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CameraHelper.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
[page:Object3D] → [page:Line] → [page:LineSegments] →
<h1>[name]</h1>
<p class="desc">
This helps with visualizing what a camera contains in its frustum. It
visualizes the frustum of a camera using a [page:LineSegments].<br /><br />
[name] must be a child of the scene.
</p>
<h2>Code Example</h2>
<code>
const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
const helper = new THREE.CameraHelper( camera );
scene.add( helper );
</code>
<h2>Examples</h2>
<p>
[example:webgl_camera WebGL / camera]<br />
[example:webgl_geometry_extrude_splines WebGL / extrude / splines]
</p>
<h2>Constructor</h2>
<h3>[name]( [param:Camera camera] )</h3>
<p>
[page:Camera camera] -- The camera to visualize.<br /><br />
This create a new [Name] for the specified camera.
</p>
<h2>Properties</h2>
<p>See the base [page:LineSegments] class for common properties.</p>
<h3>[property:Camera camera]</h3>
<p>The camera being visualized.</p>
<h3>[property:Object pointMap]</h3>
<p>This contains the points used to visualize the camera.</p>
<h3>[property:Object matrix]</h3>
<p>Reference to the [page:Object3D.matrixWorld camera.matrixWorld].</p>
<h3>[property:Object matrixAutoUpdate]</h3>
<p>
See [page:Object3D.matrixAutoUpdate]. Set to `false` here as the helper is
using the camera's [page:Object3D.matrixWorld matrixWorld].
</p>
<h2>Methods</h2>
<p>See the base [page:LineSegments] class for common methods.</p>
<h3>[method:undefined dispose]()</h3>
<p>
Frees the GPU-related resources allocated by this instance. Call this
method whenever this instance is no longer used in your app.
</p>
<h3>
[method:this setColors]( [param:Color frustum], [param:Color cone], [param:Color up], [param:Color target], [param:Color cross] )
</h3>
<p>Defines the colors of the helper.</p>
<h3>[method:undefined update]()</h3>
<p>Updates the helper based on the projectionMatrix of the camera.</p>
<h2>Source</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</p>
</body>
</html>