Simulation Research On Mixing Blood And Water In Virtual Surgery

With the rapid development of information technology,virtual reality technology has been extensively applied in various fields such as games,medical education,and aerospace.One essential application of the combination of medical education and virtual reality technology is virtual surgery,which provides a convenient surgical training platform for students and suitable surgical solutions for doctors to minimize surgical risks.Researchers worldwide have conducted extensive research to explore the possibility of virtual surgery in more common,complex,and demanding surgical scenarios.As bleeding is inevitable during an operation,it is crucial to prevent the blood from obstructing the doctor’s surgical field of view by flushing the wound.The scene of blood and water mixing runs through the entire operation process,making it crucial to add the blood and water mixed model to improve the fidelity of the virtual surgery and the practical effect of the trainee doctor.This paper studies the multi-fluid mixing simulation model and fluid surface reconstruction and rendering,and proposes a whole set of methods for blood and water mixing simulation.The specific content is as follows:Firstly,this paper studies the multi-fluid mixing simulation model,fluid surface reconstruction,and rendering,proposing a comprehensive set of methods for blood and water mixing simulation.The paper first studies the smoothed particle hydrodynamics method for the blood-water mixing model,where blood and water have different physical properties,such as viscosity coefficient,density,color,and fluid motion law.The proposed multi-component fluid mixing model based on the Lagrange method realizes the stable fusion of blood and water during the mixing process while ensuring a stable and realistic blood and water mixing simulation.Additionally,a new data structure is introduced to the model that combines bitmaps to speed up the search process,ensuring the stability of the simulation system and improving its real-time performance.Secondly,the paper also studies the blood-water mixed fluid surface rendering algorithm,and improving the fidelity of the simulation effect is also a significant goal of this research.Since blood is a red fluid and water is a transparent and colorless liquid,the research uses a faster and more delicate rendering effect-the Screen Space Rendering Algorithm-to realize the obvious gradient of color and transparency during the mixing process of the two fluids.The algorithm stores the fluid surface information in the texture map and realizes the reconstruction and rendering of the fluid surface based on the texture map.The paper further introduces the bilinear interpolation algorithm into the rendering algorithm to show more details in the small-scale fluid mixing process,making the rendered mixed fluid of blood and water more delicate and the rendering effect more realistic.