Why do you need a sprite Atlas in Unity?
Unity normally issues a draw call for each Texture in the Scene; however, in a Project with many Textures, multiple draw calls become resource-intensive and can negatively impact the performance of your Project. A Sprite Atlas is an Asset that consolidates several Textures into a single combined Texture.
How many pixels are there in the sprite Atlas?
See in Glossary overlap between Sprites that are next to each other in the Sprite Atlas. The default value is 4 pixels. Check this box to enable access to the Texture data from script functions (such as Texture2D.SetPixels, and other Texture2D functions).
How to set a sprite Atlas to type variant?
Setting a Sprite Atlas to type Variant adds a slot for the master Sprite Atlas and replaces the Packing settings with a scale multiplier (Figure 02). Allow Rotation allows Unity to rotate Sprites, rather than keeping them in their original orientation.
How are sprites used in the Unity UI?
Images can be used in conjunction with Unity UI to add more contrast or visual flair. Sprites are a great way of conveniently storing and using multiple images from a single Texture. Sprites in Unity are referenced from a Sprite Atlas asset. A Sprite Atlas is simply a grid of images compiled into a single Texture.
How are sprites used in a 2D project?
A 2D Project uses Sprites A 2D graphic objects. If you are used to working in 3D, Sprites are essentially just standard textures but there are special techniques for combining and managing sprite textures for efficiency and convenience during development. More info
Why do you need a sprite sheet for unity?
Assembling your art on a Sprite Atlas, also known as a Sprite Sheet, greatly helps to optimize your game , but manual layout of a Sprite Sheet is time intensive. Because the layout is more likely to favor human readability than machine efficiency, wasted memory from excessive transparent pixels is another common issue.