CAJ | 학술논문

针对已有光影技术在海洋虚拟现实场景领域应用不足，文中从海洋虚拟场景构造及海面光影动态渲染两部分，实现了海面及其周边环境不同时刻的光线明暗模拟。利用GPU的可编程绘制流水线，采用CG编程语言，将OpenGL光照模型计算、ShadowMap算法及PCF算法应用到场景中，实现多类型光源下的全天候24小时海面场景光影动态渲染。实验结果表明，该研究适用于动态海面的真实感绘制，海面光影渲染效果真实且具有良好的交互性、动态性，可广泛应用于海洋虚拟现实领域。
침대이유광영기술재해양허의현실장경영역응용불족，문중종해양허의장경구조급해면광영동태선염량부분，실현료해면급기주변배경불동시각적광선명암모의。이용GPU적가편정회제류수선，채용CG편정어언，장OpenGL광조모형계산、ShadowMap산법급PCF산법응용도장경중，실현다류형광원하적전천후24소시해면장경광영동태선염。실험결과표명，해연구괄용우동태해면적진실감회제，해면광영선염효과진실차구유량호적교호성、동태성，가엄범응용우해양허의현실영역。
Aiming at the shortage of virtual reality lighting and shadow rendering effect of ocean scene,realize the multi-time dynamic lighting simulation of ocean scene including the virtual ocean scene building and dynamic sea surface lighting-shadow rendering. Using the GPU programmable rendering pipeline and CG programming language,the research applies OpenGL illumination model,ShadowMap algorithm and PCF algorithm to the scene for simulating the lighting-shadow scene under multi-lights in 24 hours. The experimental re-sults show that,the rendering of the sea shadow effect is real,interactive and dynamic,so it can be widely used in the field of ocean virtu-al reality.