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老哥们圈今日热议《城市天际线2》最新消息，Greetings, Mayors!In this City，不少老老哥们表示盼着已久。

本条消**息来自官方渠道「Community Announcements」，为《城镇天际线2》老哥们整理如下要点。

Greetings, Mayors!In this City Corner, we will be diving deep into the technicalities of Cities: Skylines II, and more specifically, the performance of it all. We sat down with our technical director and lead programmer, who went into detail about the performance in general. In addition, we take a look at the two types of performance issues our team has looked into. We also talked about our plans for the future, and what they might look like when it comes to fixing the issues in performance, and a sneak peek at a new tool that we’re planning on adding in the next patch!With that being said, buckle up, let’s get right into it!What Is Performance? So, what does the term performance entail? In short, Cities: Skylines II has been made in a way that maximizes the utilization of multicore CPUs. This means that the base tech is in a good spot, but there are still a lot of things that we can do to improve it. A city builder like this is uniquely challenging; you can zoom in very close to look at your citizens in detail and then zoom out quickly to admire your whole city in one view. These different points of view can make things difficult when thinking about performance. In addition, the world is dynamic and constantly changing, which means that nothing can be precomputed ahead of time or baked in to help solve performance issues. Although there are many things that still require more investigation regarding performance, we see these challenges as intriguing and want to face them head-on, which is also the reason why we chose game development as our career path to begin with. We have also been collaborating with Unity引擎 to help pinpoint specific performance issues and help finding solutions to them. Now, let’s look at some of the things that are currently affecting performance, and what possibilities there are for fixing them. Rendering Performance (GPU)It might sound obvious that we have determined that the biggest impact on rendering performance is the number of triangles that need to be rendered, but there is more to it. Take the citizens’ teeth, as an example; the teeth of every visible citizen in your city used to be rendered, no matter the distance. Luckily, since the game is not about dentistry, the rendering of the teeth was fixed long ago, but there are still a lot of places that could use performance improvements.The easiest way we can start improving the rendering performance is by adding more and better Level of Detail (LOD) models. LODs are simplified versions of models that are swapped in when objects are far from the camera, since you don't need the same level of detail for a building on the horizon as one right in front of you. The simplified assets reduce the number of triangles the GPU has to process, and it also indirectly benefits shadow rendering performance, since shadows are drawn using the same geometry.Water simulation also runs on the GPU because it involves the same kind of massively parallel math that GPUs are built for to cal...

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