Level-of-Detail for Production-Scale Path Tracing

Beitrag bei einer Tagung

Details zur Publikation

Autor(en): Prus M, Eisenacher C, Stamminger M
Titel Sammelwerk: VMV 2015 - Vision, Modeling and Visualization
Verlag: Eurographics Association
Jahr der Veröffentlichung: 2015
Tagungsband: Vision, Modeling & Visualization
Seitenbereich: 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-Autoren / FAU-Herausgeber

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


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.


Zuletzt aktualisiert 2018-06-08 um 23:50