diff --git a/src/scene/render/Film.php b/src/scene/render/Film.php
index e28d50e..ad8f5f9 100644
--- a/src/scene/render/Film.php
+++ b/src/scene/render/Film.php
@@ -93,7 +93,8 @@ class Film extends BaseCfg
                 }
             }
         }
-        $object->filename = "{$outDir}/{$object->filename}";
+        $nowTime = date("Y-m-d_H:i:s");
+        $object->filename = "{$outDir}/{$nowTime}_{$object->filename}";
         $this->outputs[] = $object;
     }