Resources

public sealed class Resources

When you build your project, Unity includes all assets in every folder in the built Player. You can then load these assets at runtime using Resources.Load or Resources.LoadAsync. Unity doesn't create a folder when you create a project, so you must create one yourself.

Your project can contain any number of folders. To add another folder, create a new folder named anywhere inside your project's folder or its subfolders, or inside a package. Unity treats every folder with this name as a folder and combines the contents of all of them. Unity doesn't include folders that are inside an folder in Player builds.

When you load an asset, the path you pass to Resources.Load or Resources.LoadAsync starts from the folder that contains the asset, and doesn't include the file extension. For example, to load or , you pass the same path: . If both assets exist, you can't control which one Unity loads, so give assets in different folders unique paths or names.

Use Resources.FindObjectsOfTypeAll to locate assets and scene objects in the Editor.

One way to access assets in Unity is to expose a reference to an asset by declaring a member-variable, then assign it in the Inspector, instead of using the direct path to an asset. This allows Unity to automatically calculate which assets are used when building a Player and minimizes the size of the Player to only contain the assets used in your application. However, this method fixes the references in the Inspector which makes them less flexible.

You can use the Resources class to load assets at runtime by specifying their path as a string. For example, you might want to create a GameObject procedurally from a script and assign a texture to a procedurally generated mesh.

Some loaded assets, most notably textures, can use up memory even when no instance exists in the Scene. To reclaim this memory when the asset is no longer needed, you can use Resources.UnloadUnusedAssets.

For more information, refer to the Introduction to the Resources system.

using UnityEngine;using System.Collections;public class ExampleClass : MonoBehaviour{    void Start()    {        GameObject go = GameObject.CreatePrimitive(PrimitiveType.Plane);        Renderer rend = go.GetComponent<Renderer>();        rend.material.mainTexture = Resources.Load("glass") as Texture;    }}

type

path

systemTypeInstance

path

path

assetToUnload