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IEICE Transactions on Information and Systems 2008 E91-D(1):124-131; doi:10.1093/ietisy/e91-d.1.124
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Copyright © 2008 The Institute of Electronics, Information and Communication Engineers

Regular Section -- Papers -- Computer Graphics

Real-Time Point-Based Rendering Using Visibility Map

Byeong-Seok SHIN1, Dong-Ryeol OH1 and Daniel KANG1

1 The authors are with the Department of Computer Science and Information Engineering, Inha University, Inchon 402–751, Rep. of Korea. E-mail: bsshin{at}inha.ac.kr; mysticodoi2{at}hotmail.com; rich5264{at}hotmail.com


  Abstract

Because of its simplicity and intuitive approach, point-based rendering has been a very popular research area. Recent approaches have focused on hardware-accelerated techniques. By applying a deferred shading scheme, both high-quality images and high-performance rendering have been achieved. However, previous methods showed problems related to depth-based visibility computation. We propose an extended point-based rendering method using a visibility map. In our method we employ a distance-based visibility technique (replacing depth-based visibility), an averaged position map and an adaptive fragment processing scheme, resulting in more accurate and improved image quality, as well as improved rendering performance.

Key Words: display algorithms, point-based rendering, deferred shading, hardware accelerated graphics

Manuscript received June 6, 2007.


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