【Unity】获取相机画面将其保存成图片

 void CameraCapture(Camera m_Camera, string filename)
    {
        RenderTexture rt = new RenderTexture(Screen.width, Screen.height, 16);
        m_Camera.targetTexture = rt;
        m_Camera.Render();
        RenderTexture.active = rt;
        Texture2D t = new Texture2D(Screen.width, Screen.height);
        t.ReadPixels(new Rect(0, 0, t.width, t.height), 0, 0);
        t.Apply();

        string path = Application.streamingAssetsPath + "/" + filename;
        System.IO.File.WriteAllBytes(path, t.EncodeToJPG());
        m_Camera.targetTexture = null;
    }