fix render single file

bl_utils.py

@@ -85,6 +85,8 @@ def get_bl_cmd(blender=None, background=False, focus=True, blendfile=None, scrip
 
 def background_render(output=None):
     #bpy.context.scene.render.filepath = '{output}'
+
+    output = os.path.abspath(bpy.path.abspath(output))
     script_code = dedent(f"""
         import bpy
         bpy.context.scene.render.filepath = '{str(output)}'
@@ -93,7 +95,7 @@ def background_render(output=None):
         """)
 
     tmp_blend = Path(bpy.app.tempdir) / Path(bpy.data.filepath).name
-    bpy.ops.wm.save_as_mainfile(filepath=str(tmp_blend))
+    bpy.ops.wm.save_as_mainfile(filepath=str(tmp_blend), copy=True)
 
     script_path = Path(bpy.app.tempdir) / 'render_blender_background.py'
     script_path.write_text(script_code)

operators/exports.py

@@ -9,7 +9,7 @@ from bpy.types import Operator
 from bpy.props import BoolProperty
 
 from vse_toolbox.sequencer_utils import (get_strips, render_strip, render_sound)
-from vse_toolbox.bl_utils import (get_scene_settings, background_render)
+from vse_toolbox.bl_utils import (get_scene_settings, background_render, render_scene)
 from vse_toolbox.file_utils import install_module
 
 
@@ -92,7 +92,8 @@ class VSETB_OT_render(Operator):
         start_time = time.perf_counter()
         if project.render_video:
             video_path = project.render_video_template.format(**format_data)
-            background_render(output=video_path)
+            render_scene(video_path)
+            #background_render(output=video_path)
 
         if project.render_audio:
             audio_path = project.render_audio_template.format(**format_data)

sequencer_utils.py

@@ -255,6 +255,20 @@ def render_sound(strip, output):
     scn.frame_end = scene_end
     scn.frame_current = scene_current
 
+def render_scene(output):
+    output = os.path.abspath(bpy.path.abspath(output))
+
+    scn = bpy.context.scene
+    render_path = scn.render.filepath
+
+    scn.render.filepath = output
+
+    print(f'Render Strip to {scn.render.filepath}')
+    Path(output).parent.mkdir(exist_ok=True, parents=True)
+    bpy.ops.render.opengl(animation=True, sequencer=True)
+            
+    scn.render.filepath = render_path
+
 def render_strip(strip, output):
     output = os.path.abspath(bpy.path.abspath(output))
 
@@ -475,8 +489,6 @@ def update_text_strips(scene):
 
     shot_strip = get_strip_at('Shots', frame=scene.frame_current)
     if shot_strip:
-
-
         format_data.update({
             'project_name': project.name,
             'episode_name': episode.name if episode else '',