# 配置示例与事件清单

## 推荐的配置结构
```json
{
  "camera": { "position": [2.5, 1.6, 3.2], "target": [0, 0.8, 0], "fov": 45 },
  "environment": { "hdr": "/envs/showroom_2k.hdr", "exposure": 1.1, "rotation": [0, 45, 0] },
  "lights": {
    "key": { "intensity": 1.5, "color": "#ffffff", "direction": [0.3, -1, 0.25] },
    "fill": { "intensity": 0.6, "color": "#dfe8ff" },
    "ambient": { "intensity": 0.25 }
  },
  "hotspots": [
    { "id": "engine", "position": [0.8, 0.6, -0.2], "icon": "info", "label": "发动机舱", "event": "show-engine" },
    { "id": "door", "position": [1.1, 0.9, 0.4], "icon": "action", "label": "开启车门", "event": "toggle-door" }
  ]
}
```

## 事件清单（示例）
- 相机：`camera:changed`
- 热点：`hotspot:click`、`hotspot:hover`、`hotspot:rendered`
- 模型：`model:loaded`、`model:replaced`、`model:destroyed`
- 材质：`material:applied`、`material:reset`

订阅方式：
```ts
sdk.on('hotspot:click', (evt) => console.log(evt))
sdk.off('hotspot:click', handler) // 移除监听
```