diff --git a/.gitignore b/.gitignore
index 80cb2c7..c268805 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,3 +36,5 @@ phpunit.phar
 /.vagrant
 vendor.zip
 /vagrant
+
+composer.lock
diff --git a/examples/print.php b/examples/print.php
index 91ea267..61d5100 100644
--- a/examples/print.php
+++ b/examples/print.php
@@ -4,18 +4,14 @@ namespace Blobt\Luxcore\scene;
 
 include dirname(dirname(__FILE__)) . "/vendor/autoload.php";
 
+$temp = new Native();
 
-$opencl = new OpenCL();
-$opencl->useGpu();
+//$temp->usePidir();
 
-echo $opencl;
+echo $temp;
 
-$pathDepth = new PathDepth([
-    "total" => 12
-]);
 
-$depth = new Path([
-    "pathdepth" => $pathDepth
-]);
 
-echo $depth;
+
+
+?>
diff --git a/src/scene/Native.php b/src/scene/Native.php
new file mode 100644
index 0000000..a6e0727
--- /dev/null
+++ b/src/scene/Native.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Blobt\Luxcore\scene;
+
+class Native extends BaseCfg
+{
+    
+    /**
+     * @var integer //使用多少线程数
+     */
+    private $threadsCount = 4;
+
+    /**
+     * 在CPU渲染模式下，设置使用多少线程数
+     * @var integer $setThreadsCount 传入一个控制使用多少CPU线程数的整数
+     */
+    public function setThreadsCount($threadsCount = 4)
+    {
+        $this->threadsCount = $threadsCount;
+    }
+
+}
diff --git a/src/scene/OpenCL.php b/src/scene/OpenCL.php
index 3c945b6..f030d4f 100644
--- a/src/scene/OpenCL.php
+++ b/src/scene/OpenCL.php
@@ -2,36 +2,64 @@
 
 namespace Blobt\Luxcore\scene;
 
+use ParentIterator;
+
 class OpenCL extends BaseCfg
 {
 
-    //打开或关闭
-    const OPEN = 1;
-    const CLOSE = 0;
-
     /**
      * @var integral 是否使用cpu渲染，默认是
      */
-    private $cpuUse = self::OPEN;
+    private static $cpuUse;
 
     /**
      * @var integral 是否使用gpu渲染，默认否
      */
-    private $gpuUse = self::CLOSE;
+    private static $gpuUse;
+
+    /**
+     * @var string 在GPU渲染模式下，使用哪些GPU设备
+     */
+    public $devicesSelect = '10';
+    
+    /**
+     * @var integer 在GPU渲染模式下，CPU是否渲染，并以多少线程渲染
+     */
+    private $nativeThreadsCount = 4;
+
+
+
+    /**
+     * 以 RenderDevices类 的两个静态属性初始化变量 “$cpuUse”和“$gpuUse”
+     */
+    public function __construct()
+    {
+        self::$cpuUse =  RenderDevices::$cpuSwitch;
+        self::$gpuUse =  RenderDevices::$gpuSwitch;
+    }
+
+    public static function refreshConfig()
+    {
+        self::$cpuUse =  RenderDevices::$cpuSwitch;
+        self::$gpuUse =  RenderDevices::$gpuSwitch;
+    }
 
     /**
-     * 使用cpu渲染
+     * 在GPU渲染模式下，设置使用哪些GPU设备
+     * @var string $devicesSelect 传入一个控制使用哪些GPU设备的字符串
      */
-    public function useCpu(){
-        $this->cpuUse = self::OPEN;
-        $this->gpuUse = self::CLOSE;
+    public function selectDevices($devicesSelect = '10')
+    {
+        $this->devicesSelect = $devicesSelect;
     }
 
     /**
-     * 使用gpu渲染
+     * 在GPU渲染模式下，设置CPU是否渲染，并以多少线程渲染
+     * @var integer $nativeThreadsCount 传入一个控制CPU是否渲染，并以多少线程渲染的整数
      */
-    public function useGpu(){
-        $this->cpuUse = self::CLOSE;
-        $this->gpuUse = self::OPEN;
+    public function setNativeThreadsCount($nativeThreadsCount = 4)
+    {
+        $this->nativeThreadsCount = $nativeThreadsCount;
     }
+
 }
diff --git a/src/scene/RenderDevices.php b/src/scene/RenderDevices.php
new file mode 100644
index 0000000..60d8659
--- /dev/null
+++ b/src/scene/RenderDevices.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Blobt\Luxcore\scene;
+
+class RenderDevices extends BaseCfg
+{
+
+    public function __toString()
+    {
+        return "错误，不能返回当前类的属性。\n";
+    }
+
+    //打开或关闭
+    const OPEN = 1;
+    const CLOSE = 0;
+
+    /**
+     * @var integral 是否使用cpu渲染，默认是
+     */
+    public static $cpuSwitch = self::OPEN;
+
+    /**
+     * @var integral 是否使用gpu渲染，默认否
+     */
+    public static $gpuSwitch = self::CLOSE;
+
+
+    /**
+     * 使用cpu渲染
+     */
+    public function useCpu()
+    {
+        self::$cpuSwitch = self::OPEN;
+        self::$gpuSwitch = self::CLOSE;
+    }
+
+    /**
+     * 使用gpu渲染
+     */
+    public function useGpu()
+    {
+        self::$cpuSwitch = self::CLOSE;
+        self::$gpuSwitch = self::OPEN;
+    }
+
+}
diff --git a/src/scene/TrackerEngine.php b/src/scene/TrackerEngine.php
new file mode 100644
index 0000000..42dc057
--- /dev/null
+++ b/src/scene/TrackerEngine.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Blobt\Luxcore\scene;
+
+class TrackerEngine extends BaseCfg
+{
+    
+    public function __toString()
+    {
+        return "错误，不能返回当前类的属性。\n";
+    }
+    
+
+    /**
+     * @var integral 使用何种光线跟踪引擎
+     */
+    public static $Engine = 'PATH';
+
+
+    /**
+     * 设置使用 “PATH” 光线跟踪引擎
+     */
+    public function usePath(){
+        self::$Engine = 'PATH';
+    }
+
+    /**
+     * 设置使用 “BIDIR” 光线跟踪引擎
+     */
+    public function usePidir(){
+        self::$Engine = 'BIDIR';
+    }
+
+}