Level-of-Detail for Production-Scale Path Tracing

Conference contribution
(Original article)

Publication Details

Author(s): Prus M, Eisenacher C, Stamminger M
Title edited volumes: VMV 2015 - Vision, Modeling and Visualization
Publisher: Eurographics Association
Publication year: 2015
Conference Proceedings Title: Vision, Modeling & Visualization
Pages range: 73-78
ISBN: 9783905674958


Path-traced global illumination (GI) becomes increasingly important in movie production. With offscreen elements

considerably contributing to the path traced image, geometric complexity increases drastically, requiring

geometric instancing or a variety of manually created and baked LOD. To reduce artists’ work load and bridge

the gap between mesh-based LOD (Mip-maps) and voxel-based LOD (brickmaps), we propose to use an SVO

with averaged BRDF parameters, e.g. for the Disney-BRDF, and a normal distribution per voxel. During shading

we construct a BRDF from the averaged BRDF parameters and evaluate it with a random normal sampled from

the distribution. This is simple, memory-efficient, and handles a wide variety of geometry scales and materials

seamlessly, with proper filtering. Further it is efficient to construct, which allows quick artist iterations as well as

automatic and lazy generation on scene loading.

FAU Authors / FAU Editors

Stamminger, Marc Prof. Dr.
Lehrstuhl für Informatik 9 (Graphische Datenverarbeitung)

How to cite

Prus, M., Eisenacher, C., & Stamminger, M. (2015). Level-of-Detail for Production-Scale Path Tracing. In Vision, Modeling & Visualization (pp. 73-78). Aachen: Eurographics Association.

Prus, Magdalena, Christian Eisenacher, and Marc Stamminger. "Level-of-Detail for Production-Scale Path Tracing." Proceedings of the Vision, Modeling & Visualization, Aachen Eurographics Association, 2015. 73-78.


Last updated on 2019-22-07 at 07:33