用来模拟骨骼 [page:Skeleton Skeleton] 的辅助对象. 该辅助对象使用 [page:LineBasicMaterial LineBasicMaterial] 材质.
const helper = new THREE.SkeletonHelper( skinnedMesh );
scene.add( helper );
[example:webgl_animation_skinning_blending WebGL / animation / skinning / blending]
[example:webgl_animation_skinning_morph WebGL / animation / skinning / morph]
[example:webgl_loader_bvh WebGL / loader / bvh ]
object -- Usually an instance of [page:SkinnedMesh]. However, any instance of [page:Object3D] can be used if it represents a hierarchy of [page:Bone Bone]s (via [page:Object3D.children]).
辅助对象使用 [page:Line Lines] 渲染的骨数组.
Read-only flag to check if a given object is of type [name].
构造函数传入的对象.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]