If it was a few years ago, Microsoft’s developers attended the annual Developer Conference (Xdc) and wanted to become sponsors, it might have attracted a lot of laughter. However, at this year’s Xdc conference, Microsoft not only gave a speech on the opening day, but also gave three. At the Xdc 2020 developer conference, Microsoft participated as one of the silver sponsors. In fact, Microsoft has been sponsoring linuxtag and other events for the past few years. In this activity, Microsoft’s performance was very brilliant. The three speeches mainly focused on Microsoft’s open source efforts in graphics / GPU. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen