Research On Multi - Platform Virtual Simulation Key Technology Based On Unity3D

Virtual reality technology has been widely used in many fields of virtual reality technology brings immersive real-life experience. In the virtual reality technology three-dimensional modeling of large scenes and fast roaming are key issues, challenges. In this paper, the island villas Virtual Tour system development as the basis, based on Unity3D island villas Virtual Tour key technologies studied, asynchronous loading optimization algorithms and optimization algorithms Quartet in memory to quickly recall aspects. First get through fieldwork actual data field, and then mapping project modeling and model based on actual data, and then combined platform comes Unity3D physics function, making a three-dimensional simulation of island villas tour program. The program uses real scene data, based on field drawn to construct three-dimensional models, to meet the three-dimensional virtual reality and three-dimensional simulation of the indicators.For 3D program in memory consumption, rendering the face of computer consumption requirements, proposed several algorithms for optimization ideas and implement them through the process. First, build a good model for the corresponding scene, then according to the actual needs of Zero Island (virtual development projects) to complete the overall program development, and then let the program run in the appropriate platform above test, while running tests on memory and the graphics card consumption situation, in order to propose appropriate solutions and algorithms. These algorithms are based on the theoretical basis of 3D, from the reality program, the computer program can effectively reduce the consumption of memory and graphics. At the same time many of the special effects such as explosions, a mirror reflective effect of these algorithms can improve the user experience, but also can be achieved by Unity3D platform out.This paper realized in the system by pressing the navigation path parade, use the mouse wheel dynamic observation object technology. To speed up the computing speed and improved interactivity, use of technology to simplify polygon performance level of detail textures, to achieve the three levels of detail models. Using dynamic occlusion technique to establish a three-dimensional block area, and placed in the sight of the character of the camera, you can reject the model need not be displayed when the characters move, reducing the amount of computation. This article addresses the main problem is how to build a three-dimensional roaming system, which will involve the relevant technologies and concepts and how to implement systems to integrate irregular shape modeling, optimization effects model to make it more of a high fidelity.This paper aims to achieve three-dimensional modeling and mapping software 3DMAX to Unity 3D virtual reality development platform to discuss and implement a virtual reality in the outdoor and indoor roam roaming system, the key application technology, and research how to solve the roaming process navigation problems path selection algorithm to improve the user’s sense of immersion and enjoyment at the same time enhance the interaction between speed and quality of communication between the user and virtual reality systems.