AssetDatabase.LoadAllAssetRepresentationsAtPath

Parameters

Returns

Object[] Returns all sub-assets at assetPath.

Description

Obtains all sub-assets at assetPath.

This method only returns sub-assets that are visible in the Project view.
All paths are relative to the project folder, for example: "Assets/MyTextures/hello.png"

Note: Sub-assets can be added explicitly via AssetDatabase.AddObjectToAsset
Additional resources: AssetDatabase.LoadMainAssetAtPath, AssetDatabase.LoadAllAssetsAtPath, HideFlags.HideInHierarchy.

using UnityEngine;
using UnityEditor;

public class Example : MonoBehaviour
{
    [MenuItem("AssetDatabase/LoadAllAssetRepresentationsAtPath")]
    private static void PrintSubAssets()
    {
        Object[] data = AssetDatabase.LoadAllAssetRepresentationsAtPath("Assets/MySpriteTexture.png");

        Debug.Log(data.Length + " Sub Assets");

        foreach (Object o in data)
        {
            Debug.Log(o);
        }

        // outputs:
        //  4 Sub Assets
        //  MyTexture_0 (UnityEngine.Sprite)
        //  MyTexture_1 (UnityEngine.Sprite)
        //  MyTexture_2 (UnityEngine.Sprite)
        //  MyTexture_3 (UnityEngine.Sprite)
    }
}