How to Access Resources in Unity for HoloLens Development?

When developing HoloLens applications in Unity, it is important to deal with resources such as text, images, and audio. Although these files can be accessed directly in the UNITY development environment, they need to use specific methods to access them in constructed HoloLens applications.

Use Resources.load to access resources

The main method of accessing resources in the built HoloLens app is to use the

method. This method allows loading resources without relying on

or Resources.Load classes. The following is the method of loading different types of resources: StreamReader File Text file:

Sound file:

TextAsset txtAsset = (TextAsset)Resources.Load("textfile", typeof(TextAsset));
string tileFile = txtAsset.text;

Image file:

AudioClip audio = Resources.Load("soundFile", typeof(AudioClip)) as AudioClip;

A single elf:

Texture2D texture = Resources.Load("textureFile", typeof(Texture2D)) as Texture2D;

Multiple elves:

Video file (unity & gt; = 5.6):

Sprite sprite = Resources.Load("spriteFile", typeof(Sprite)) as Sprite;

Game object prefabricated body:

Sprite[] sprites = Resources.LoadAll<Sprite>("spriteFile");

3D grid (FBX file):

VideoClip video = Resources.Load("videoFile", typeof(VideoClip)) as VideoClip;

Load 3D grid from the prefabricated body of the game:

GameObject prefab = Resources.Load("shipPrefab", typeof(GameObject)) as GameObject;

3D model (as a game object):

Resource path precautions

Mesh model = Resources.Load("yourModelFileName", typeof(Mesh)) as Mesh;

The resource path should be relative to the folder in the folder.

MeshFilter modelFromGameObject = Resources.Load("yourGameObject", typeof(MeshFilter)) as MeshFilter;
Mesh loadedMesh = modelFromGameObject.sharedMesh;

Do not include file extension names (.txt, .png, etc.) in the path parameter.

When specifying the path in the folder, use a positive slope (/) instead of the back slope ().

If you use a subfolder in a folder, use a positive slash to divide the subclase and file name.

GameObject loadedObj = Resources.Load("yourGameObject");
GameObject object1 = Instantiate(loadedObj);

asynchronous loading

You can also use the method to load resources asynchronously. This allows you to show the loading progress bar or perform other tasks when loading resources.
1. Assets .txt file loading example Resources
The following is an example of the .txt file named "metadata.txt". This file is stored in the "Resources" subfolder:
3. Please note that this example has simplified and avoided unnecessary Resources and string formatting. Use the relative path "Resources/Metadata.txt" to be more concise and efficient.

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