diff --git a/examples/print.php b/examples/print.php
index 095f58a..9d12938 100644
--- a/examples/print.php
+++ b/examples/print.php
@@ -16,7 +16,7 @@ echo $openCL;
 
 //设置打印光线跟踪的配置参数
 $path = new Path();
-$path->photonGI = new PhotonGI();
+$path->photonGI = new cache\PhotonGI();
 echo $path;
 
 //设置打印 采样器 配置参数
@@ -24,8 +24,7 @@ $sampler = new Sampler();
 echo $sampler;
 
 //设置打印 灯光策略 配置参数
-$lightStrategy = new LightStrategy();
-$lightStrategy->openLightCache();
+$lightStrategy = new cache\LightStrategy();
 echo $lightStrategy;
 
 //设置打印 文件储存格式 配置参数
diff --git a/src/scene/Film.php b/src/scene/Film.php
index 9518384..d9b7b37 100644
--- a/src/scene/Film.php
+++ b/src/scene/Film.php
@@ -30,7 +30,7 @@ class Film extends BaseCfg
 
 
     /**
-     * @var object 一个 NoiseEstimation类 的实例对象
+     * @var object 一个 NoiseEstimation类 的实例对象,当采样器实设置为“Metropolis ”，此项参数不需要输出
      */
     public $noiseEstimation;
 
diff --git a/src/scene/LightStrategy.php b/src/scene/LightStrategy.php
index 7393532..65c5afb 100644
--- a/src/scene/LightStrategy.php
+++ b/src/scene/LightStrategy.php
@@ -11,57 +11,10 @@ class LightStrategy extends BaseCfg
     const TYPE_DLS_CACHE = 'DLS_CACHE';
 
     /**
-     * @var string 使用何种灯光策略(可取值是 LOG_POWER、POWER、UNIFORM、DLS_CACHE 四个字符串之一，当值是DLS_CACHE时，直接光子缓存配置参数开启)
+     * @var string 使用何种灯光策略(可取值是 LOG_POWER、POWER、UNIFORM、DLS_CACHE 四个字符串之一，当值是 DLS_CACHE 时，直接光子缓存配置参数开启)
      */
     public $type = self::TYPE_LOG_POWER;
 
-    /**
-     * @var float 光照阈值，（取值：0-1的小数）
-     */
-    public $lightthreshold;
-
-    /**
-     * @var float 目标缓存比率,(取值：0-1的小数)
-     */
-    public $targetcachehitratio;
-
-    /**
-     * @var integer 最大深度，（取值：大于等于0的整数）
-     */
-    public $maxdepth;
-
-    /**
-     * @var integer 最大采样数，（取值：大于等于0的整数，默认1000万）
-     */
-    public $maxsamplescount;
-    
-    /**
-     * @var string 直接光缓存文件的路径用文件名
-     */
-    public $persistentFile;
-    
-    /**
-     * @var object 储存个Entry类对象
-     */
-    public $entry;
-
-    public function openLightCache()
-    {
-        $this->type = self::TYPE_DLS_CACHE;
-        $this->maxdepth = 4;
-        $this->maxsamplescount = 1e+07;
-        $this->persistentFile = "C:\Users\ADMINI~1\AppData\Local\Temp\Untitled.dlsc";
-        $this->entry = new Entry();
-    }
-
-    public function closeLightCache()
-    {
-        $this->type = self::TYPE_LOG_POWER;
-        $this->maxdepth = null;
-        $this->maxsamplescount = null;
-        $this->persistentFile = null;
-        $this->entry = null;
-    }
 }
 
 ?>
diff --git a/src/scene/Path.php b/src/scene/Path.php
index e03a12a..0f52ed8 100644
--- a/src/scene/Path.php
+++ b/src/scene/Path.php
@@ -12,10 +12,14 @@ class Path extends BaseCfg
     public $pathDepth;
 
     /**
-     * @var object 存储一个 HybridBackforWard类 对象
+     * @var object 存储一个 HybridBackforWard类 对象,在调试模式下不需要输出这些字符串
      */
     public $hybridBackforWard;
 
+
+
+
+
     /**
      * @var bool 是否限制 单象素光线 最大跟踪数量
      */
@@ -37,8 +41,6 @@ class Path extends BaseCfg
 
 
 
