The Metaverse is getting a lot of attention from the market in 2021. Many companies have entered the Metaverse, including well-known international technology companies such as Meta, Microsoft, Nvidia, and more. In addition to international giants, domestic giants also have different levels of layout, such as Tencent , ByteDance, Alibaba and so on. Today, the development of the metaverse is still under exploration, and there is still no exact definition, but we can identify some key technologi...