Time-Varying BRDFs (Englisch)

Wie erhalte ich diesen Titel?

Download
Kommerziell Vergütung an den Verlag: 14,50 € Grundgebühr: 4,00 € Gesamtpreis: 18,50 €
Akademisch Vergütung an den Verlag: 4,50 € Grundgebühr: 2,00 € Gesamtpreis: 6,50 €

The properties of virtually all real-world materials change with time, causing their BRDFs to be time-varying. However, none of the existing BRDF models and databases take time variation into consideration; they represent the appearance of a material at a single time instance. In this work, we address the acquisition, analysis, modeling and rendering of a wide range of time-varying BRDFs. We have developed an acquisition system that is capable of sampling a material's BRDF at multiple time instances, with each time sample acquired within 36 seconds. We have used this acquisition system to measure the BRDFs of a wide range of time-varying phenomena which include the drying of various types of paints (watercolor, spray, and oil), the drying of wet rough surfaces (cement, plaster, and fabrics), the accumulation of dusts (household and joint compound) on surfaces, and the melting of materials (chocolate). Analytic BRDF functions are fit to these measurements and the model parameters' variations with time are analyzed. Each category exhibits interesting and sometimes non-intuitive parameter trends. These parameter trends are then used to develop analytic time-varying BRDF (TVBRDF) models. The analytic TVBRDF models enable us to apply effects such as paint drying and dust accumulation to arbitrary surfaces and novel materials.

Inhaltsverzeichnis Konferenzband

Die Inhaltsverzeichnisse werden automatisch erzeugt und basieren auf den im Index des TIB-Portals verfügbaren Einzelnachweisen der enthaltenen Beiträge. Die Anzeige der Inhaltsverzeichnisse kann daher unvollständig oder lückenhaft sein.

7
A Generalized Cracks Simulation on 3D-Meshes
Valette, Gilles / Prévost, Stéphanie / Lucas, Laurent | 2006
15
Time-Varying BRDFs
Sun, Bo / Sunkavalli, Kalyan / Ramamoorthi, Ravi / Belhumeur, Peter / Nayar, Shree | 2006
25
Realistic Water Volumes in Real-Time
Baboud, Lionel / Décoret, Xavier | 2006
33
Simulating Caustics due to Liquid-Solid Interface Menisci
Bourque, Eric / Dufort, Jean-François / Laprade, Michelle / Poulin, Pierre | 2006
41
Real-time Realistic Illumination and Shading of Stratiform Clouds
Bouthors, Antoine / Neyret, Fabrice / Lefebvre, Sylvain | 2006
51
Physically-Based Realistic Fire Rendering
Pegoraro, Vincent / Parker, Steven G. | 2006
61
Artist-Directable Real-Time Rain Rendering in City Environments
Tatarchuk, Natalya / Isidoro, John | 2006
75
Physically-based Driven Tree Animations
Haevre, William Van / Fiore, Fabian Di / Reeth, Frank Van | 2006
83
Effective Multi-resolution Rendering and Texture Compression for Captured Volumetric Trees
Linz, Christian / Reche-Martinez, Alex / Drettakis, George / Magnor, Marcus | 2006
Feedback