-    
-
     /**
      * 实例 PathDepth类、HybridBackforWard类的两个对象
      */
diff --git a/src/scene/Caustic.php b/src/scene/cache/Caustic.php
similarity index 94%
rename from src/scene/Caustic.php
rename to src/scene/cache/Caustic.php
index a784a91..e7b087e 100644
--- a/src/scene/Caustic.php
+++ b/src/scene/cache/Caustic.php
@@ -1,7 +1,7 @@
 <?php
 
-namespace Blobt\Luxcore\scene;
-use Blobt\Luxcore\core\Base;
+namespace Blobt\Luxcore\scene\cache;
+use Blobt\Luxcore\scene\BaseCfg;
 
 class Caustic extends BaseCfg
 {
diff --git a/src/scene/Entry.php b/src/scene/cache/Entry.php
similarity index 93%
rename from src/scene/Entry.php
rename to src/scene/cache/Entry.php
index 0c1bae7..07c5071 100644
--- a/src/scene/Entry.php
+++ b/src/scene/cache/Entry.php
@@ -1,6 +1,8 @@
 <?php
 
-namespace Blobt\Luxcore\scene;
+namespace Blobt\Luxcore\scene\cache;
+use Blobt\Luxcore\scene\BaseCfg;
+
 
 class Entry extends BaseCfg
 {
diff --git a/src/scene/Indirect.php b/src/scene/cache/Indirect.php
similarity index 92%
rename from src/scene/Indirect.php
rename to src/scene/cache/Indirect.php
index 18b99c6..0ba515f 100644
--- a/src/scene/Indirect.php
+++ b/src/scene/cache/Indirect.php
@@ -1,7 +1,7 @@
 <?php
 
-namespace Blobt\Luxcore\scene;
-use Blobt\Luxcore\core\Base;
+namespace Blobt\Luxcore\scene\cache;
+use Blobt\Luxcore\scene\BaseCfg;
 
 class Indirect extends BaseCfg
 {
diff --git a/src/scene/cache/LightStrategy.php b/src/scene/cache/LightStrategy.php
new file mode 100644
index 0000000..07966fb
--- /dev/null
+++ b/src/scene/cache/LightStrategy.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Blobt\Luxcore\scene\cache;
+use Blobt\Luxcore\scene;
+use Blobt\Luxcore\core\Base;
+
+
+class LightStrategy extends scene\LightStrategy
+{
+    
+    /**
+     * @var float 光照阈值，（取值：0-1的小数）
+     */
+    public $lightthreshold = 0.01;
+
+    /**
+     * @var float 目标缓存比率,(取值：0-1的小数)
+     */
+    public $targetcachehitratio = 0.995;
+
+    /**
+     * @var integer 最大深度，（取值：大于等于0的整数）
+     */
+    public $maxdepth = 4;
+
+    /**
+     * @var integer 最大采样数，（取值：大于等于0的整数，默认1000万）
+     */
+    public $maxsamplescount = 1e+07;
+    
+    /**
+     * @var string 直接光缓存文件的路径用文件名
+     */
+    public $persistentFile = './tmp/Untitled.dlsc';
+    
+    /**
+     * @var object 储存个Entry类对象
+     */
+    public $entry;
+
+    public function __construct($config = [])
+    {   
+        $this->type = self::TYPE_DLS_CACHE;
+        $this->entry = new Entry($config);
+        Base::__construct($config);
+    }
+
+}
+
+?>
diff --git a/src/scene/PhotonGI.php b/src/scene/cache/PhotonGI.php
similarity index 88%
rename from src/scene/PhotonGI.php
rename to src/scene/cache/PhotonGI.php
index ab1c4c3..e09c02d 100644
--- a/src/scene/PhotonGI.php
+++ b/src/scene/cache/PhotonGI.php
@@ -1,6 +1,7 @@
 <?php
 
-namespace Blobt\Luxcore\scene;
+namespace Blobt\Luxcore\scene\cache;
+use Blobt\Luxcore\scene\BaseCfg;
 use Blobt\Luxcore\core\Base;
 
 class PhotonGI extends BaseCfg
@@ -37,7 +38,7 @@ class PhotonGI extends BaseCfg
     public $caustic;
 
     /**
-     * 实例 PathDepth类、HybridBackforWard类的两个对象
+     * 实例 Indirect 类、Caustic类的两个对象
      */
     public function __construct($config = [])
     {