Version: 2021.3
Language : English
Set background images with an image asset
9-Slice images with UI Toolkit

Image import settings

After you have imported an image to your project, for the most intuitive results, it’s recommended that you apply certain import settings for Textures, SpritesA 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
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, and Vector images before you use them as a background for a visual elementA node of a visual tree that instantiates or derives from the C# VisualElement class. You can style the look, define the behaviour, and display it on screen as part of the UI. More info
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in the UI(User Interface) Allows a user to interact with your application. Unity currently supports three UI systems. More info
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Builder.

Texture

The recommended import settings for a Texture image that you use as a background for a visual element:

Property: Value:
Texture Type Default
Non-Power of 2 None
CompressionA method of storing data that reduces the amount of storage space it requires. See Texture Compression, Animation Compression, Audio Compression, Build Compression.
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None
Alpha Is Transparency true
Texture Type Editor GUI and Legacy GUI
Non-Power of 2 None
Compression None
Alpha Is Transparency true
Texture Type Sprite (2D and UI)
Compression None
Alpha Is Transparency true
Sprite Mode Single
MeshThe main graphics primitive of Unity. Meshes make up a large part of your 3D worlds. Unity supports triangulated or Quadrangulated polygon meshes. Nurbs, Nurms, Subdiv surfaces must be converted to polygons. More info
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Type
Tight

Sprites

The recommended import settings for a Sprite image that you use as a background for a visual element:

Property: Value:
Texture Type Sprite (2D and UI)
Compression None
Alpha Is Transparency true
Sprite Mode Multiple if file contains multiple sprites, Single otherwise
Mesh Type Tight

Vector images

The recommended import settings for a SVG Vector image that you use as a background for a visual element:

Property: Value:
Generated Asset Type UI Toolkit Vector Image
Tessellation Settings Basic
Target Resolution Lowest value that produces satisfactory results

Tip:

  • You can apply default presets to Assets by folder to automatically set your desired import settings.
  • All image types are subject to dynamic atlasing if they’re not already in an atlas. (An image is in an atlas if imported as a Sprite with Sprite Mode set to Multiple, or if you have manually added it to a Sprite AtlasA texture that is composed of several smaller textures. Also referred to as a texture atlas, image sprite, sprite sheet or packed texture. More info
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    asset.) You can configure dynamic atlasing in a Panel Settings asset.

Additional resources

Set background images with an image asset
9-Slice images with UI Toolkit