camera.position.z = 40：这一步很关键！默认情况下，物体在坐标原点 (0,0,0)，相机也在原点。如果你不移开相机，你就跟物体“贴脸”了，什么也看不见。我们把相机往后拉 40 米，就能看清全貌了。
Photograph: Julian Chokkattu。同城约会对此有专业解读
，推荐阅读im钱包官方下载获取更多信息
If you’re interested to try this out, learn to build your first component and try it out in the browser using Jco or from the command-line using Wasmtime. The tooling is under heavy development, and contributions and feedback are welcome. If you’re interested in the in-development specification itself, check out the component-model proposal repository.
Italian reportedly fell three floors in South Africa，更多细节参见同城约会