Research And Implementation Of Lightweight Technology For 3D Configuration Display Of Mobile Terminal

Configuration software is a tool for rapid construction of visual monitoring.The visualization display of 3D configuration software is generally more on the PC.With the popularity of mobile devices,there is a need to render and display the configuration monitoring screen on the mobile.In order to meet the cross platform,it is generally built based on the web platform.Due to the network and hardware limitations of mobile devices and the weak computing power of mobile web browsers,3D models cannot be rendered quickly and efficiently.In order to optimize the data loading and rendering process of the threedimensional model,this thesis makes a lightweight processing design for the process of displaying the three-dimensional configuration picture in the mobile terminal web configuration system,and mainly completes the following work.Firstly,aiming at the geometric information format gltf selected in this thesis,the gltf model is lightweight based on grid merging.Subsequently,the limitations of applying mesh merging alone under the characteristics of simple material of industrial model are pointed out,and a composite optimization scheme of mesh merging combined with material sharing is proposed,which successfully reduces the number of meshes of 3D model,and further reduces the model volume combined with Draco algorithm.Secondly,the 3D scene rendering on the web platform is optimized,the LOD level selection strategy based on device performance is realized,and the lowprecision model is selected for rendering at the mobile end.The ray pickup optimization is implemented based on the front-end octree to improve the interaction speed,and the browser rendering performance is further accelerated through JS multithreading engine,browser cache and non real-time refresh strategy.Finally,based on the above research,the front-end construction of the threedimensional configuration system is realized,the front-end architecture based on the node middle layer is used to accelerate the front-end data processing speed,the design of each functional module is introduced,and carry out the functional test and non functional test of the system.The results show that the three-dimensional configuration display has excellent loading and rendering performance on the mobile terminal,and achieves considerable lightweight effect.