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Data-based real-time petrochemical gas diffusion simulation approach on virtual reality

Virtual Reality & Intelligent Hardware 2023年第3期5卷 266-278页

作者： Min YANG Yong HAN Chang SU Xue LI Faculty of Information Science and Engineering Ocean University of ChinaQingdao 266100China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

Background Petrochemical products possess a high risk of flammability,explosivity,and toxicity,making petrochemical accidents exceedingly ***,disaster analysis,prediction,and real-time simulations have become important means of controlling and reducing accident *** This study proposes a complete real-time simulation solution of gas diffusion with coordinate and concentration data,which was mainly aimed at simulating the types of harmful gas leakage and diffusion accidents in the petrochemical *** rendering effect was more continuous and accurate through grid homogenization and trilinear *** study presents a data processing and rendering parallelization process to enhance simulation *** concentration and fragment transparency were combined to synthesize transparent pixels in a *** ensure the approximate accuracy of the rendering effect,improve the efficiency of real-time rendering,and meet the requirement of intuitive perception using concentration data,a weighted blended order-independent transparency(OIT)with enhanced alpha weight is presented,which can provide a more intuitive perception of the hierarchical information of concentration data while preserving depth *** study compares and analyzes three OIT algorithms-depth peeling,weighted blended OIT,and weighted blended OIT with enhanced alpha weight-in terms of rendering image quality,rendering time,required memory,and hierarchical *** Using weighted blended OIT with an enhanced alpha weight technique,the rendering time was shortened by 53.2%compared with that of the depth peeling algorithm,and the texture memory required was significantly smaller than that of the depth peeling *** rendering results of weighted blended OIT with an enhanced alpha weight were approximately accurate compared with those of the depth peeling algorithm as the ground truth,and there was no popping when surfaces passed through one

关键词： Real-time gas diffusion simulation Trilinear interpolation Order-independent transparency rendering parallelization

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