1
Motion-Based Cleanup Zones
Creates cleanup ranges around planted contacts and transitions, so the setup follows the motion instead of covering the entire timeline.
Blender Extension • v1.0.2
Foot Flow
Foot contact cleanup for mocap and retargeting
Clean up sliding feet, contact jitter, and floor contact issues in mocap and retargeted animation.
Preview changes while scrubbing the timeline, then bake once the contacts are stable.
Fast Smooth
→
Step Plane
→
Step Lock
New in 1.0.2
Major workflow update
OneClickSetup for full foot cleanup in one pass
OneClickSetup analyzes the selected foot motion, detects planted frames, configures smoothing, floor contact, and locking, then refreshes the preview automatically.
2
Ground Height Protection
Uses the lowest visible foot geometry as a contact reference to reduce floating and floor penetration.
3
IK Helper Bone Support
Accounts for IK controls, pole targets, and helper bones so locked contacts remain stable across the rig.
Runs locally: all setup logic runs inside Blender, with no network calls, no external Python packages, and no extra install step.
The Problem
Why mocap feet start sliding
Mocap and retargeted animation can look solid overall while feet still slide, hover, penetrate the floor, or jitter at contact.
The Solution
A focused cleanup stack
Foot Flow reduces motion noise, stabilizes floor contact, and holds planted frames in place. The result stays previewable before any keys are baked.
Who is this for
Made for messy real animation data
Mocap Artists
Clean captured motion with sliding feet, contact jitter, floating, or floor penetration.
Retargeting Users
Fix foot contact after moving animation between Auto Rig Pro, Rigify, Mixamo-style skeletons, and custom rigs.
Character TDs
Add controllable foot cleanup to shots and loops without rebuilding rig logic for every case.
Animation Polishers
Reduce repetitive contact cleanup while keeping control over the final performance.
The Pipeline
What each tool fixes
Each stage targets a specific foot-contact problem, keeping the cleanup predictable and easy to adjust.
Fast Smooth
Reduces contact jitter
Smooths high-frequency motion noise so planted feet stop vibrating while the original timing stays intact.
- Adjust smoothness per setup
- Preserve step timing
- Prepare motion for locking
Step Plane
Stabilizes floor contact
Uses a floor reference to reduce floating feet and ground penetration during contact.
- Set or detect floor height
- Reduce floor penetration
- Prepare contacts for locking
Step Lock
Holds planted contacts
Locks planted frames to a stable reference so the foot stays in place while the body moves.
- Detect planted frames
- Lock selected transform axes
- Preserve loop continuity
Key Features
Built for everyday animation cleanup
A
Live Preview
Review the cleanup while scrubbing the timeline before committing new keyframes.
B
OneClickSetup
Create a complete first-pass setup for the selected foot motion.
C
Faster Tweaking
Recalculates affected frames during tuning, keeping iteration responsive.
D
Flexible Bake Output
Bake the final cleanup to keys, NLA, or a new Animation Layer.
E
Helper Bone Control
Keep IK helpers, pole controls, and related bones aligned with the planted contact.
F
Custom Rig Friendly
Works from selected bones, so many custom rigs can be cleaned without a dedicated preset.
How It Compares
More than a simple foot lock
| What you need | Blender tools | Simple foot lockers | Foot Flow |
|---|---|---|---|
| Reduce tiny foot shake | Basic | No | Yes |
| Stabilize floor contact | No | Basic | Yes |
| Stop planted-foot sliding | No | Basic | Per-axis |
| Preview before baking | No | No | Yes |
| Bake to common outputs | Partial | Limited | Action, NLA, Layers |
Workflow
Four steps to clean feet
1
Select Control
Choose the foot control or bone that drives the contact.
2
Detect Contacts
Use OneClickSetup or Guess Targets to build planted ranges.
3
Preview Motion
Scrub the timeline and confirm the contact is stable.
4
Bake Result
Commit the cleaned motion to the output you need.
Live Preview
Check the result before baking
Preview the cleaned motion in Blender, then bake once the foot contact is stable.
Output
Where the cleaned motion can go
Current ActionWrite cleaned keys to the current animation
NLA StripKeep the cleaned result in an NLA workflow
Animation LayersBake the result to a new animation layer
Under the Hood
What keeps it practical
- Stable smoothing — keeps contact timing readable
- Consistent bake — avoids shifting motion after preview
- Cached bone data — helps previews stay responsive
- Smart refresh — recomputes the parts that changed
- Rotation support — works with common Blender rotation modes
Compatibility
Works with common Blender animation workflows
Stop fixing feet frame by frame
Foot Flow turns sliding mocap feet into stable, grounded motion without hundreds of manual keyframe fixes.