我正在寻找一种针对在three.js场景中添加的几何体/相机/灯光(things we add to scene)的事件处理方法?我已经搜索过谷歌,但没有找到相关内容。我尝试了简单的球体渲染,并试图在firebug中查看DIV内容,但只有一个画布,为画布添加任何onclick事件会使所有画布都受影响,也就是说,它不仅仅是针对球体或灯光的。有什么建议吗?
要在3D中实现交互性,您需要完成以下几个步骤:
听起来可能很复杂,但代码已经存在:
function onDocumentMouseDown( event ) {
event.preventDefault();
var vector = new THREE.Vector3( ( event.clientX / window.innerWidth ) * 2 - 1, - ( event.clientY / window.innerHeight ) * 2 + 1, 0.5 );
projector.unprojectVector( vector, camera );
var ray = new THREE.Ray( camera.position, vector.subSelf( camera.position ).normalize() );
var intersects = ray.intersectObjects( objects );
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 );
}
/*
// Parse all the faces
for ( var i in intersects ) {
intersects[ i ].face.material[ 0 ].color.setHex( Math.random() * 0xffffff | 0x80000000 );
}
*/
}