javascript - Three.js 从子对象获取父对象(一组)

Question

在我的场景中，有许多对象组(Object3D)，并且我设置了一个系统，用于单击/悬停在它们上方以执行某些操作。当它使用光线转换器查找鼠标下方的对象时，它返回单个对象，而不是组(我需要的)。

我用来获取光标下的对象的代码如下所示:

raycaster.setFromCamera(mouse, camera);
clickobjstore = raycaster.intersectObjects(objects, true);

// The following doesn't work because intersects[0] is not the group, it's the object within the group!
for (j = 0; j < intersects[0].object.children.length; j++) {
    intersects[0].object.children[j].material.color.setHex(0x1A75FF);
}

Answer 1

Object3D class为您存储对parent-对象的引用:

var objectGroup = intersects[0].parent;

for (j = 0; j < objectGroup.children.length; j++) {
    objectGroup.children[j].material.color.setHex(0x1A75FF);
}