BuildPipeline.BuildStreamedSceneAssetBundle

参数

返回

string 带有错误消息的字符串，成功时为空。

描述

将一个或多个场景以及它们的所有依赖关系构建到压缩资源包中。

场景 AssetBundle 可以针对任何目标平台而构建，它始终会创建一个经过压缩的 unity3d 文件。

The scene can be downloaded and loaded using the WWW class. You can use WWW.LoadFromCacheOrDownload to cache the downloaded scene after it has been downloaded. The optional crc output parameter can be used to get a CRC checksum for the generated AssetBundle, which can be used to verify content when downloading AssetBundles using WWW.LoadFromCacheOrDownload.

using UnityEngine;
using UnityEditor;
using System.Collections;

public class StreamedSceneLoaderExample : MonoBehaviour
{
    // Build a streamed unity3d file. This contain one scene that can be downloaded
    // on demand and loaded once its asset bundle has been loaded.

    [MenuItem("Build/BuildWlayerStreamed")]
    public static void MyBuild()
    {
        string[] levels = new string[] {"Assets/Level1.unity"};
        BuildPipeline.BuildStreamedSceneAssetBundle(levels, "Streamed-Level1.unity3d", BuildTarget.StandaloneWindows);
    }
}

When downloading the built compressed file, you need to call WWW.assetBundle in order to make the scene available to the Application.LoadLevel() and Application.LoadLevelAdditive() functions.

using UnityEngine;
using System.Collections;

public class StreamedSceneLoaderExample : MonoBehaviour
{
    IEnumerator Start()
    {
        // Download compressed scene. If version 5 of the file named "Streamed-Level1.unity3d" was previously downloaded and cached.
        // Then Unity will completely skip the download and load the decompressed scene directly from disk.
        var download = WWW.LoadFromCacheOrDownload("http://myWebSite.com/Streamed-Level1.unity3d", 5);
        yield return download;

        // Handle error
        if (download.error != null)
        {
            Debug.LogError(download.error);
            yield break;
        }

        // In order to make the scene available from LoadLevel, we have to load the asset bundle.
        // The AssetBundle class also lets you force unload all assets and file storage once it is no longer needed.
        var bundle = download.assetBundle;

        // Load the level we have just downloaded
        Application.LoadLevel("Level1");
    }
}