A lighting model aiming at drive simulators
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Measuring and modeling anisotropic reflection
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Modeling pigmented materials for realistic image synthesis
ACM Transactions on Graphics (TOG)
Generalization of Lambert's reflectance model
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Modeling and rendering of metallic patinas
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Flow and changes in appearance
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Reflectance and texture of real-world surfaces
ACM Transactions on Graphics (TOG)
Modeling and rendering of weathered stone
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Real-time simulation of dust behavior generated by a fast traveling vehicle
ACM Transactions on Modeling and Computer Simulation (TOMACS)
Integrating Physics-Based Computing and Visualization: Modeling Dust Behavior
Computing in Science and Engineering
IEEE Computer Graphics and Applications
Light reflection functions for simulation of clouds and dusty surfaces
SIGGRAPH '82 Proceedings of the 9th annual conference on Computer graphics and interactive techniques
Determining wet surfaces from dry
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
Capture, analysis and synthesis of textured surfaces with variation in illumination, viewpoint, and time
Appearance manifolds for modeling time-variant appearance of materials
ACM SIGGRAPH 2006 Papers
Time-varying surface appearance: acquisition, modeling and rendering
ACM SIGGRAPH 2006 Papers
Synthesis of material drying history: phenomenon modeling, transferring and rendering
NPH'05 Proceedings of the First Eurographics conference on Natural Phenomena
NPH'06 Proceedings of the Second Eurographics conference on Natural Phenomena
Image-based BRDF measurement including human skin
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Frequency domain normal map filtering
ACM SIGGRAPH 2007 papers
Precomputation-Based Rendering
Foundations and Trends® in Computer Graphics and Vision
Advanced material appearance modeling
ACM SIGGRAPH 2009 Courses
International Journal of Computer Vision
Image-guided weathering: A new approach applied to flow phenomena
ACM Transactions on Graphics (TOG)
Interactive weathering of depth-inferred videos
Proceedings of the 10th International Conference on Virtual Reality Continuum and Its Applications in Industry
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The properties of virtually all real-world materials change with time, causing their bidirectional reflectance distribution functions (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 paper, we address the acquisition, analysis, modeling, and rendering of a wide range of time-varying BRDFs (TVBRDFs). 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 sec. 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 nonintuitive parameter trends. These parameter trends are then used to develop analytic TVBRDF models. The analytic TVBRDF models enable us to apply effects such as paint drying and dust accumulation to arbitrary surfaces and novel materials.