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Smoothie

add motion blur to videos, with granular configuration

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What is Smoothie?

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:

      Mask example

  • [pre-interp]: Flowframes / RIFE

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

How to use Smoothie

Launching Smoothie from the start menu gives you two options:

  • Drag and drop video(s) on the window
  • Click render for a file browser dialog

It will ignore non-video files, if you need to go through a whole folder don't fret to CTRL+A

You can configure your "recipe" (config) using the GUI, or by modifying the recipe.ini file, all settings are explained here

It can be used in scripts with it's extensive CLI arguments

You can also feed your videos directly via SendTo Send To folder

If you don't like having to click render in the gui and want a file picker dialog straight away, make a shortcut in the start menu (%APPDATA%\Microsoft\Windows\Start Menu\Programs) and add --tui in the target,

Launch.cmd preview