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Research On Virtual Marine Environment And Swinging Posture Of Floating Objects

Posted on:2018-01-01Degree:MasterType:Thesis
Country:ChinaCandidate:X GaoFull Text:PDF
GTID:2348330542990838Subject:Engineering
Abstract/Summary:PDF Full Text Request
In recent years,virtual reality technology is becoming a popular research.Virtual reality technology research focuses on real-world scenes more realistic to reach the virtual scene.The focus of this paper is to improve the virtual scene simulation.In this paper,the ocean scene modeling,light rendering technology and floating material tumbling attitude analysis and research.First of all,the wave modeling is the key to the drawing of the ocean scene.For the large-scale marine environment,the giant waves are mainly affected by the wind and the phenomenon of multi-layer waves is superimposed.It is proposed to use the improved Phillips wave spectrum and Perlin noise stratification.Model,and the grid scene division model based on the viewpoint distance is proposed.The meshing of the center line of the human eye line is more fine,the line of sight is rarely focused on the surrounding area of the screen.The degree of reality of the scene is guaranteed during the change of view.Secondly,the ocean scene includes the sea surface and thescene below the sea,the key point of the simulation under the sea is the simulation of the effect of submarine light and shadow,we found the existing photon map clustering method can't reflect the number of refraction according to line of sight photon map problem,The photon-image clustering method of the adaptive line of sight allows the system to divide the photon graphs into three levels according to the number of refraction times of the line of sight reflection.The three grades use different photon clustering densities to concentrate the resources in more useful places and reach the system resources The purpose of efficient use,the experimental method to improve the effect of light and shadow at the same time in the system calculation has significantly reduced.Finally,the ocean scene also includes a simulation of the state of the float.Based on the wave modeling and the light and shadow rendering technology proposed in this paper,we find it is difficult to apply the floating model to the irregular floating,A multi-center force floating model is proposed to improve the simulation of the attitude and direction of floating objects.
Keywords/Search Tags:Wave modeling, drawing technology, photon mapping, floating model
PDF Full Text Request
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