Version: 2017.3

Application.backgroundLoadingPriority

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public static ThreadPriority backgroundLoadingPriority ;

描述

后台加载线程的优先级。

可用于控制异步加载数据所需的时间以及在后台加载时对游戏的性能影响。

加载对象(Resources.LoadAsyncAssetBundle.LoadAssetAsync、AssetBundle.LoadAllAssetAsync)、场景 (SceneManager.LoadSceneAsync) 的异步加载函数在单独的后台加载线程中执行数据读取和反序列化,并在主线程中执行对象集成。 “集成”取决于对象类型和纹理,网格意味着将数据上传到 GPU,音频剪辑可准备数据以进行播放。

To avoid hiccups we limit integration time on a main thread depending on backgroundLoadingPriority value:
- ThreadPriority.Low - 2ms;
- ThreadPriority.BelowNormal - 4ms;
- ThreadPriority.Normal - 10ms;
- ThreadPriority.High - 50ms.
This is a maximum time all asynchronous operations can spend within a single frame on a main thread.

后台加载线程直接使用 backgroundLoadingPriority

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Example() { Application.backgroundLoadingPriority = ThreadPriority.High; Application.backgroundLoadingPriority = ThreadPriority.Low; } }

另请参阅:ThreadPriority 枚举、AsyncOperation.priority