Progressive Geometric View Factors for Radiative Thermal Simulation

Date

2020-07-31

Journal Title

Journal ISSN

Volume Title

Publisher

2020 International Conference on Environmental Systems

Abstract

Radiative heat transfer or light transport are primarily governed by geometric view factors between surface elements. For general surfaces, calculating accurate geometric view factors requires solving integrals via quadrature methods. For complex scenes with many objects and obstacles such calculations are compute-intensive, preventing real-time simulations. Our progressive approach takes as input objects represented by surface triangle meshes and generates as output a dense square matrix of geometric view factors whose accuracy improves over time. The technical ingredients of our approaches (hybrid triangle-based and point-based quadratures, tree-based data structure, segment-based probing and prediction) are selected to best trade accuracy for time.

Description

Vincent Vadez, Dorea, FR
François Brunetti, Dorea, FR
Pierre Alliez, National Institute for Research in Computer Science and Automation/Institut national de recherche en informatique et en automatique (INRIA), FR
The proceedings for the 2020 International Conference on Environmental Systems were published from July 31, 2020. The technical papers were not presented in person due to the inability to hold the event as scheduled in Lisbon, Portugal because of the COVID-19 global pandemic.

Keywords

Geometric view factors, Polygon-based adaptive quadrature, Bounded centroidal Voronoi diagram, Prediction

Citation