The volume rendering has become an important technique in many applications along with hardware development. Understanding and perception of volume visualization benefit from visual cues which are available from shading. Better visual cues can be obtained from global illumination models but it's huge amount of computation and extra GPU memory need cause a lack of interactivity. In this paper, in order to improve visual cues on volume rendering, we propose an image space occlusion shading model which requires no additional resources.
Image Space Occlusion Shading Model for Iso-surface Volume Rendering
Seokyeon Kim, Sangbong Yoo, Jang Y
Journal of Korea Computer Graphics Society 2015