20 vs 5 min __ How to Speedup VSE Output?

Support Lighting and Rendering
1

I have something like 5 min animation.
Final mix are only PNG animation (1920x1080) with sound cut in WAV format took 20 min to “render”, size 915 MB. Setup was default, I change inly codec.

  • Quicktime
  • RGB
  • Codec H.264
  • Quality 75%
  • AAC 48 kHz
  • Bitrate 256 kbps
  • Tiles 16x16 (for CPU)

The reason why I’m asking is because the same input files I let it run via Motion5 in 5 min, size only 270 MB.

Is there any setup, output format or what ever that can speedup this process in blender?
Thank you for help.

- iMac 27" Late 2013 / 3,4 GHz Intel Core i5 / RAM 24 GB 1600 MHz / NVIDIA GeForce GTX 780M 4096 MB / OS X 10.8.5
- Blender 2.69 (official release r60991)

2

I have just recently started using Quicktime for output on my Mac Mini.

Here are the settings I typically use.

  • Quicktime
  • RGB
  • Codec H.264
  • Quality 100% (at least 92%)
  • AAC 48 kHz
  • Bitrate 160kbps
  • Tiles 128x128 (for CPU -tile size can affect speed to conduct some test)

Also set your Post Processing Dither to 1.0. H264 codec is known for banding and dithering really does help reduce that. Set anti-alias to 5, it defaults to 8.

Pulldown MPEG stream clip, it’s free. You can feed your 100% H264 output file to streamclip and produce an MP4 version that has a smaller filesize footprint after the render completes. Don’t fret over the filesize of the master that much. It is not really your deliverable.

3

Thanks for answer, but your setup didn’t push me forward :frowning:

The render time was the same, and thanks to quality 100%, I think, the file size became 2,64 GB.
That isn’t really what I would appreciate since I don’t see differences (compression artifacts, sharpness lost etc.).

Tile size I set to 16x16 from what I saw in this table blender_tile_sizes_chart2.png

To size down an output via another soft - that is one step more from many others.
You know … I wrote final output, but as you know for sure - a final output is never final :slight_smile:
Even in final render me and client finds many reasons why to render this “final” again and again :slight_smile:
That is why the file size and render time is so important for me.