QuickMagic

2025/03/24

How to Clean Up MoCap Animation in Cascadeur: QuickMagic Workflow

AI motion capture is fast — but the raw data always needs cleanup. Whether you're working with QuickMagic, optical mocap, or inertial suits, raw animation data contains noise, jitter, and artifacts that need refinement before your character animation looks production-ready.

Original creator's YouTube source link:

https://www.youtube.com/watch?v=CCQrI_2AmDQ

Video Tutorials

QuickMagic to Cascadeur Cleanup Tutoria

Original creator's tutorial on the QuickMagic → Cascadeur mocap cleanup workflow. Source: YouTube

Why Cascadeur + QuickMagic?

Cascadeur is a physics-based animation tool trusted by game studios and indie creators for character animation. QuickMagic generates markerless AI mocap from any video, giving you instant 3D motion data. Together, they create one of the most efficient mocap-to-production pipelines available:

QuickMagic generates body, hand, and facial motion capture from standard video — no sensors, no suits
Cascadeur provides physics-aware cleanup tools that understand weight, balance, and momentum
The combined workflow eliminates hours of manual keyframe cleanup

What You'll Need

A QuickMagic account (free tier available)
Cascadeur installed (free version available for indie creators)
A video file of the motion you want to capture (recorded with phone, webcam, or camera)
A character rig ready in Cascadeur for retargeting

1 Capture MoCap with QuickMagic

Start by recording or uploading a video to QuickMagic. The platform accepts standard footage — dance performances, combat moves, walk cycles, idle animations, or any reference motion.

Capture Tips for Best Results

Full-body visibility: Make sure your full body is in frame from head to toe
Good lighting: Avoid harsh shadows that obscure limb positions
Plain background: A neutral, uncluttered background helps tracking accuracy
Steady camera: Use a tripod or stable surface — avoid shaky handheld footage
Clear motions: Perform each action deliberately; avoid overlapping movements where possible

Select your processing mode — body-only, body + hands, or full body + hands + face — and let QuickMagic generate the 3D animation data.

2 Export as FBX

Once processed, download your motion capture as an FBX file from QuickMagic. FBX is the universal exchange format supported by Cascadeur and virtually every 3D animation tool.

Pro Tip: Check the frame rate of your QuickMagic export and match it to your Cascadeur project settings (commonly 30fps or 60fps). Mismatched frame rates will cause timing issues in your animation.

3 Import FBX into Cascadeur

Open Cascadeur and import your QuickMagic FBX file. The raw mocap data will appear on the timeline as a dense keyframe sequence — this is normal and expected.

Go to File → Import → FBX
Select your QuickMagic export file
Retarget the animation onto your character rig using Cascadeur's retargeting tools
Scrub through the timeline and identify obvious issues — foot sliding, jitter, unnatural poses

4 Animation Unbaking — Set Up the Base

Animation Unbaking is your first cleanup step. Mocap data from QuickMagic arrives as densely baked keyframes (a keyframe on every frame). Unbaking converts this into a sparse, intelligently spaced keyframe set while preserving the motion quality.

Why Unbaking Matters

Baked keyframes are impossible to edit manually — every frame has data
Unbaking creates clean, spaced keyframes at natural motion inflection points
It dramatically reduces the keyframe count while keeping the original motion intact
Clean keyframes are essential for AutoPosing to work effectively

Important: Always unbake before running any cleanup or editing tools. Applying Fulcrum Motion Cleaning or AutoPosing to baked keyframes produces unpredictable results and may degrade animation quality.

5 Fulcrum Motion Cleaning — Remove Noise

Fulcrum Motion Cleaning is Cascadeur's dedicated tool for smoothing AI mocap data. It analyzes trajectories and removes high-frequency jitter while preserving intentional motion arcs.

