Three.js 获取飞机的世界位置
我对three.js很陌生,所以我肯定我很想理解这里的一些东西 我用以下方式创建了一个平面:Three.js 获取飞机的世界位置,three.js,Three.js,我对three.js很陌生,所以我肯定我很想理解这里的一些东西 我用以下方式创建了一个平面: var planeGeom = new THREE.PlaneGeometry(0.2, 0.2); planeGeom.rotateX(-Math.PI / 2); var plane = new THREE.Mesh(planeGeom, new THREE.MeshBasicMaterial({color: 0xffff00, side: THREE.DoubleSide})); plane.po
var planeGeom = new THREE.PlaneGeometry(0.2, 0.2);
planeGeom.rotateX(-Math.PI / 2);
var plane = new THREE.Mesh(planeGeom, new THREE.MeshBasicMaterial({color: 0xffff00, side: THREE.DoubleSide}));
plane.position.set(0, 0.1, 0);
scene.add(plane);
var mathPlane = new THREE.Plane();
planePointA.copy(plane.geometry.vertices[plane.geometry.faces[0].a]);
planePointB.copy(plane.geometry.vertices[plane.geometry.faces[0].b]);
planePointC.copy(plane.geometry.vertices[plane.geometry.faces[0].c]);
plane.localToWorld(planePointA);
plane.localToWorld(planePointB);
plane.localToWorld(planePointC);
mathPlane.setFromCoplanarPoints(planePointA, planePointB, planePointC);
var helper = new THREE.PlaneHelper( mathPlane, 1, 0xffff00 );
scene.add( helper );
为什么PlaneGeometry对象和平面的位置不同?为什么.localToWorld()不能获取平面的世界位置
设置位置后,在
平面上使用.updateMatrix World()
:
plane.position.set(0, 0.1, 0);
plane.updateMatrixWorld();
scene.add(plane);
非常感谢。我昨天花了整整一天的时间试图解决这个问题,在一行代码中,现在一切都正常了!=)