# NormalId

## Overview

NormalId is an Enum that specifies direction or position in a 3D coordinate system based on the normal vector direction.

This is used in the EmissionDirection property of ParticleEmitter, the Face property of SurfaceGui, the direction settings of SpotLight, and more.

## Items

| Name   | Value | Description                                                |
| ------ | ----- | ---------------------------------------------------------- |
| Right  | 0     | The direction pointing rightward in the coordinate system. |
| Top    | 1     | The direction pointing upward in the coordinate system.    |
| Back   | 2     | The direction pointing backward in the coordinate system.  |
| Left   | 3     | The direction pointing leftward in the coordinate system.  |
| Bottom | 4     | The direction pointing downward in the coordinate system.  |
| Front  | 5     | The direction pointing forward in the coordinate system.   |

## See also

{% content-ref url="../classes/particleemitter" %}
[particleemitter](https://docs.overdare.com/development/api-reference/classes/particleemitter)
{% endcontent-ref %}

{% content-ref url="../classes/surfacegui" %}
[surfacegui](https://docs.overdare.com/development/api-reference/classes/surfacegui)
{% endcontent-ref %}

{% content-ref url="../classes/spotlight" %}
[spotlight](https://docs.overdare.com/development/api-reference/classes/spotlight)
{% endcontent-ref %}