AssetImportContext.DependsOnSourceAsset

Parameters

Description

Creates dependency between the asset and a source asset.

The asset depends on the source asset. If the source asset changes or the path of the source asset changes, then the asset is reimported.

using UnityEngine;
using UnityEditor;
using UnityEditor.Experimental.AssetImporters;
using System.IO;

[ScriptedImporter(1, "cube")]
public class CubeWithTextureImporter : ScriptedImporter
{
    public override void OnImportAsset(AssetImportContext ctx)
    {
        var cube = GameObject.CreatePrimitive(PrimitiveType.Cube);

        ctx.AddObjectToAsset("main obj", cube);
        ctx.SetMainObject(cube);

        var material = new Material(Shader.Find("Standard"));

        var lines = File.ReadAllLines(ctx.assetPath);
        var texturePath = lines[0];
        var texture = AssetDatabase.LoadAssetAtPath<Texture>(texturePath);
        if (texture != null)
        {
            material.SetTexture("_MainTex", texture);
            // add a dependency on the texture, such that if it changes or moves, we reimport the asset
            ctx.DependsOnSourceAsset(texturePath);
        }

        ctx.AddObjectToAsset("MaterialWithTexture", material);
    }
}