
TVPaint Animation
The digital solution for your professional 2D animation projects.

Turn static 3D characters into fully rigged assets for game engines in minutes.

AccuRIG, developed by Reallusion, is a professional-grade auto-rigging tool designed to solve the technical bottlenecks of character skinning and bone weighting. As of 2026, it serves as a critical bridge between static 3D mesh generation (including AI-generated 3D models) and real-time animation environments like Unreal Engine 5, Unity, and Omniverse. The tool utilizes a proprietary 5-point marker system to define humanoid structures, which its engine then uses to automatically generate a standard CC3+ (Character Creator) bone hierarchy. This standardization allows for seamless motion retargeting. Architecturally, AccuRIG excels at handling diverse character proportions—from hyper-realistic humans to stylized creatures—while maintaining joint integrity. Its 2026 market position is solidified by its ability to process complex hand rigging and finger joints with precision that typically requires manual weight painting in software like Maya or Blender. By offering a high-fidelity export for free, Reallusion leverages AccuRIG as the primary ingestion point for their ActorCore motion ecosystem, making it an essential utility for indie developers, virtual production houses, and rapid prototyping workflows.
AccuRIG, developed by Reallusion, is a professional-grade auto-rigging tool designed to solve the technical bottlenecks of character skinning and bone weighting.
Explore all tools that specialize in auto-rigging. This domain focus ensures AccuRIG delivers optimized results for this specific requirement.
Uses a 5-point guide to derive the entire skeletal structure through inverse kinematics logic.
Supports 0 to 5 finger configurations with automated knuckle detection.
Real-time mirroring of joint positions across the X-axis for asymmetrical meshes.
Allows users to define mesh areas that should remain rigid or be ignored by the skinning algorithm.
Exports models directly into the Character Creator 4 pipeline with full bone compatibility.
Automatic FBX transformation for Unreal Engine's Mannequin or Unity's Mecanim systems.
One-click upload to the ActorCore platform for cloud-based animation retargeting.
Download and install the standalone AccuRIG application from the Reallusion website.
Import your static 3D humanoid mesh in OBJ or FBX format.
Align the model to the center axis and ensure the character is facing the positive Y-axis.
Place the 5 primary markers (Groin, Neck, Shoulders, Wrists, Ankles) on the mesh.
Execute the 'Compute Rig' function to generate the skeletal hierarchy.
Fine-tune joint positions using the symmetry-aware editing tools if necessary.
Configure the hand rig by selecting the number of fingers and placing markers for joints.
Preview the rig using built-in animation presets (Walk, Run, Wave) to check for skin stretching.
Use the Mask tool to exclude specific mesh parts (like weapons or accessories) from bone influence.
Export the rigged model as an FBX with presets optimized for Unreal, Unity, or Blender.
All Set
Ready to go
Verified feedback from other users.
"Users praise the tool for its incredible speed and hand-rigging accuracy, noting it as a superior, modern alternative to Adobe Mixamo."
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