[游戏开发]Unity截屏

private Texture2D captureTex;

private byte[] captureBytes;

private Rect captureRect;

IEnumerator CutImage()
{
        captureTex = new Texture2D(Screen.width, (int)captureRect.height, TextureFormat.RGB24, true);
        yield return new WaitForEndOfFrame();
        captureTex.ReadPixels(new Rect(0, 170, captureRect.width, captureRect.height), 0, 0, true);
        captureTex.Apply();
        yield return captureTex;
        captureBytes = captureTex.EncodeToPNG();

        //File.WriteAllBytes(Configuration.PHOTO_PATH + "test.png", captureBytes);
}

注释：

new Texture2D 决定最终生成的PNG图片的尺寸和格式等信息

void ReadPixels(Rect source, int destX, int destY, [DefaultValue("true")] bool recalculateMipMaps);

参数：

source：屏幕截取起点的X坐标，屏幕截取起点的Y坐标，屏幕截取的宽度，屏幕截取的高度

destX:? ? 截取到的纹理在PNG图片内相对于左下角坐标原点的X轴偏移量

destY:? ? 截取到的纹理在PNG图片内相对于左下角坐标原点的Y轴偏移量

最后一个不清楚。