diff --git a/examples/startDome.php b/examples/startDemo.php
similarity index 98%
rename from examples/startDome.php
rename to examples/startDemo.php
index b1346e5..226fe5b 100644
--- a/examples/startDome.php
+++ b/examples/startDemo.php
@@ -498,7 +498,7 @@ $img->effect = [new render\effect\Pretreatment(),new render\effect\ToneMapLinear
 $film->addImage($img);                                      // 将该图像输出添加到渲染胶片
 
 $film->addImage(new render\Image(['type' => render\Image::TYPE_OBJECT_ID]));    // 为渲染胶片添加一个 通道图类型 的图像输出
-$film->addImage(new render\Image(['type' => render\Image::TYPE_RGBA]));         
+$film->addImage(new render\Image(['type' => render\Image::TYPE_RGBA]));         // 添加一个 透明底 的图像输出        
 
 $img = new render\Image();                                  // 添加一个图像输出，使用默认参数
 $img->effect[] = new render\effect\NoiseReducerOIDN();      // 添加降噪效果管线，使用默认参数
@@ -517,14 +517,14 @@ $render .= $film;
 
 
 
-// 五、输出场景文件 scene，及渲染文件 render.cfg
+// 五、输出场景文件 scene.scn，及渲染文件 render.cfg
 echo $scene;
-$handle = fopen( "/home/yuanjiajia/Desktop/blender/blender_test/scene/scene.scn",'w+');
+$handle = fopen( "~/demo/scene.scn",'w+');
 fwrite($handle,$scene);
 fclose($handle);
 
 echo $render ;
-$handle = fopen( "/home/yuanjiajia/Desktop/blender/blender_test/scene/render.cfg",'w+');
+$handle = fopen( "~/demo/render.cfg",'w+');
 fwrite($handle,$render);
 fclose($handle);
 
@@ -532,8 +532,12 @@ fclose($handle);
 
 
 // 六、启动渲染器
-$cmd = "luxcoreconsole -o /home/yuanjiajia/Desktop/blender/blender_test/scene/render.cfg -f /home/yuanjiajia/Desktop/blender/blender_test/scene/scene.scn 1>../render.log 2>&1";
-exec($cmd);
+$cmd = "luxcoreconsol -o ~/demo/render.cfg -f ~/demo/scene.scn 1>../render.log 2>&1";
+$output;
+$returnVar;
+exec($cmd,$output,$returnVar);
 
+if( $returnVar == 127 ) throw new \Exception("Please install the luxcorerender bin file in the system directory correctly,Or add to the system environment variable");
 
-?>
+
+?>
\ No newline at end of file