计算机仿真
計算機倣真
계산궤방진
COMPUTER SIMULATION
2014年
5期
13-16,21
,共5页
海浪绘制%水下光影%动态天空%海战场景建模
海浪繪製%水下光影%動態天空%海戰場景建模
해랑회제%수하광영%동태천공%해전장경건모
Rendering of ocean wave%Underwater light effects%dynamic sky%modeling of sea battle
针对具有沉浸感的动态海战场景建模仿真需求，提出了基于同心圆网格模型和改进FFT方法的大规模海浪绘制方法，提高了大规模海浪模拟的真实感；提出了基于相机镜头特效同时实现体积光效果和水波折射效果的方法，增强了水体光影效果真实感；提出了基于多视角实时大气渲染算法的动态天空建模方法，实现了所有视角点、所有视域和多重散射效果。仿真应用表明，以上关键技术能较好解决动态海战场景建模问题，在可视化作战仿真中具有较高应用价值。
針對具有沉浸感的動態海戰場景建模倣真需求，提齣瞭基于同心圓網格模型和改進FFT方法的大規模海浪繪製方法，提高瞭大規模海浪模擬的真實感；提齣瞭基于相機鏡頭特效同時實現體積光效果和水波摺射效果的方法，增彊瞭水體光影效果真實感；提齣瞭基于多視角實時大氣渲染算法的動態天空建模方法，實現瞭所有視角點、所有視域和多重散射效果。倣真應用錶明，以上關鍵技術能較好解決動態海戰場景建模問題，在可視化作戰倣真中具有較高應用價值。
침대구유침침감적동태해전장경건모방진수구，제출료기우동심원망격모형화개진FFT방법적대규모해랑회제방법，제고료대규모해랑모의적진실감；제출료기우상궤경두특효동시실현체적광효과화수파절사효과적방법，증강료수체광영효과진실감；제출료기우다시각실시대기선염산법적동태천공건모방법，실현료소유시각점、소유시역화다중산사효과。방진응용표명，이상관건기술능교호해결동태해전장경건모문제，재가시화작전방진중구유교고응용개치。
The rendering of immersive dynamic scene is one of the most challenging tasks in modeling and simula-tion of sea battle. A method for real-time realistic rendering of ocean wave scene was proposed in the paper. By the method, a grid of concentric circles was developed to replace ocean surface geometry and a FFT method was devel-oped to compute height of the sea wave. The sense of reality in sea battle was improved. A method for volume light effects and water wave refraction effects was proposed. By the method, a camera lens of effect was used in the sea battle of scene. The sense of reality of water, light and shadow in naval battle was improved. A method for modeling of real-time realistic rendering of dynamic sky was proposed. By the method, Multi-View was used in real-time real-istic rendering. Multi-view effects, more visual effects and multiple scattering effects have been realized in sea bat-tle. Simulation and practice results show that the key technologies of the system can solve the problem of modeling and simulation of sea battle and have important value in virtual combat simulation.
