Reduced Aggregate Scattering Operators for Path Tracing

• Published in: Computer graphics forum Vol. 35; no. 7; pp. 461 - 473
• Main Authors: Blumer, Adrian, Novák, Jan, Habel, Ralf, Nowrouzezahrai, Derek, Jarosz, Wojciech
• Format: Journal Article
• Language: English
• Published: Oxford Blackwell Publishing Ltd 01.10.2016
• Subjects: Aggregates; Analysis; Categories and Subject Descriptors (according to ACM CCS); Computer science; Decoupling; I.3.3 [Computer Graphics]: Picture/Image Generation-Line and curve generation; Image processing systems; Importance sampling; Light; Light (illumination); Operators; Scattering; Stores; Studies; Transport

Aggregate scattering operators (ASOs) describe the overall scattering behavior of an asset (i.e., an object or volume, or collection thereof) accounting for all orders of its internal scattering. We propose a practical way to precompute and compactly store ASOs and demonstrate their ability to accel...