CAJ | 학술논문

为了提高粒子系统动态模拟效果，笔者以喷泉水流为研究对象，基于粒子系统理论，运用物理动力学原理构建喷泉粒子的运动系统模型。采用 OpenGL“直线元”作为基本粒子几何体元，与现有的离散单元如元球、立方体、矩形等比较，其实时性明显提高。为消除三维场景中部分粒子的不可见性，采用呈“△”形的线段组合单元实现水珠的动态模拟。为使喷泉水珠聚束表现喷泉断断续续的柱体形状，还提出利用伪粒子黏度法及 OpenGL的混合技术，使喷泉水流的真实感进一步加强。实验表明，文中所采用的改进方法有效地提高了喷泉水流的时效性。
위료제고입자계통동태모의효과，필자이분천수류위연구대상，기우입자계통이론，운용물리동역학원리구건분천입자적운동계통모형。채용 OpenGL“직선원”작위기본입자궤하체원，여현유적리산단원여원구、립방체、구형등비교，기실시성명현제고。위소제삼유장경중부분입자적불가견성，채용정“△”형적선단조합단원실현수주적동태모의。위사분천수주취속표현분천단단속속적주체형상，환제출이용위입자점도법급 OpenGL적혼합기술，사분천수류적진실감진일보가강。실험표명，문중소채용적개진방법유효지제고료분천수류적시효성。
For the purpose of improving the dynamic simulation effect of the particle system,this paper focuses on studying the dynamic simulation of the fountain flow based on particle system theory.A fountain particle motion model is constructed by applying the physical dynamic principle.The bead particle is structured by using OpenGL“short line"as the basic particle voxel,which performs better in real-time processing compared with other bead particles,such as sphere,cube and square.To avoid the invisibility of partial particles in 3D scene,the technique of the“△"line combination unit is adopted to implement the dynamic simulation of water beads.In order to agglutinate lots of particles to form water beads with different sizes and show the intermittent cylinder shape of the fountain,the fake particle viscosimetry and the blend operation in OpenGL are also adopted,making the fountain flow more realistic.Experiment indicates that the proposed method can effectively improve the reality and real-time performance of the fountain flow.