はじめに

「Unity-MultiProcess-BuildPipeline」を Unity プロジェクトに導入することで
マルチプロセスでアセットバンドルをビルドできるようになり
ビルド時間を削減できるようになります

使い方

using System.Collections.Generic;
using UnityEditor;

public static class Example
{
    [MenuItem( "Example/Build" )]
    private static void Build()
    {
        var buildSet = new SortedDictionary<string, string[]>
        {
            {"Assets/Res/64k.txt", new string[]{ "Assets/Res/64k.txt" } },

            {"Assets/Res/128k.txt", new string[]{ "Assets/Res/128k.txt"  } },

            {"Assets/Res/196k.txt", new string[]{ "Assets/Res/196k.txt" } },

            {"Assets/Res/CubeA.mat", new string[]{ "Assets/Res/CubeA.mat" } },
            {"Assets/Res/CubeA.prefab", new string[]{ "Assets/Res/CubeA.prefab" } },

            {"Assets/Res/CubeB.prefab", new string[]{ "Assets/Res/CubeB.prefab" } },
            {"Assets/Res/CubeB1.mat", new string[]{ "Assets/Res/CubeB1.mat" } },
            {"Assets/Res/CubeB2.mat", new string[]{ "Assets/Res/CubeB2.mat" } },

            {"Assets/Res/CubeC.prefab", new string[]{ "Assets/Res/CubeC.prefab" } },

            {"Assets/Res/CubeD.prefab", new string[]
            {
                "Assets/Res/CubeD.prefab",
                "Assets/Res/CubeD1.mat",
                "Assets/Res/CubeD2.mat",
                "Assets/Res/CubeD3.mat",
                "Assets/Res/CubeD4.mat",
                "Assets/Res/CubeD5.mat",
                "Assets/Res/CubeD6.mat",
                "Assets/Res/CubeD7.mat",
                "Assets/Res/CubeD8.mat",
                "Assets/Res/CubeD9.mat",
                "Assets/Res/CubeD10.mat",
            } },
        };

        var builds = new List<AssetBundleBuild>();
        foreach ( var pair in buildSet )
        {
            var build = new AssetBundleBuild
            {
                assetBundleName = pair.Key,
                assetNames = pair.Value,
            };
            builds.Add( build );
        }

        MultiProcessBuild.BuildPipeline.BuildAssetBundles
        (
            output  : "ab",
            builds  : builds.ToArray(),
            options : BuildAssetBundleOptions.None,
            target  : BuildTarget.Android
        );
    }
}