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Puremotion

by Kuruma·Workflow

Images © Kuruma. Used for product review; image policy.

Why we like it

Puremotion earns its spot in the superhive library by folding six areas of mocap prep, cleanup, root motion, foot tools, looping, Unreal export and batch processing, into one Blender add-on, with rig-aware bone-name auto-fill for Mixamo, UE Mannequin, Rigify and Rokoko.

What is Puremotion?

Puremotion is a Blender add-on from Kuruma that turns raw mocap and animation into game-ready assets. Kuruma built it for their own mocap pipeline, but it works with any animation, whether keyframe animation, retargeted data or mocap, following the same workflow and producing the same results. The developer positions it as handling work that usually takes hours in a few clicks, without scripting.

The add-on is organised into six main sections. Cleanup decimates keyframes, smooths animation with Moving Average, Gaussian and Butterworth filters, and fixes 180° rotation flips and Euler graph glitches. Root Motion can add a root bone, bake motion into the root for in-place, game-ready animation, and extract F-Curve data to copy location keyframes on specific axes. Foot Tools reduce foot sliding, add IK to feet, and pin feet during ground contact. Looping, Export to Unreal Engine, and Batch Process round out the set.

A Quick setup panel auto-fills bone names for Mixamo, UE Mannequin, Rigify and Rokoko rigs and saves snapshots you can restore. Puremotion requires Blender 5.0 or above and is distributed under the GPL license.

Who is Puremotion best for?

Puremotion is best for blender artists preparing mocap, keyframe or retargeted animation into game-ready assets, including export to Unreal Engine.

How much does Puremotion cost?

Puremotion is completely free to download and use.

Key features

  • Cleanup tools decimate keyframes, smooth animation with Moving Average, Gaussian and Butterworth filters, and fix 180° rotation flips and Euler graph glitches
  • Root Motion adds a root bone, bakes motion into the root for in-place game-ready animation, and extracts F-Curve data to copy location keyframes on specific axes
  • Foot Tools reduce foot sliding using a height threshold for ground contact, add IK to feet, and pin feet during contact
  • Looping includes a Smart Loop Finder that locates the closest matching pose to your reference frame, plus start and end frame blending for seamless loops
  • Export to Unreal Engine with sensible default settings
  • Batch Process applies multiple optimizations to all animations in the file at once
  • Quick setup auto-fills bone names for Mixamo, UE Mannequin, Rigify and Rokoko rigs, and saves snapshots you can restore beyond Ctrl+Z

Tags

#Blender#mocap#animation cleanup#root motion#game-ready animation#looping#Unreal export#add-on

Frequently asked questions

Does Puremotion work with Blender 5.0?

Puremotion is built for Blender 5.0 and above, and it's published as an extension-compatible add-on. Because it works with any animation, you can use it with keyframe animation, retargeted data or mocap, all following the same workflow and producing the same results. If you're on an earlier Blender release, check the developer's page before installing, since the add-on targets the 5.0-plus line. The published details also list it as compatible with the Blender extension system.

Can Puremotion export animations to Unreal Engine?

Puremotion includes an Export section that sends animations to Unreal Engine with sensible default settings. Alongside export, the add-on focuses on getting animation game-ready, baking motion into the root for in-place animation, reducing foot sliding, and finding clean loop points. The Batch Process option can apply multiple optimizations to all animations in the file at once, which helps when you're short on time and working across many clips rather than one at a time.

Which rigs does Puremotion auto-fill bone names for?

Puremotion's Quick setup can auto-fill bone names based on your rig, with support for Mixamo, UE Mannequin, Rigify and Rokoko. That step populates the bone names for you rather than having them entered by hand. Because the add-on works with any animation, the workflow stays the same whether your source is keyframe animation, retargeted data or mocap. Quick setup also lets you save snapshots and restore them if you need to undo a change beyond Ctrl+Z.

Does Puremotion require scripting to use?

Puremotion is designed to run without scripting, and the developer describes handling work that usually takes hours in a few clicks. It grew out of Kuruma's own mocap pipeline but works with any animation, so keyframe animation, retargeted data and mocap all follow the same workflow. The add-on groups its functions into six sections: Cleanup, Root Motion, Foot Tools, Looping, Export and Batch Process, plus a Quick setup panel for bone names and snapshots. A demo video is available on the developer's page.

Is Puremotion free, and how is it licensed?

Puremotion is listed as free here, so you won't find a price on this card. The add-on is distributed under the GPL license. For current licensing terms and the latest details, check the developer's page. It's published as a Blender extension-compatible add-on targeting Blender 5.0 and above, so make sure your Blender version matches before installing. Licensing and availability can change over time, so the developer's page is the best place to confirm what applies to you.

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