Measuring and modeling anisotropic reflection
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Generalization of Lambert's reflectance model
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Non-linear approximation of reflectance functions
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Reflectance and texture of real-world surfaces
ACM Transactions on Graphics (TOG)
A microfacet-based BRDF generator
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
A Reflectance Model for Computer Graphics
ACM Transactions on Graphics (TOG)
An anisotropic phong BRDF model
Journal of Graphics Tools
Illumination for computer generated pictures
Communications of the ACM
Homomorphic factorization of BRDFs for high-performance rendering
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Models of light reflection for computer synthesized pictures
SIGGRAPH '77 Proceedings of the 4th annual conference on Computer graphics and interactive techniques
Frequency space environment map rendering
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Efficient rendering of spatial bi-directional reflectance distribution functions
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
A Wavelet Representation of Reflectance Functions
IEEE Transactions on Visualization and Computer Graphics
All-frequency shadows using non-linear wavelet lighting approximation
ACM SIGGRAPH 2003 Papers
Clustered principal components for precomputed radiance transfer
ACM SIGGRAPH 2003 Papers
A geometry-based soft shadow volume algorithm using graphics hardware
ACM SIGGRAPH 2003 Papers
Structured importance sampling of environment maps
ACM SIGGRAPH 2003 Papers
A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
Triple product wavelet integrals for all-frequency relighting
ACM SIGGRAPH 2004 Papers
Efficient BRDF importance sampling using a factored representation
ACM SIGGRAPH 2004 Papers
Lpics: a hybrid hardware-accelerated relighting engine for computer cinematography
ACM SIGGRAPH 2005 Papers
Precomputed shadow fields for dynamic scenes
ACM SIGGRAPH 2005 Papers
Local, deformable precomputed radiance transfer
ACM SIGGRAPH 2005 Papers
Inverse shade trees for non-parametric material representation and editing
ACM SIGGRAPH 2006 Papers
All-frequency precomputed radiance transfer for glossy objects
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
All-frequency relighting of non-diffuse objects using separable BRDF approximation
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Spherical Q2-tree for sampling dynamic environment sequences
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
Experimental analysis of BRDF models
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
Interactive rendering with arbitrary BRDFs using separable approximations
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Matrix row-column sampling for the many-light problem
ACM SIGGRAPH 2007 papers
Interactive relighting with dynamic BRDFs
ACM SIGGRAPH 2007 papers
The influence of shape on the perception of material reflectance
ACM SIGGRAPH 2007 papers
A precomputed polynomial representation for interactive BRDF editing with global illumination
ACM Transactions on Graphics (TOG)
Shape-dependent gloss correction
Proceedings of the 5th symposium on Applied perception in graphics and visualization
Fast, realistic lighting and material design using nonlinear cut approximation
ACM SIGGRAPH Asia 2008 papers
Factoring of multiple function wavelet production sampling
WSEAS TRANSACTIONS on SYSTEMS
Toward a perceptual space for gloss
ACM Transactions on Graphics (TOG)
Precomputation-Based Rendering
Foundations and Trends® in Computer Graphics and Vision
All-frequency rendering of dynamic, spatially-varying reflectance
ACM SIGGRAPH Asia 2009 papers
Bimodal perception of audio-visual material properties for virtual environments
ACM Transactions on Applied Perception (TAP)
Toward evaluating material design interface paradigms for novice users
ACM SIGGRAPH 2010 papers
Physically-based interactive bi-scale material design
Proceedings of the 2011 SIGGRAPH Asia Conference
Interactive hair rendering and appearance editing under environment lighting
Proceedings of the 2011 SIGGRAPH Asia Conference
The State of the Art in Interactive Global Illumination
Computer Graphics Forum
Interactive bi-scale editing of highly glossy materials
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
Real-time shading with filtered importance sampling
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Optimizing environment maps for material depiction
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
Visibility editing for all-frequency shadow design
EGSR'10 Proceedings of the 21st Eurographics conference on Rendering
Interactive editing of lighting and materials using a bivariate BRDF representation
EGSR'10 Proceedings of the 21st Eurographics conference on Rendering
Precomputed radiance transfer for real-time indirect lighting using a spectral mesh basis
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Exploiting temporal coherence for incremental all-frequency relighting
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Sketch and paint-based interface for highlight modeling
SBM'08 Proceedings of the Fifth Eurographics conference on Sketch-Based Interfaces and Modeling
Interactive albedo editing in path-traced volumetric materials
ACM Transactions on Graphics (TOG)
OpenSurfaces: a richly annotated catalog of surface appearance
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Inverse bi-scale material design
ACM Transactions on Graphics (TOG)
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Current systems for editing BRDFs typically allow users to adjust analytic parameters while visualizing the results in a simplified setting (e.g. unshadowed point light). This paper describes a real-time rendering system that enables interactive edits of BRDFs, as rendered in their final placement on objects in a static scene, lit by direct, complex illumination. All-frequency effects (ranging from near-mirror reflections and hard shadows to diffuse shading and soft shadows) are rendered using a precomputation-based approach. Inspired by real-time relighting methods, we create a linear system that fixes lighting and view to allow real-time BRDF manipulation. In order to linearize the image's response to BRDF parameters, we develop an intermediate curve-based representation, which also reduces the rendering and precomputation operations to 1D while maintaining accuracy for a very general class of BRDFs. Our system can be used to edit complex analytic BRDFs (including anisotropic models), as well as measured reflectance data. We improve on the standard precomputed radiance transfer (PRT) rendering computation by introducing an incremental rendering algorithm that takes advantage of frame-to-frame coherence. We show that it is possible to render reference-quality images while only updating 10% of the data at each frame, sustaining frame-rates of 25-30fps.