[page:Line] →

# [name]

The camera Helper is an Object3D which helps visualizing what a camera contains in its frustum.
It visualizes the frustum with an line Geometry.

## Constructor

### [name]([page:Camera camera])

camera -- The camera to visualize.
This create a new [Name] for the specified camera.

## Properties

### [property:object pointMap]

This contains the points to viualize the cameraHelper

### [property:Camera camera]

The camera to visualize.

## Methods

### [method:null update]()

Updates the helper based on the projectionMatrix of the camera.

## Source

[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]