CAJ | 학술논문

针对火焰难于精确描述的不规则、不确定动态特性，提出了一种改进的实时火焰模拟算法。在初始化火焰粒子的位置属性时，设计半球面火焰粒子发射器，优化火焰粒子的初始位置；将火焰模型设计成5层颜色模型，简化火焰的复杂运动；采用Direct3D点精灵技术，提高系统的时间性能；分层控制运动场的运动，实现火焰形状的动态改变。同时启动 Alpha混合处理，使火焰在不同颜色层次混合，极大地增强了火焰的真实感。实验结果表明，改进后的算法大大减少了粒子数量，降低系统运行时间，达到了实时的要求，而且所生成的火焰具有较强真实感的颜色变化和动态摇曳等特性。
침대화염난우정학묘술적불규칙、불학정동태특성，제출료일충개진적실시화염모의산법。재초시화화염입자적위치속성시，설계반구면화염입자발사기，우화화염입자적초시위치；장화염모형설계성5층안색모형，간화화염적복잡운동；채용Direct3D점정령기술，제고계통적시간성능；분층공제운동장적운동，실현화염형상적동태개변。동시계동 Alpha혼합처리，사화염재불동안색층차혼합，겁대지증강료화염적진실감。실험결과표명，개진후적산법대대감소료입자수량，강저계통운행시간，체도료실시적요구，이차소생성적화염구유교강진실감적안색변화화동태요예등특성。
It is difficult to accurately describe the dynamic characteristics of an irregular uncertain on the flame,an improved algorithm for simulating real-time fire based on classic particle system is presented.Firstly,when new particles are initial-ized,a hemispherical flame particle emitter is designed to optimize their positions.Then,in order to increase time perform-ance,five color models are required to simplify those complex actions of fire by Nguyen′s blue core model,and the midpoint wizard of Direct3D technology is used.To solve the problem of the reality of flame simulation,dynamic motion fields are hi-erarchically controlled to realize the dynamic change in flame shape,and alpha blending levels of the flame in different colors mixed are started.Experimental results show that the real-time and reality are optimized,and the performance is significant-ly increased.