, with the release of Unity 4.3, Unity made 2D game development significantly simpler by adding native support for 2D development to the Unity editor environment. Since then, 2D game development has been on the rise among the indie and hobbyist developers. This section will give a general overview the various 2D features and terms as they appear in Unity 5.3.
2D mode versus 3D mode
When creating a new Unity project, you can choose between 3D mode and 2D mode, as shown in the following screenshot:
The main differences in the two modes are the way assets will be imported into your project and the default camera view and position. ...
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