Bent Normals and Cones in Screen-space

Klehm, Oliver; Ritschel, Tobias; Eisemann, Elmar; Seidel, Hans-Peter

Bent Normals and Cones in Screen-space

Files

177-182.pdf (13.63 MB)

Date

2011

Authors

Klehm, Oliver
Ritschel, Tobias
Eisemann, Elmar
Seidel, Hans-Peter

Publisher

The Eurographics Association

Abstract

Ambient occlusion (AO) is a popular technique for real-time as well as offline rendering. One of its benefits is a gain in efficiency due to the fact that occlusion and shading are decoupled which results in an average occlusion that modulates the surface shading. Its main drawback is a loss of realism due to the lack of directional occlusion and lighting. As a solution, the use of bent normals was proposed for offline rendering. This work describes how to compute bent normals and bent cones in combination with screen-space ambient occlusion. These extensions combine the speed and simplicity of AO with physically more plausible lighting.

        @inproceedings{:10.2312/PE/VMV/VMV11/177-182
,
booktitle = {Vision, Modeling, and Visualization (2011)
},
editor = {Peter Eisert and Joachim Hornegger and Konrad Polthier
},
title = {{Bent Normals and Cones in Screen-space
}},
author = {Klehm, Oliver and 
Ritschel, Tobias and 
Eisemann, Elmar and 
Seidel, Hans-Peter
},
year = {2011
},
publisher = {The Eurographics Association
},
ISBN = {978-3-905673-85-2
},
DOI = {/10.2312/PE/VMV/VMV11/177-182
}
}