2
有没有什么方法捕获在粒子系统中的鼠标点击?网和Paticle其工作正常,但如果我叫intersectObject上ParicleSystem的交叉长度始终为0Ray与粒子系统相交对象(捕获鼠标点击粒子系统)
vector = new THREE.Vector3(mouse.x, mouse.y, 0.5);
projector.unprojectVector(vector, camera);
ray.set(camera.position,vector.subSelf(camera.position).normalize());
intersects = ray.intersectObjects(particleSystem);
console.log(intersects.length);
继承人与互动颗粒为例:https://dl.dropbox.com/u/4253186/three/examples/webgl_interactive_particles.html ,但它不是三的最新版本。 JS。