Ambient Occlusion in Screen-Space for Mesostructure Objects
In the traditional ambient occlusion algorithm for microstructures, the determination of occlusion is a time-consuming task. To improve the rendering speed, the paper proposes a screen-based ambient occlusion method. By using off-screen technique, only the visible points are used to determine the occlusion. Using the depth texture of the whole scene, the size of ambient occlusion can be quickly computed by the maximum of the block angle. The whole scene can be rendered using the deferred shading technology. Experimental results show that our method is more efficient than the available methods on computing the ambient occlusion. It does not need any pre-processing, and the time used for ambient occlusion determination is less than other methods.
Ambient Occlusion Screen-space Real-time Rendering
Liu Duoli Wang Lili Yang Zheng Zhao Qinping
School of Computer Science and Engineering Beihang University, Beijing, China
国际会议
温州
英文
676-681
2009-11-26（万方平台首次上网日期，不代表论文的发表时间）