diff --git a/sim_scenes/science/speed_of_light_3d.py b/sim_scenes/science/speed_of_light_3d.py
index ab7400f8ad6e0bf28a3f61b56386bdc16d63747a..8053cbe1dcf47876e5219079a8c4a97a16399ccb 100644
--- a/sim_scenes/science/speed_of_light_3d.py
+++ b/sim_scenes/science/speed_of_light_3d.py
@@ -232,7 +232,7 @@ init.body_arrived = body_arrived
 # 使用 ursina 查看的运行效果
 # 常用快捷键： P：运行和暂停  O：重新开始  I：显示天体轨迹
 # position = 左-右+、上+下-、前+后-
-ursina_run(bodies, 50,
+ursina_run(bodies, 10,
            position=init.camera_position,
            # show_trail=init.show_trail,
            show_timer=True,
diff --git a/tools/sim_video_3d_cap_ext.py b/tools/sim_video_3d_cap_ext.py
index 7045f6ee8241d93f886c94941108b637908b255d..da74c32e83a6d365fd4f5ac9c8e13896c10d946a 100644
--- a/tools/sim_video_3d_cap_ext.py
+++ b/tools/sim_video_3d_cap_ext.py
@@ -271,7 +271,17 @@ def make_3d_video():
     print("开始录屏")
     clear_frame_temp_files()
     while True:
+        if imageNum % 400 == 0:
+            press_pause_key()
+            create_frame_temp_files(completed_index, l_frames, r_frames)
+            r_frames.clear()
+            l_frames.clear()
+            r_frames = {}
+            l_frames = {}
+            press_pause_key()
+
         img = sim_window_screen_shot()
+
         if img is None:
             print("\n模拟器窗口已关闭，退出录屏")
             break
@@ -285,15 +295,6 @@ def make_3d_video():
                 print('X', end='')
             continue
 
-        if imageNum % 100 == 0:
-            press_pause_key()
-            create_frame_temp_files(index + index_base, l_frames, r_frames)
-            r_frames.clear()
-            l_frames.clear()
-            r_frames = {}
-            l_frames = {}
-            press_pause_key()
-
         if index < last_index:
             index_base += (last_index + 1)
             # press_pause_key()