Update deformes4D_engine.py

deformes4D_engine.py

@@ -175,6 +175,8 @@ class Deformes4DEngine:
             present_scene_desc = storyboard[i]
 
             is_first_fragment = previous_latents_path is None
+            is_penultimate_fragment = (i == num_transitions_to_generate - 2)
+            
             if is_first_fragment:
                 transition_type = "start"
                 motion_prompt = gemini_singleton.get_initial_motion_prompt(
@@ -263,9 +265,10 @@ class Deformes4DEngine:
             if n_trim_latents > 0 and latents_for_video.shape[2] > n_trim_latents:
                 latents_for_video = latents_for_video[:, :, :-n_trim_latents, :, :]  # Cortar 24 do fim
 
-else:
-    if echo_frames > 0 and latents_for_video.shape[2] > echo_frames:
-        latents_for_video = latents_for_video[:, :, echo_frames:, :, :]  # Cortar eco do início
+            else:
+                if echo_frames > 0 and latents_for_video.shape[2] > echo_frames:
+                      latents_for_video = latents_for_video[:, :, echo_frames:, :, :]  # Cortar eco do início
+           
             video_with_audio_path = self._generate_video_and_audio_from_latents(latents_for_video, audio_prompt, base_name)
             video_clips_paths.append(video_with_audio_path)