我想创建多个立方体,在每个立方体上添加一个单击事件,并将它们与 GeometryUtils.merge 组合在一个“父”对象中。
var cubes=[];
var mainGeom = new THREE.Geometry();
var cubegeometry = new THREE.CubeGeometry(50, 50, 50, 1, 1, 1 );
cubes[1] = new THREE.Mesh( cubegeometry );
cubes[1].position.y = -50;
THREE.GeometryUtils.merge( mainGeom, cubes[1] );
cubes[2] = new THREE.Mesh( cubegeometry );
cubes[2].position.y = 50;
THREE.GeometryUtils.merge( mainGeom, cubes[2] );
cubes[3] = new THREE.Mesh( cubegeometry );
cubes[3].position.z = -50;
THREE.GeometryUtils.merge( mainGeom, cubes[3] );
cube = new THREE.Mesh( mainGeom,new THREE.MeshBasicMaterial( { color: 0xff0000 } ));
结合工作正常。但是我怎样才能在每一个上添加一个点击事件呢?我正在使用这个:
function onDocumentMouseDown( event ) {
event.preventDefault();
mouse = {x : ( event.clientX / window.innerWidth ) * 2 - 1, y :- ( event.clientY / window.innerHeight ) * 2 + 1 };
var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
projector.unprojectVector( vector, camera );
var raycaster = new THREE.Raycaster( camera.position, vector.sub( camera.position ).normalize() );
var intersects = raycaster.intersectObjects( cube );
if ( intersects.length > 0 ) {
console.log(intersects);
}
}
但 intersects.length 始终为 0!我究竟做错了什么?
非常感谢!
问候 - 科沙