Mode d’emploi
- Copiez la commande et examinez le paquet avant de l’installer dans votre environnement agent.
- Consultez le document original pour les outils, identifiants et environnements requis.
- Décrivez les entrées et le livrable souhaité ; comparez la sortie aux sources.
npx skills add https://github.com/arjun988/blender-skills --skill riggingAvant de commencer
- L’installation n’inclut ni abonnement au modèle, ni quota API, ni accès aux fichiers.
- Étoiles et installations reflètent l’activité, pas un test indépendant de qualité ou de sécurité.
Document Skill original
Rendu depuis le dépôt source en conservant titres, exemples, code, tableaux, liens et images.
Rigging
Functional rigs supporting intended motion. Clean deformation. Engine-compatible bone hierarchies.
When to Use
- Character/creature deformation rigs
- Mechanical constraint rigs
- Facial expression rigs
- Prop rigs (doors, vehicles, weapons)
- Before any animation work
Workflow
Skeleton Design → Bone Placement → Hierarchy → Constraints/IK
→ Weight Painting → Deformation Test → Export PrepArmature Naming
Prefix: ARM_[AssetName] Bones: [side]_[region]_[name] — e.g., L_arm_upper, spine_01, jaw
Bone Hierarchy
ARM_Character
├── root
├── spine_01 → spine_02 → spine_03
│ ├── L_clavicle → L_arm_upper → L_arm_lower → L_hand
│ └── R_clavicle → R_arm_upper → R_arm_lower → R_hand
├── L_leg_upper → L_leg_lower → L_foot → L_toe
└── R_leg_upper → R_leg_lower → R_foot → R_toeIK vs FK
| Use IK | Use FK |
|---|---|
| Legs (ground contact) | Spine (flexible arc) |
| Arms (hand placement) | Shoulder overlap |
| Feet planting | Finger detail |
| Mechanical reach | Whip/tail motion |
Standard: IK legs, FK spine; switchable arms for game characters.
Constraints
| Constraint | Use |
|---|---|
| IK | Limb positioning |
| Copy Rotation | Mechanical sync |
| Limit Rotation | Joint ranges |
| Stretch To | Tentacles, pistons |
| Child Of | Weapon attach/detach |
| Shrinkwrap | Ground contact (use carefully) |
Weight Painting
1. Automatic weights as starting point only
2. Clean weights: normalize per vertex (max 4 influences)
3. Smooth problematic areas (shoulders, hips)
4. Test extreme poses: T-pose, arms up, crouch, jaw open
5. Gradient weights at joints — no hard 1.0/0.0 at bend centerMechanical Rigs
- Empty objects as control handles
- Constraints instead of weight painting
- Hinge limits match real joint ranges
- Parent hierarchy mirrors mechanical assembly
Facial Rigs
| Approach | Use Case |
|---|---|
| Bone-based | Game characters |
| Shape keys | Cinematics, dialog |
| Hybrid | Hero game characters |
Minimum game facial: jaw open, blink L/R, brow up/down.
Drivers
- Gear rotation sync
- Auto eyelid blink
- Weapon reload mechanism
- Procedural antenna/wire motion
MCP Integration
- Create armature via MCP
- Parent mesh with automatic weights via MCP
- Query bone count and hierarchy
- Validate weight groups via MCP if supported
- Export armature with mesh via export-pipeline
Deformation Test Poses
- T-pose / A-pose (bind pose)
- Arms fully raised
- Deep crouch
- Neck rotation extremes
- Jaw wide open (characters)
Constraints
MUST DO
- Rig after retopology complete
- Name bones consistently
- Limit bone influences to 4 per vertex (game engines)
- Test deformation at extremes before animation
- Document control scheme for animators
MUST NOT DO
- Auto weights without cleanup (hero assets)
- Scale bones in bind pose
- Rig before topology validated
- Skip IK pole targets on limbs
- Mix multiple root bones without documentation
Reference Guide
| Topic | Reference | Load When |
|---|---|---|
| Humanoid rig | references/humanoid-rig.md | Characters |
| Mechanical rig | references/mechanical-rig.md | Props, vehicles |
