[Home](./index.md) > [server](./server.md) > [ParticleEmitter](./server.particleemitter.md) > [setOrientation](./server.particleemitter.setorientation.md) ## ParticleEmitter.setOrientation() method Sets the orientation mode of emitted particles. **Signature:** ```typescript setOrientation(orientation: ParticleEmitterOrientation): void; ``` ## Parameters

Parameter	Type	Description
orientation	[ParticleEmitterOrientation](./server.particleemitterorientation.md)	The orientation mode. 'billboard' faces the camera, 'billboardY' faces the camera but keeps Y-axis upward, 'fixed' uses a fixed rotation.

**Returns:** void