[page:Object3D] → [page:Line] → [page:LineSegments] →

[name]

This helps with visualizing what a camera contains in its frustum.
It visualizes the frustum of a camera using a [page:LineSegments].

Code Example

const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 ); const helper = new THREE.CameraHelper( camera ); scene.add( helper );

Examples

[example:webgl_camera WebGL / camera]
[example:webgl_geometry_extrude_splines WebGL / extrude / splines]

Constructor

[name]( [param:Camera camera] )

[page:Camera camera] -- The camera to visualize.

This create a new [Name] for the specified camera.

Properties

See the base [page:LineSegments] class for common properties.

.camera : Camera

The camera being visualized.

.pointMap : Object

This contains the points used to visualize the camera.

.matrix : Object

Reference to the [page:Object3D.matrixWorld camera.matrixWorld].

.matrixAutoUpdate : Object

See [page:Object3D.matrixAutoUpdate]. Set to `false` here as the helper is using the camera's [page:Object3D.matrixWorld matrixWorld].

Methods

See the base [page:LineSegments] class for common methods.

.dispose () : undefined

Frees the GPU-related resources allocated by this instance. Call this method whenever this instance is no longer used in your app.

.setColors ( [param:Color frustum], [param:Color cone], [param:Color up], [param:Color target], [param:Color cross] ) : this

Defines the colors of the helper.

.update () : undefined

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]

CameraHelper CameraHelper CameraHelper CameraHelper

CameraHelper CameraHelper CameraHelper CameraHelper