Approximating a full Bidirectional Reflectance Distribution Function from a slice

Approximating a full Bidirectional Reflectance Distribution Function from a slice: Creating a BRDF trough solids of revolution

Tramontina, Gino (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Computer Graphics and Visualisation)

Marroquim, Ricardo (mentor)
Chen, Y. (mentor)
Pelsmaeker, D.A.A. (graduation committee)

Delft University of Technology

Computer Science and Engineering

CSE3000 Research Project

2023-06-25

Bidirectional Reflectance Distribution Functions, BRDFs, describe the reflectance of light on a ma-terial, and are widely used in computer graphics to render materials. Acquiring a full measured BRDF can be costly and time consuming, so this research aims to answer the question ”How can we approx-imate a full BRDF from a single slice (in-plane BRDF)?”. Outlined in this paper is an algorithm that uses solids of revolution to approximate a full BRDF from a single slice. The algorithm finds sub-curves of the slice, creates solids of revolution for each, normalizes the data, and merges the solids while removing overlapping data. The resulting solid, described by a list of points using a Carte-sian coordinate system, represents the full, three-dimensional BRDF.

BRDF
solid of revolution
approximation algorithm

http://resolver.tudelft.nl/uuid:750cbde5-5762-4c27-b4dd-933e60c630ef

Student theses

bachelor thesis

© 2023 Gino Tramontina