Speaking of virtual reality engines, the anecdote engine? The engine of a car airplane is to provide power to the car, and the virtual reality engine is a solution to provide strong support for this virtual reality technology. Full of fog? Specifically speaking, virtual reality technology is a relatively general term. From the beginning of virtual reality, Chinese and foreign heroes have developed various virtual reality technology solutions for virtual reality, with hardware and software, and their final The goal is the same, but the method direction is different from the focus. In order to implement the solution they have developed, they have to create a hardware system or software system that implements this solution, and the implemented software system is the virtual reality engine.
360 degree panoramic virtual : The way to achieve is Flash and Java. In fact, it is virtual reality technology, it is far-fetched, because he is actually a panoramic picture, but you can control the rotation to watch. But this has become its advantage. The reason is that his picture is a panoramic camera captured in a real scene (or rendered picture), absolutely true, although he can not roam, can only be fixed to watch, but his file is small, the production cycle cost is relatively small, so this is Some customers (such as hotels, etc.) who require real restoration but do not need any roaming interactions are very useful. Vrml technology: the originator of the virtual reality engine. Vrml is actually a set of virtual reality language specifications. It is characterized by small files and relatively free flexibility. It is more suitable for network communication. However, due to its age, the picture effect is relatively poor, but it is not very effective for the network. (for example, industrial aspects), you can use it. There are two well-known engines for Vrml: Cortona: There are dedicated modeling tools and animated interactive production tools. He also supports other modeling software to make the model files that are guided and can be optimized. The files are small and interactive. Strong, more suitable for industrial works. Bitmanagement Software (BS): The picture is better than Cortona, but it doesn't interact with it. It doesn't have a dedicated modeling tool, so you have to use other modeling software to make the model, so the file is bigger than Cortona, but his simple animation relative to Cortona. Interactive production tools, so BS is more suitable for roaming works that are not very demanding.
WireFusion (referred to as WF) : It is a super upgraded version of Vrml (hopefully the producers can't hear me), using Java technology, good cross-platform, good effect, small file, suitable for online, interactive function has become many advances Customized modules, although have certain limitations, but do some very complex interactions, can be quite fast, but do not support some more complex screen effects, so WF is more suitable for product display works. EON: The production method is similar to WF, but it has more modules than WF, more functions, and better effect than WF, but the file is larger, and the plug-in is larger, suitable for stand-alone display. Virtools (VT): The French heavyweight engine, the designated engine of the Expo, can explain his weight. VT was originally defined as the game engine (balanced ball played, VT works), but later mainly made virtual reality. VT has good scalability, can be customized (as long as it can be programmed) can be connected to peripheral hardware (including virtual reality hardware), has its own physics engine, and interaction is almost omnipotent. It's similar to WF or EON, but its modules are very thin, so you can have a lot of freedom and you can make functions that the first two can't. Shader support (although limited) works well. He can make works in any field. Because the network plug-in has functional limitations, if you put it on the network, the function production will be slightly limited, but the single machine does not matter.
Quest3D (Q3D for short): Q3D also has a VT-like function module (but it seems more trivial, the production is more complicated), so the interaction is indifferent, Q3D comes with a powerful real-time renderer, the picture is very good, and some can even It is comparable to the renderings. However, the file is larger than VT and is suitable for stand-alone works. Unity3D (U3D for short): the rising star of virtual reality, with the paving of the previous big brother engine,
U3D is defined as a high-end large engine together and has received extensive attention in the industry. At first it was only possible to run on a Mac system and later expanded to a Windows system. What is commendable is that he is free (for individuals not for commercial use). U3D comes with a lot of tools for easy production. Interaction is also omnipotent, but it has no modules, the functions are almost all code-based, so you have to have a good programming language, which also limits a large group of people, the picture effect is better than Q3D. In addition, he can easily link to the database, so that you can do more online work. In general, like VT, he can make works in any field. VRP: China's large domestic engine, the masterpiece of Zhongshidian. After several generations of upgrades, some effects such as HDR motion blur have been supported. His positioning is relatively clear: real estate, so if you use it to do real estate, you can make a good real estate work almost foolish. Recently, network plug-ins and dedicated physics engines have also been developed, which may make up for some functional deficiencies, so that he can expand his application field. WebMax: Several domestically produced engines that are second only to VRP, it is quite representative (other engine makers don't hit me). The effect is better than Vrml, the file is small, and the interaction also needs to be implemented in code. WebMax is suitable for some web product demos with a slightly simpler function. Unreal Development Kit (UDK): In fact, it is not a virtual engine. It is a game engine. It is the game engine of Unreal Tournament. It is currently in version 3. Although it is not a dedicated virtual engine, the Unreal Tournament has a map editor. It's omnipotent, and his picture is so good, and can be packaged into an exe installation package, so some people apply it to the production of virtual reality works. Since it is a game engine, there is no need to say much about physical simulation. There is no problem with interaction. UDK does not have a webpage plugin, so it can only be a stand-alone work (again, it is not suitable for the online version). Crysis: Everyone knows the name. The Crysis, like UDK, is also a game engine. Because it also has a map editor (named SandBox), its picture is really a peak, so the same, there are people. Take it to make a virtual work. As for the function and the picture, I don't want to say anything more. I know it when I play the Crysis. However, because the documents are too large, it is more suitable for real estates and other virtual works that require super high effects. The above introduced some virtual engines. Of course, the times are developing, the society is improving, and the virtual engines are emerging one after another. I will find one for a while, but I can't finish it, but these are all well-known engines.
Through the introduction of the above and the previous article, everyone should take a higher level of understanding of virtual reality. In fact, don't think that virtual reality is far away from us. It is a very high technology. In fact, it is around us, but you don't care. There are many big websites and big companies that are using virtual reality technology. Virtual reality is not complicated, you can play it yourself. I hope that everyone will get into contact with virtual reality and contribute to its development.
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