Sakai, MasahiroIchijo, NoriyukiDobashi, YoshinoriYamamoto, TshuyoshiRobert van Liere and Betty Mohler2014-01-312014-01-312008978-3-905673-66-1https://doi.org/10.2312/PE/VE2008Posters/013-016Many Web3D systems for managing 3DCG in the contents of HTML pages use fixed shaders for graphics API for real-time 3DCG rendering, so it is difficult to simulate the global illumination. We propose a solution to the problem of global illumination that uses a Web3D environment map in our proprietary Web3D format, "3DX" and the GPU shading language.Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Picture/Image Generation - Bitimap and Frame buffer operations I.3.7 [Computer Graphics]: Three-Dimentional Graphics and Realism - Color, Shading, Shadowing and Texture