diff --git a/sim_scenes/science/speed_of_light_3d.py b/sim_scenes/science/speed_of_light_3d.py
index 8198b20d73dcb8d8dc98811b69531820e8d75c67..f8fb70813a5cc554aeca218c1026bc14be6552a7 100644
--- a/sim_scenes/science/speed_of_light_3d.py
+++ b/sim_scenes/science/speed_of_light_3d.py
@@ -36,6 +36,7 @@ for idx, body in enumerate(bodies):
     if idx > 0:
         body.init_position[0] = -body.radius * body.size_scale
         body.init_position[1] = -body.diameter * body.size_scale
+    body.rotation_speed *= 20
 
 if len(sys.argv) > 1:
     camera_pos = sys.argv[1].replace("_", "")
@@ -159,7 +160,7 @@ 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, 100,
+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 7b6dc7332fca42159f67d3e95aa21859d554d268..78de7fb8b91b9111703ee03ed025bc7e2536be9b 100644
--- a/tools/sim_video_3d_cap_ext.py
+++ b/tools/sim_video_3d_cap_ext.py
@@ -11,6 +11,8 @@ import win32api
 import traceback
 import threading
 
+window_handle = None
+
 
 def get_window_handle(window_name="宇宙模拟器(universe sim)"):
     """
@@ -18,7 +20,9 @@ def get_window_handle(window_name="宇宙模拟器(universe sim)"):
     @param window_name:
     @return:
     """
+    global window_handle
     handle = win32gui.FindWindow(None, window_name)
+    window_handle = handle
     return handle
 
 
@@ -195,7 +199,7 @@ def clear_frame_temp_files():
         shutil.rmtree("frame_temp")
 
 
-def create_frame_temp_files_threading(file_index, left_frames, right_frames):
+def create_frame_temp_files(file_index, left_frames, right_frames):
     data = FrameData(left_frames, right_frames)
     if not os.path.exists("frame_temp"):
         os.mkdir("frame_temp")
@@ -204,13 +208,13 @@ def create_frame_temp_files_threading(file_index, left_frames, right_frames):
     data.save(file_name)
 
 
-def create_frame_temp_files(file_index, left_frames, right_frames):
-    import copy
-
-    thread1 = threading.Thread(target=create_frame_temp_files_threading,
-                               args=[file_index, copy.deepcopy(left_frames),
-                                     copy.deepcopy(right_frames)])
-    thread1.start()
+# def create_frame_temp_files(file_index, left_frames, right_frames):
+#     import copy
+#
+#     thread1 = threading.Thread(target=create_frame_temp_files_threading,
+#                                args=[file_index, copy.deepcopy(left_frames),
+#                                      copy.deepcopy(right_frames)])
+#     thread1.start()
 
 
 def get_frame_temp_data():
@@ -227,6 +231,16 @@ def get_frame_temp_data():
     return temp_frame_data
 
 
+def press_pause_key():
+    KEY_P = win32api.VkKeyScan('P')
+    win32api.PostMessage(window_handle, win32con.WM_KEYDOWN, KEY_P, 0x00190001)
+    # win32api.PostMessage(window_handle, win32api.VkKeyScan('P'), 0x0001 | 0x0008 | 0x0010 | 0x0020, 0)
+    # win32api.PostMessage(0xFFFFFFF6,  win32api.VkKeyScan('P'), 0x0001 | 0x0008 | 0x0010 | 0x0020, 0)
+    # win32api.PostMessage(window_handle, win32con.WM_KEYDOWN, win32api.VkKeyScan('P'), 0)  # 发送F9键
+    # win32api.PostMessage(window_handle, win32con.WM_KEYUP, win32con.VK_F9, 0)
+    pass
+
+
 def make_3d_video():
     args = get_args()
     # handle = get_window_handle()
@@ -256,13 +270,24 @@ def make_3d_video():
         _3d_card_p = _3d_card[10, 10,]
         index = int(_3d_card_p[1]) + int(_3d_card_p[0])
 
-        if index < last_index:
-            index_base += (last_index + 1)
+        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()
+            # create_frame_temp_files(index + index_base, l_frames, r_frames)
+            # r_frames.clear()
+            # l_frames.clear()
+            # r_frames = {}
+            # l_frames = {}
+            # press_pause_key()
 
         last_index = index
         index = index + index_base