我是三个.js 菜鸟。我正在玩这个示例 http://threejs.org/examples/css3d_periodictable.html
我想知道单击特定元素的时间，查看了几个示例并添加了下面的代码 在函数内设置断点，即使我在元素内单击，intersects.length 也始终为 0。请帮忙！我错过了什么？提前致谢
function onDocumentMouseDown( event ) {
event.preventDefault();
controls.enabled = true;
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
//var vector = new THREE.Vector3( ( event.clientX / window.innerWidth ) * 2 - 1, - ( event.clientY / window.innerHeight ) * 2 + 1, 0.5 );
projector.unprojectVector( vector, camera );
var raycaster = new THREE.Raycaster( camera.position, vector.sub( camera.position ).normalize() );
var intersects = raycaster.intersectObjects( objects,true );
if ( intersects.length > 0 ) {
intersects[ 0 ].object.material.color.setHex( Math.random() * 0xffffff );
var particle = new THREE.Particle( particleMaterial );
particle.position = intersects[ 0 ].point;
particle.scale.x = particle.scale.y = 8;
scene.add( particle );
}
}