How to Apply Fulcrum Motion Cleaning

Select the body parts or full rig you want to clean
Open the Fulcrum Motion Cleaning panel
Adjust the cleaning intensity based on your motion type (see table below)
Preview the result and fine-tune

Recommended Cleaning Intensities by Motion Type

6 AutoPosing — Fix and Refine Poses

After smoothing, AutoPosing is where you polish individual poses. This is Cascadeur's physics-aware posing tool that ensures every keyframe respects anatomical constraints like weight distribution, balance, and joint limits.

AutoPosing Workflow

Fix foot sliding: Select foot controllers and anchor them to the ground at contact frames
Adjust center of mass: Use AutoPosing to correct balance — if the character is leaning too far, the tool suggests physically plausible adjustments
Refine limb positions: Select arms or legs and let AutoPosing compute natural IK solutions
Check contact poses: Verify hands and feet make proper contact with surfaces
Iterate: Go frame by frame through critical poses and apply AutoPosing corrections

Common Issues Fixed by AutoPosing

Foot sliding: Feet that slide across the ground instead of staying planted
Unnatural limb angles: Elbows or knees bending in physically impossible ways
Balance problems: Character leaning too far forward or backward
Penetration: Limbs intersecting with the body mesh

7 AutoPhysics — Add Secondary Motion

AutoPhysics is Cascadeur's secret weapon — it simulates realistic secondary motion based on the cleaned primary animation. This is what separates professional animation from stiff, robotic mocap.

What AutoPhysics Adds

Hair sway: Natural hair movement that follows head motion
Clothing dynamics: Fabric that reacts to body movement
Soft tissue jiggle: Realistic muscle and fat vibration on impact
Follow-through: Natural overshoot and settling of limbs and accessories
Impact reaction: Secondary bounce after landings and collisions

8 Export Final Animation

Your mocap is now clean, polished, and production-ready. Export from Cascadeur as FBX for use in your downstream pipeline:

Unreal Engine: Import FBX directly into UE4, UE5.5, or UE5.6
Unity: Use as Humanoid animation clips
Blender: Import for rendering or further editing
Maya / 3ds Max: Import into professional animation pipelines
iClone & Character Creator: Use with Reallusion's ecosystem

FAQ

Can I clean up QuickMagic mocap data in Cascadeur?

Yes. QuickMagic exports FBX files that can be imported directly into Cascadeur. Use Animation Unbaking to convert baked mocap into keyframes, then apply Fulcrum Motion Cleaning to remove jitter. AutoPosing refines individual poses, and AutoPhysics adds realistic secondary motion for a polished result.

What Cascadeur tools should I use for mocap cleanup?

The recommended Cascadeur cleanup workflow uses four tools in sequence: (1) Animation Unbaking converts baked mocap into editable keyframes, (2) Fulcrum Motion Cleaning reduces jitter and smooths trajectories, (3) AutoPosing fixes and refines individual poses with correct physics, and (4) AutoPhysics simulates secondary motion for natural cloth, hair, and soft tissue dynamics.

What is Animation Unbaking in Cascadeur?

Animation Unbaking is a Cascadeur tool that converts densely keyframed (baked) animation data — such as mocap FBX files from QuickMagic — into a sparse, editable keyframe format. It preserves the motion while creating clean, manipulatable keyframes that can be adjusted with AutoPosing and other editing tools.

How do I fix jittery mocap data in Cascadeur?

Start with Fulcrum Motion Cleaning in Cascadeur, which smooths trajectory noise across the animation. Adjust the cleaning intensity to match your motion type — use lower values for subtle, slow movements and higher values for fast action. After smoothing, use AutoPosing to correct any poses that lost precision during the cleaning pass.

Does QuickMagic mocap work with Cascadeur's AutoPhysics?

Yes. After cleaning your QuickMagic mocap with Fulcrum Motion Cleaning and fine-tuning poses with AutoPosing, AutoPhysics can be applied to simulate realistic secondary motion. This includes hair sway, clothing dynamics, and soft tissue movement. AutoPhysics uses Cascadeur's physics engine to calculate these effects based on the cleaned animation data, giving your final animation a natural, polished look.