A Two-Pass Solution to the Rendering Equation: A Synthesis of Ray Tracing and Radiosity Methods
John R. Wallace, Michael F. Cohen, Donald P. Greenberg
Computer Graphics (Proceedings of SIGGRAPH 87), July 1987, pp. 311--320.
Abstract: View-independent and view-dependent image synthesis techniques, represented by radiosity and ray tracing, respectively, are discussed. View-dependent techniques are found to have disadvantages for calculating the specular component of illumination and view-independent techniques for the diffuse component. Based on these observations a methodology is presented for simulating global illumination within complex enviroments using a two-pass approach. The first pass is view-independent and is based on the hemi-cube radiosity algorithm, with extensions to include the diffuse reflection and transmission. The second pass is view-dependent and is based on an alternative to distributed ray tracing in which a z-buffer algorithm is used to sample intensities contributing to the specularly reflected or transmitted intensity.
Keyword(s): radiosity, distributed ray tracing, z-buffer, global illumination, view-dependence, view-independence
@inproceedings{Wallace:1987:ATS,
author = {John R. Wallace and Michael F. Cohen and Donald P. Greenberg},
title = {A Two-Pass Solution to the Rendering Equation: A Synthesis of Ray Tracing and Radiosity Methods},
booktitle = {Computer Graphics (Proceedings of SIGGRAPH 87)},
pages = {311--320},
month = jul,
year = {1987},
}
Return to the search page.
graphbib: Powered by "bibsql" and "SQLite3."