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【three.jsのヘルパー解説集】 ③BoundingBoxHelperの使い方

Last updated at Posted at 2016-07-12

BoundingBoxHelper

継承:THREE.Mesh
解説:オブジェクトの境界エリアを可視化してくれるヘルパーです。大雑把なあたり判定であればこのBoxを活用するとシンプルな実装で済むのでおすすめです。

デモ

Untitled.gif

実装例

javascript
var hex  = 0xff0000;

var sphereMaterial = new THREE.MeshLambertMaterial( {color: 0x00ff00} );
var sphere = new THREE.Mesh( new THREE.SphereGeometry( 30, 12, 12), sphereMaterial );
scene.add( sphere );

var bbox = new THREE.BoundingBoxHelper( sphere, hex );
bbox.update();
scene.add( bbox );

BoundingBoxHelper(object, hex)

  • object:境界を表示させたいObject3Dオブジェクト
  • hex:boxのラインの色
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