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fix: clean frames directory before cinematic/turntable re-render

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Old frame PNGs from previous render attempts persisted in the frames
directory, causing FFmpeg to stitch the wrong number of frames.
Now rmtree's the directory before creating it fresh.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Hartmut Nörenberg
2026-03-15 22:02:20 +01:00
parent 458c6cd813
commit c159bff2df
1 changed files with 4 additions and 0 deletions
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backend/app/services/render_blender.py
+4
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@@ -372,6 +372,8 @@ def render_turntable_to_file(
# 2. Render frames with Blender # 2. Render frames with Blender
frames_dir = output_path.parent / f"_frames_{output_path.stem}" frames_dir = output_path.parent / f"_frames_{output_path.stem}"
if frames_dir.exists():
_shutil.rmtree(frames_dir, ignore_errors=True)
frames_dir.mkdir(parents=True, exist_ok=True) frames_dir.mkdir(parents=True, exist_ok=True)
output_path.parent.mkdir(parents=True, exist_ok=True) output_path.parent.mkdir(parents=True, exist_ok=True)
@@ -600,6 +602,8 @@ def render_cinematic_to_file(
# 2. Render frames with Blender # 2. Render frames with Blender
frames_dir = output_path.parent / f"_frames_{output_path.stem}" frames_dir = output_path.parent / f"_frames_{output_path.stem}"
if frames_dir.exists():
_shutil.rmtree(frames_dir, ignore_errors=True)
frames_dir.mkdir(parents=True, exist_ok=True) frames_dir.mkdir(parents=True, exist_ok=True)
output_path.parent.mkdir(parents=True, exist_ok=True) output_path.parent.mkdir(parents=True, exist_ok=True)