Unity Script Reference – BuildPipeline.BuildAssetBundle

BuildPipeline.BuildAssetBundle

static function BuildAssetBundle (mainAsset : Object, assets : Object[], pathName : string, options : BuildAssetBundleOptions = BuildAssetBundleOptions.CollectDependencies | BuildAssetBundleOptions.CompleteAssets, targetPlatform : BuildTarget = BuildTarget.WebPlayer) : bool

Description

Builds an asset bundle (Unity Pro only).

Creates a compressed unity3d file that contains a collection of assets. AssetBundles can contain any asset found in the project folder. This lets you stream resource data of any type, fully setup prefabs, textures, meshes, animations, any type of asset shown in the project window. mainAsset lets you specify a specific object that can be conveniently retrieved using AssetBundle.mainAsset. The compressed asset bundle file will be saved at pathName. options allows you to automatically include dependencies or always include complete assets instead of just the exact referenced objects. All paths are relative to the project folder. Like: "Assets/MyTextures/hello.png"

See Also: AssetBundle class, WWW.assetBundle.

// C# Example
// Builds an asset bundle from the selected folder in the project view.
// Bare in mind that this script doesnt track dependencies nor is recursive

using UnityEngine;
using UnityEditor;
using System.IO;

public class BuildAssetBundlesFromDirectory {
[@MenuItem("Asset/Build AssetBundles From Directory of Files")]
static void ExportAssetBundles () {
// Get the selected directory
string path = AssetDatabase.GetAssetPath(Selection.activeObject);
Debug.Log("Selected Folder: " + path);
if (path.Length != 0) {
path = path.Replace("Assets/", "");
string [] fileEntries = Directory.GetFiles(Application.dataPath+"/"+path);
foreach(string fileName in fileEntries) {
string filePath = fileName.Replace("
", "/");
int index = filePath.LastIndexOf("/");
filePath = filePath.Substring(index);
Debug.Log(filePath);
string localPath = "Assets/" + path;
if (index > 0)
localPath += filePath;
Object t = AssetDatabase.LoadMainAssetAtPath(localPath);
if (t != null) {
Debug.Log(t.name);
string bundlePath = "Assets/" + path + "/" + t.name + ".unity3d";
Debug.Log("Building bundle at: " + bundlePath);
// Build the resource file from the active selection.
BuildPipeline.BuildAssetBundle
(t, null, bundlePath, BuildAssetBundleOptions.CompleteAssets);
}

}
}
}
}