The Video Editor's Render Script for Blender 3.x

Based on mikeycal's script.

Modifications:

• Works with Blender 3.x
• More intuitive & predictive output files
• No more _Click_to_Render_ scripts.
• Smoothen file/folder overwriting experience.

To get the script:

git get https://github.com/b1f6c1c4/the-video-editors-render-script-for-blender/blob/master/video_editors_render_script.py

Recommended way of using the script:

Dead simple, one-line solution of multicore rendering

1. In your Blender, set Scene Properties:

   • File Format: FFmpeg Video
   • Encoding:
     • Container: Matroska
   • Video:
     • Video Codec: WebM/VP9 or AV1 or H.264
     • Output Quality: Anything OTHER THAN Lossless
     • Encoding Speed: (adjust accordingly)
   • Audio:
     • Audio Codec: AAC or Vorbis
     • Bitrate: 192

2. Invoke the script:

   blender -b <path-to-your-.blend> -P <path-to-video_editors_render_script.py>

3. Verify that, in the same folder as .blend, **-video.avi exists.

I have a long video, and I want to FFmpeg myself

1. In your Blender, set Scene Properties:

   • File Format: FFmpeg Video
   • Encoding:
     • Container: AVI
   • Video:
     • Video Codec: H.264
     • Output Quality: Lossless
   • Audio:
     • Audio Codec: PCM

2. (Optional) ssfhs or NFS mount .blend file as well as media files

3. Invoke the script:

   blender -b <path-to-your-.blend> -P <path-to-video_editors_render_script.py>

4. Verify that, in the same folder as .blend, **-video.avi exists.

5. Invoke ffmpeg to compress as will:

   • E.g. HEVC/AAC on MKV, using nVidia CUDA hardware acceleration:

     ffmpeg -i <path>-video.avi \
         -c:v hevc_nvenc -crf 18 -c:a aac -b:a 128k \
         <output.mkv>

I have extremely large memory & disk space

Requirement: Your video is very short, and both /tmp and output dir (same dir as .blend) are very large. We need 400MB / second / 1080p60. Preferably, /tmp is tmpfs, and your disk has very high R/W speed.

1. In your Blender, set Scene Properties / File Format to AVI Raw

2. (Optional) ssfhs or NFS mount .blend file as well as media files

3. Invoke the script:

   blender -b <path-to-your-.blend> -P <path-to-video_editors_render_script.py>

4. Verify that, in the same folder as .blend, **-audio.pcm and **-video.avi exist.

5. Invoke ffmpeg to compress as will:

   • E.g. HEVC/AAC on MKV, using nVidia CUDA hardware acceleration:

     ffmpeg -i <path>-video.avi -i <path>-audio.pcm \
         -c:v hevc_nvenc -crf 18 -c:a aac -b:a 128k \
         -map 0:v:0 -map 1:a:0 \
         <output.mkv> -async 1

I want to inspect individual frames

Requirement: Your video is short, and output dir (same as .blend or another one) is large. We need 150MB / second / 1080p60.

1. In your Blender, set Scene Properties / File Format to PNG, Compression to 15%

2. (Optional) ssfhs or NFS mount .blend file as well as media files

3. (Optional) Create a separate directory for writing output files (150MB/second/1080p60), and:

   ln -s /<path>/<to>/<out-dir> <path>-seq/

4. Invoke the script:

   blender -b <path-to-your-.blend> -P <path-to-video_editors_render_script.py>

5. Verify that, in the same folder as .blend, **-audio.pcm and **-seq/ exist.

6. Invoke ffmpeg to compress as will:

   • E.g. HEVC/AAC on MKV, using nVidia CUDA hardware acceleration:

     ffmpeg -i <path>-seq/%04d.png -i <path>-audio.pcm \
         -c:v hevc_nvenc -crf 18 -c:a aac -b:a 128k \
         -map 0:v:0 -map 1:a:0 \
         <output.mkv> -async 1

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GPL v3