Research On Virtual Scene Construction And Interactive Technology Of Cultural Theme Park

With the rapid development of computer graphics and computer hardware and software,current virtual reality technology has shown unprecedented vigor, which is widely used int industrial simulation, interior design, military aerospace, emergency deduction, film entertainment and many other aspects. China is one of the four ancient civilizations with a glorious history of five thousand years. And for Chinese people, it has always been an everlasting theme to inherit and promote our outstanding national culture. According to this kind of situation, this paper completes a three-dimensional virtual park software about Chinese culture theme by using virtual reality technology. A more complete and effective solution is proposed during the design and implementation procedure of this software in the way of researching optimization technique and innovating somatosensory interactive control technology for the current three-dimensional virtual scene. The main details of the work are as follows:(1)Four sub parks which give full play to the diversification of Chinese traditional culture are designed from four aspects: culture, history, music, and the elements. Completing the three-dimensional model construction of each sub puck by the 3ds Max modeling software; to ensure the model fidelity, optimizing the model in the comprehensive use of advertising boards, baking and other related technologies; importing the three-dimensional virtual scene into Unity 3d engine to achieve the real-time driving; details expression model is conducted through the viewpoint LOD skills; collision detection of the model is optimized by using streamline grids instead of complex models.(2)Conducting a in-depth investigation on the current human skeleton node filtering algorithm and human action recognition algorithm. Improving EWMA filtering algorithm onthe basis of large number of domestic and foreign related literatures, the pretreatment of the human skeleton nodes provided by the Kinect V2 sensor has been completed, which makes the node data more reliable and stable; the customized BP neural network model is constructed,the initial parameters of the model are set up and the training of the sample set is completed,which provides a theoretical basis for the development of the software.(3)Complete the development of the 3D virtual campus software of Chinese cultural theme park from the aspects of core functions and auxiliary functions. the cursor system used for graphical user interface interaction and the action recognition function for scene roaming control are realized, which make up the interactive module of the software; add the function of character model matching and multi-person mode for the software, greatly enhance the immersion of the software; after the completion of the software development, the software testing and user experience work is carried out.