# Unreal Control Rig

> Unreal Engine Control Rig skill for procedural animation, IK chains, and runtime rig modifications.

- Skill: `a5c-ai/unreal-control-rig` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add a5c-ai/unreal-control-rig`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/unreal-control-rig/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/unreal-control-rig

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# Unreal Control Rig Skill

Control Rig for procedural animation in Unreal Engine.

## Overview

This skill provides capabilities for implementing procedural animation using Unreal's Control Rig system.

## Capabilities

### Rig Development
- Create Control Rig blueprints
- Implement IK solvers
- Configure FK chains
- Handle rig hierarchies

### Procedural Animation
- Implement look-at systems
- Create foot IK
- Handle hand IK
- Manage aim offsets

### Runtime Modifications
- Modify bones at runtime
- Blend rig outputs
- Handle animation layers
- Manage rig performance

### Integration
- Connect with Animation BP
- Handle anim graph nodes
- Integrate with gameplay
- Support retargeting

## Prerequisites

- Unreal Engine 5.0+
- Control Rig plugin enabled

## Usage Patterns

### Foot IK Setup

```
1. Create Control Rig asset
2. Add foot controls
3. Implement two-bone IK
4. Handle ground detection
5. Apply in Animation BP
```

### Animation Blueprint Integration

```
Animation Graph:
Linked Anim Layers -> Control Rig Node -> Output Pose
```

## Best Practices

1. Use rig for runtime adjustments
2. Profile rig complexity
3. Test with LOD
4. Handle edge cases
5. Document rig setup

## References

- [Control Rig Documentation](https://docs.unrealengine.com/5.0/en-US/control-rig-in-unreal-engine/)