CAJ | 학술논문

提出了一种实时全局光照的计算方法.该方法支持任意视点下动态光源的一次间接光照计算,并且物体表面材质可实时编辑,该算法预计算了各面片上的形状因子来解决遮挡问题,并记录形状因子较大的重要性面片作为间接光源.渲染时先从光源方向对场景记录了一个扩展的阴影图,包含了光源照射到的面片ID和其光通量,再根据采样好的间接光源来计算间接光照.使用CUDA,整个光照计算过程在GPU中完成,可以对静态场景进行实时渲染,并能达到逼真的渲染效果.
제출료일충실시전국광조적계산방법.해방법지지임의시점하동태광원적일차간접광조계산,병차물체표면재질가실시편집,해산법예계산료각면편상적형상인자래해결차당문제,병기록형상인자교대적중요성면편작위간접광원.선염시선종광원방향대장경기록료일개확전적음영도,포함료광원조사도적면편ID화기광통량,재근거채양호적간접광원래계산간접광조.사용CUDA,정개광조계산과정재GPU중완성,가이대정태장경진행실시선염,병능체도핍진적선염효과.
This paper presents a real-time global illumination computation method.One-bound indirect illumination can be computed by this method in dynamic light source and dynamic view point environment,and the materials of object surface can be modified in real-time.This method pre-computes the form factor of all faces to solve the occlusion problem and records some im-portance faces with larger form factor as indirect light sources.During the real-time rendering,the method generates an extend shadow map of the scene through the direction of light source,which records the id and flux of the faces,and then computes indirect illumination from the sampled indirect light sources.The whole indirect illumination computation is implemented in GPU using CUDA,so this method can render the static scene in real-time and reach the realistic result.