Path-based Controllable Fluid Deformation Simulation

With the great satisfaction of people’s material life,people’s spiritual needs are also increasing,and emerging technologies such as virtual reality are gradually approaching people’s lives.However,although virtual reality systems have achieved the "immersion" and "interaction" nowadays,the concept of "conception" is still vague.In this regard,this article proposes the concept of constraints.The first step of "conception" is to impose certain constraints on things,and the second step is to connect different things according to a unified world constraint.The research on physical constraints and path constraints as basic constraints has begun from this.Meanwhile,considering the extensive application of physics-based fluid control in natural phenomenon simulation,animation design,film and television special effects,the path-based controllable fluid deformation simulation is also considered to have broad development prospects and broad practical value.In the beginning,this paper discusses the development of fluid simulation methods at home and abroad and the research trends of physics-based fluid simulation.Subsequently,the basic theories and methods of physics-based fluid simulation are introduced,and the mesh-based Euler method,the particle-based Lagrangian method,and the semi-Lagrangian method are briefly analyzed and compared.Next,in view of the limitations of the existing path methods,this paper propo ses a path-based controllable fluid deformation simulation method.This method divides the entire process of controlling fluid deformation and finally simulating the target model into three modules: path drawing,parameter conversion and fluid control.It effectively solves the problems that traditional path methods require preset paths and cannot be drawn in parallel,and makes up for the shortcomings of traditional fluid control methods that the uneven distribution of the simulated fluid and the poor simulation results of sharp target models.Finally,through the comparison experiments of smoke fluid simulation effects and the detail retention effect analysis experiments of the deformation process,multiple parameters involved in this method are analyzed and the feasibility of the method and its applicability to different sampling point scale models are verified.