hytopia/docs/server.basecollideroptions.collisiongroups.md

The HYTOPIA SDK makes it easy for developers to create massively multiplayer games using JavaScript or TypeScript.

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[Home](./index.md) &gt; [server](./server.md) &gt; [BaseColliderOptions](./server.basecollideroptions.md) &gt; [collisionGroups](./server.basecollideroptions.collisiongroups.md)

## BaseColliderOptions.collisionGroups property

The collision groups the collider belongs to.

**Signature:**

```typescript
collisionGroups?: CollisionGroups;
```