异步纹理上传在渲染线程上提供分时异步纹理上传，并严格控制内存和分时。除了驱动程序必须执行的分配之外，没有其他分配。要读取数据并上传纹理数据，将重复使用一个大小可控的环形缓冲区。
使用 asyncUploadTimeSlice 设置每帧异步纹理上传的毫秒级时间片。最小值为 1，最大值为 33。
using UnityEngine;
public class StartupExampleScript : MonoBehaviour { void Start() { // Set Time Slice to 2 ms QualitySettings.asyncUploadTimeSlice = 2; } }
其他资源: 质量设置。
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