Point-Based Light Transport for Participating Media with Refractive Boundaries
Loading...
Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Illumination e ects in translucent materials are a combination of several physical phenomena: absorption and scattering inside the material, refraction at its surface. Because refraction can focus light deep inside the material, where it will be scattered, practical illumination simulation inside translucent materials is di cult. In this paper, we present an a Point-Based Global Illumination method for light transport on translucent materials with refractive boundaries. We start by placing volume light samples inside the translucent material and organising them into a spatial hierarchy. At rendering, we gather light from these samples for each camera ray. We compute separately the samples contributions to single, double and multiple scattering, and add them. Our approach provides high-quality results, comparable to the state of the art, with significant speed-ups (from 9x to 60x depending on scene complexity) and a much smaller memory footprint.
Description
@inproceedings{10.2312:sre.20161216,
booktitle = {Eurographics Symposium on Rendering - Experimental Ideas & Implementations},
editor = {Elmar Eisemann and Eugene Fiume},
title = {{Point-Based Light Transport for Participating Media with Refractive Boundaries}},
author = {Wang, Beibei and Gascuel, Jean-Dominique and Holzschuch, Nicolas},
year = {2016},
publisher = {The Eurographics Association},
ISSN = {1727-3463},
ISBN = {978-3-03868-019-2},
DOI = {10.2312/sre.20161216}
}