Question by artwen · Nov 19, 2015 at 02:22 PM · sprite spritesheet meta textureimporter metafiles

How to rename individual sprite slice without creating new fileID in meta file using code?

Hi guys, after sliced a sprite sheet, I noticed that if I rename each individual sprite slice manually in Unity, the 'fileIDToRecycleName' session of the meta file for that sprite will stay cool (only name changes, while the fileID remains the same). However, if I do it using code, the 'fileIDToRecycleName' session will expand, reassigning the new name to a new fileID. See below:

 fileIDToRecycleName:
             21300000: name_0
             21300002: name_1
             21300004: name_2
 //if manually rename in unity the above will change to:
 fileIDToRecycleName:
             21300000: newname_0
             21300002: newname_1
             21300004: newname_2
 //if rename in code then:
 fileIDToRecycleName:
             21300000: name_0
             21300002: name_1
             21300004: name_2
             21300006: newname_0
             21300008: newname_1
             21300010: newname_2

My code is like this, similar to line 215-267 of https://github.com/eppz/Unity.Library.eppz_kit/blob/master/Editor/EPPZEditor_SliceRenamer.cs

         ...
         // Locate asset, get meta.
         path = AssetDatabase.GetAssetPath(texture);
         textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
         SpriteMetaData[] sliceMetaData = textureImporter.spritesheet;
 
         // Naming loop.
          for (i...)
         {
             string eachName = ...;
             ...
             sliceMetaData[i].name = eachName; 
         }
 
         // Save settings.
         textureImporter.spritesheet = sliceMetaData;
         EditorUtility.SetDirty(textureImporter);
         textureImporter.SaveAndReimport();
 
         // Reimport/refresh asset.
         AssetDatabase.ImportAsset(path, ImportAssetOptions.ForceUpdate);

Add comment · Show 3

artwen · Nov 19, 2015 at 02:27 PM 0

I try to change line 16 to something like:

         textureImporter.spritesheet[].name = slice$$anonymous$$etaData[].name;

What is the right way of doing this? And will it work?

artwen · Nov 20, 2015 at 03:16 AM 0

Or, is it possible to use Packer.GetAtlasDataForSprite and atlasName variable to rename the slices without creating new fileID?

TDMJ · Mar 14, 2018 at 06:32 AM 0

this can simply change the sliced sprite, but the resources which use the sliced sprite with old name will not change at same time.

Like a prefab A, use sliced sprite named [a_01], but you change it into [a_001],it's will not show the right sliced sprite.

I wonder if there's API work like Sprite Editor, change sliced sprite's name, and click Apply button, and deal with dependencies with Unity itself.

How to rename individual sprite slice without creating new fileID in meta file using code?

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