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