Smoothie

add motion blur to videos, with granular configuration

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What is Smoothie?

User facingDeveloper facing

Smoothie applies motion blur on video-game footage, it's got features similar to smart-resampling and RSMB.

It acts as an all-in-one filter chain, you can individually toggle and configure each component if you'd like.

Smoothie is a cross-platform fork of blur, now rewritten in Rust.

Why should I use Smoothie?

Smoothie can be a better alternative to using the following programs / features.

They're opt-in/out, so you can disable them at your discretion via the recipe:

• [frame blending]: VEGAS Pro's smart resampling / Premiere Pro's frame blending / FFmpeg's Tmix filter

  It's magnitudes faster than rendering with VEGAS Pro's smart resample, benchmark:

  • Smoothie-RS: 10.9 seconds
  • VEGAS Pro 18.0 (build 284): 81 seconds
  • FFmpeg tmix: 19 seconds
  Benchmark details

  Frame blending a 1280x720, 990fps clip to 60fps (17 weights)

  Try it yourself with the raw clip

  They were encoded with the UTVideo codec

  Here's the relevant values I've set in the recipe:

  [frame blending]
  enabled: yes
  fps: 60
  intensity: 1.0
  weighting: vegas
  
  [output]
  enc args: -c:v utvideo
  container: .MKV
  

  FFmpeg arguments:

  -i grzy.mp4 -vf tmix=frames=17 -y -r 60 -c:v utvideo tmikx.mkv
  

• [flowblur]: RSMB, After Effects' CC Force Motion Blur

  • [artifact masking]: Manually reverting RSMB where it smeared in a video editor with masking tools

    Mask example

    E.g for apex legends:

    

• [pre-interp]: Flowframes / RIFE

• [output]: Transcoding with FFmpeg (-vcodec <...>) * Upscaling to 4K

How to use Smoothie

You can configure your "recipe" (config) by modifying recipe.ini, all settings are explained here

It does not have an interface as it is a CLI tool but there are tons of wrappers so you never have to open a terminal and type anything yourself:

1. You can feed your videos directly via SendTo

2. Or select your videos in a file picker dialog by running Launch.cmd