使い方
- インストールコマンドをコピーし、自分の環境へ導入する前にソースを確認します。
- 必要なツール、認証情報、対応環境を原文で確認します。
- 入力と成果物を指定し、出力を資料と照合します。
npx skills add https://github.com/arjun988/blender-skills --skill physics-sim開始前の確認
- 導入にはモデル契約、API枠、ファイルへのアクセス許可は含まれません。
- スター数や導入数は活動の指標であり、独立した品質・安全性試験ではありません。
リポジトリの原文
見出し、例、コード、表、リンク、参照画像を含む原文を表示しています。
Physics Sim
Stable rigid/soft body setups. Motivated destruction. Baked caches.
When to Use
- Rigid body interactions and collapses
- Soft body jiggle / rubber / simple soft props
- Destruction and debris (cell fracture / pre-cut shards)
- Pre-vis physics before VFX polish
Workflow
Simplify collision meshes → Assign rigid/soft bodies
→ Constraints → Passive settings → Bake → Art-direct → Export cacheRigid Body Quick Rules
| Role | Settings notes |
|---|---|
| Active | Moving debris / props |
| Passive | Floors, walls, heavy anchors |
| Convex hull | Fast, approximate |
| Mesh | Accurate, heavier |
- Apply scale before sim
- Use margin appropriate to scale
- Collection:
COL_Physics_[Shot]
Constraints
- Hinge / fixed / motor for mechanical links
- Breakable constraints for destruction beats
- Name:
RBCON_[Object]_[Type]
Destruction Approach
1. Pre-cut shards (cell fracture or manual)
2. Island meshes as active rigid bodies
3. Passive shell until trigger frame
4. Animate trigger (force / keyframed activation)
5. Bake → cleanup interpenetrationsSoft Body
- Prefer for simple soft props; use
cloth-simfor garments - Goal weights to retain shape
- Soft + collision object required
Bake / Export
- Bake to cache before render
- Alembic/USD for cinematic debris
- For games: bake key poses or flipbook; rarely live Blender physics
Constraints
MUST DO
- Apply scale; use simplified colliders
- Bake before final delivery
- Trigger destruction intentionally (frame)
MUST NOT DO
- High-res sculpt meshes as active colliders
- Unbounded shard counts
- Leave sims unbaked for final renders
Reference Guide
| Topic | Reference | Load When |
|---|---|---|
| Rigid Body Presets | references/rigid-body-presets.md | When needed |
| Destruction Pipeline | references/destruction-pipeline.md | When needed |
| Sim Bake Checklist | references/sim-bake-checklist.md | When needed |
