ScreenCapture.CaptureScreenshotIntoRenderTexture

参数

描述

将游戏视图的屏幕截图捕获到 RenderTexture 对象中。

这种屏幕截图变体使您能够使用 AsyncGPUReadback 异步读取像素，从而使该过程在主线程上占用更少的时间。

有关何时调用此方法的信息，请参阅 ScreenCapture.CaptureScreenshotAsTexture 中的说明。

using UnityEngine;
using System.Collections;
using UnityEngine.Rendering;

public class ScreenCaptureIntoRenderTexture : MonoBehaviour
{
    private RenderTexture renderTexture;

    IEnumerator Start()
    {
        yield return new WaitForEndOfFrame();

        renderTexture = new RenderTexture(Screen.width, Screen.height, 0);
        ScreenCapture.CaptureScreenshotIntoRenderTexture(renderTexture);
        AsyncGPUReadback.Request(renderTexture, 0, TextureFormat.RGBA32, ReadbackCompleted);
    }

    void ReadbackCompleted(AsyncGPUReadbackRequest request)
    {
        // Render texture no longer needed, it has been read back.
        DestroyImmediate(renderTexture);

        using (var imageBytes = request.GetData<byte>())
        {
            // do something with the pixel data.
        }
    }
}