Research On Realistic Rendering Algorithm Of Interactive Details Of Raindrops And Water Surface

The simulation of natural scenes has always been an important aspect of virtual reality.In this experimental study,simulation research in the virtual field will be carried out for the daily rain phenomenon.The virtual simulation technology of rain scenes is widely used in different directions such as film and television animation,online games,virtual roaming experience,but the current research in this field still has many shortcomings and deficiencies.It is not only the technical level of the technicians,but also the inadequate experimental equipment and the unsatisfactory simulation results.At the same time,the research in many laboratories tends to be rather one-sided.Compared with reality,when raindrops falling from the sky collide with the water surface,multiple phenomena will occur simultaneously.Therefore,this paper proposes a realistic rendering method of the interactive details of raindrops and water surface that meets the real-time requirements,and realizes the simulation of the interactive phenomenon of raindrops and water surface in multiple scenes.First,the previous research was comprehensively sorted,and the advantages and disadvantages of various methods were compared and analyzed.Finally,it was determined that the experiment uses a particle system to complete the drawing of raindrops.In the experiment,it is connected with the experiment from the real-time point of view,and finally uses the projection grid to draw the water surface scene in the rain scene,and proposes a new method to solve the problem of traditional projection grid construction of the water surface.Secondly,in view of the lack of realism of details when the raindrops interact with the water surface in the rain scene,a variety of phenomena generated when the raindrops interact with the water surface are simulated at the same time,the wave height is constrained by the introduction of energy conservation,and the two-dimensional wave equation is used and numerically solved.To simulate the ripple effect generated when raindrops collide with the water surface;at the same time,the Lipschitz algorithm is introduced to determine whether the water waves generated when the raindrops contact the water surface meet the conditions for splashing,and the particle system is used to simulate the splashing effect generated when the raindrops contact the water surface.The raindrop splash particles are subjected to force analysis,and their propagation path is tracked and calculated.Third,in terms of the optical effects of the water surface and raindrops in the rain scene,the method of rendering to the texture of the object is adopted to achieve the optical effects of raindrops and water surface in different situations.The Blinn-phong illumination model is introduced and mixed to obtain a comprehensive raindrop.With the lighting effect on the water surface.Finally,after the investigation and finishing,enter the experimental link: design and implement the rain scene and water surface interactive simulation system on the Unity3D engine.All experimental results are obtained through real-time simulation under the existing conditions in the laboratory.