12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182 |
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="utf-8" />
- <base href="../../../" />
- <script src="list.js"></script>
- <script src="page.js"></script>
- <link type="text/css" rel="stylesheet" href="page.css" />
- </head>
- <body>
- [page:Object3D] → [page:Line] →
- <h1>[name]</h1>
- <p class="desc">
- Renders [page:ArrowHelper arrows] to visualize an object's vertex normal vectors.
- Requires that normals have been specified in a [page:BufferAttribute custom attribute] or
- have been calculated using [page:Geometry.computeVertexNormals computeVertexNormals].<br /><br />
- Unlike [page:FaceNormalsHelper], this works with [page:BufferGeometry].
- </p>
- <h2>Example</h2>
- <p>
- [example:webgl_helpers WebGL / helpers]
- </p>
- <code>
- var geometry = new THREE.BoxGeometry( 10, 10, 10, 2, 2, 2 );
- var material = new THREE.MeshBasicMaterial( { color: 0xff0000 } );
- var box = new THREE.Mesh( geometry, material );
- var helper = new THREE.VertexNormalsHelper( box, 2, 0x00ff00, 1 );
- scene.add( box );
- scene.add( helper );
- </code>
- <h2>Constructor</h2>
- <h3>[name]( [param:Object3D object], [param:Number size], [param:Hex color], [param:Number linewidth] )</h3>
- <p>
- [page:Object3D object] -- object for which to render vertex normals.<br />
- [page:Number size] -- (optional) length of the arrows. Default is 1.<br />
- [page:Hex color] -- hex color of the arrows. Default is 0xff0000.<br />
- [page:Number linewidth] -- (optional) width of the arrow lines. Default is 1.
- </p>
- <h2>Properties</h2>
- <p>See the base [page:LineSegments] class for common properties.</p>
- <h3>[property:object matrixAutoUpdate]</h3>
- <p>
- See [page:Object3D.matrixAutoUpdate]. Set to *false* here as the helper is using the
- objects's [page:Object3D.matrixWorld matrixWorld].
- </p>
- <h3>[property:Object3D object]</h3>
- <p>The object for which the vertex normals are being visualized.</p>
- <h3>[property:Number size]</h3>
- <p>Length of the arrows. Default is *1*.</p>
- <h2>Methods</h2>
- <p>See the base [page:LineSegments] class for common methods.</p>
- <h3>[method:null update]()</h3>
- <p>Updates the vertex normal preview based on movement of the object.</p>
- <h2>Source</h2>
- <p>
- [link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/helpers/VertexNormalsHelper.js examples/jsm/helpers/VertexNormalsHelper.js]
- </p>
- </body>
- </html>
|