diff --git a/src/scene/HybridBackforWard.php b/src/scene/HybridBackforWard.php
index 40144cf..bc1fadd 100644
--- a/src/scene/HybridBackforWard.php
+++ b/src/scene/HybridBackforWard.php
@@ -4,7 +4,7 @@ namespace Blobt\Luxcore\scene;
 
 class HybridBackforWard extends BaseCfg
 {
-
+    
     /**
      * @var bool 是否开启 自适应光线跟踪 参数设置
      */
diff --git a/src/scene/Sampler.php b/src/scene/Sampler.php
index b6e525c..ff1d4ae 100644
--- a/src/scene/Sampler.php
+++ b/src/scene/Sampler.php
@@ -33,7 +33,7 @@ class Sampler extends BaseCfg
     public $metropolis;
 
     /**
-     * 实例 PathDepth类、HybridBackforWard类的两个对象
+     * 实例 一个Sobol类，作为默认的采样器配置参数
      */
     public function __construct($config = [])
     {