Auto 9 slice sprite generator on Unity.
(The library used to be called OnionRing)

• Package Manager https://github.com/kyubuns/Auto9Slicer.git?path=Assets/Auto9Slicer
• AssetStore
  • If you purchase it from AssetStore, it will be a AssetStore License. For this reason, it is sold for a fee.

Create Auto9SliceTester. Assets > Create > Auto 9Slice > Tester

Click Run to automatically slice the images in the same directory.

Add it to your EditorScript so that it will be executed at your desired timing.

var slicedTexture = Auto9Slicer.Slicer.Slice(texture, SliceOptions.Default);
textureImporter.spriteBorder = slicedTexture.Border.ToVector4();
File.WriteAllBytes(filePath, slicedTexture.Texture.EncodeToPNG());

• Requires Unity2019.4 or later

MIT License (see LICENSE)

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I'd be happy to receive reports like "I used it for this game!"
Please contact me by email, twitter or any other means.
(This library is MIT licensed, so reporting is NOT mandatory.)
https://kyubuns.dev/