Enhanced BRDF Modeling Using Directional Volume Scatter Terms
Abstract
Microfacet BRDF models used in computer graphics and remote sensing commonly account for surface scatter and Lambertian volume scatter, but not directional volume scatter. This work proposes directional volume scatter modeling for enhanced BRDF performance. Five directional volume models, including a semi-empirical directional volume term are incorporated into the Cook-Torrance model to improve model agreement with measurements. Results suggest incorporating a semi-empirical, Beard-Maxwell, or Oren-Nayar directional volume term can improve model fit quality by as much as 78 for high volume scatter materials. These results are expected to lead to enhanced remote sensing and scene generation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 26, 2020
- Accession Number
- AD1110826
Entities
People
- Michael W. Bishop
Organizations
- Air Force Institute of Technology