AssetImportContext.DependsOnArtifact

パラメーター

説明

Setup artifact dependency to an asset.

An artifact dependency is a dependency where an Asset depends on the import result (known as an artifact) of another Asset. If you change an Asset that has been marked as a dependency, all Assets which depend on it will also get reimported (after the dependency has been imported).

Note: If you specify an Asset as a dependency that doesn't exist or hasn't yet been imported, the dependency is still registered. It is registered as an un-imported Asset. When the Asset is later imported, all Assets which depend on it will also get reimported.

using UnityEngine;
using UnityEditor;
using UnityEditor.AssetImporters;

class TextureInfo : ScriptableObject
{
    public int height;
}

[ScriptedImporter(1, "cube")]
public class CubeWithTextureImporter : ScriptedImporter
{
    public override void OnImportAsset(AssetImportContext ctx)
    {
        var assetDependency = "Assets/MyTexture.png";

        ctx.DependsOnArtifact(assetDependency);

        var texture = AssetDatabase.LoadAssetAtPath<Texture>(assetDependency);

        if (texture != null)
        {
            var textureInfo = ScriptableObject.CreateInstance<TextureInfo>();
            textureInfo.height = texture.height;
            ctx.AddObjectToAsset("TextureInfo", textureInfo);
        }
    }
}