A radiosity method for non-diffuse environments
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Bidirectional reflection functions from surface bump maps
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
A global illumination solution for general reflectance distributions
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Ten lectures on wavelets
Predicting reflectance functions from complex surfaces
SIGGRAPH '92 Proceedings of the 19th 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
Reflection from layered surfaces due to subsurface scattering
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
Wavelength dependent reflectance functions
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Spherical wavelets: efficiently representing functions on the sphere
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Light-driven global illumination with a wavelet representation of light transport
Proceedings of the eurographics workshop on Rendering techniques '96
The art of computer programming, volume 3: (2nd ed.) sorting and searching
The art of computer programming, volume 3: (2nd ed.) sorting and searching
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
A Reflectance Model for Computer Graphics
ACM Transactions on Graphics (TOG)
An improved illumination model for shaded display
Communications of the ACM
Illumination for computer generated pictures
Communications of the ACM
A ray tracing solution for diffuse interreflection
SIGGRAPH '88 Proceedings of the 15th 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
Wavelets for Computer Graphics: A Primer, Part 1
IEEE Computer Graphics and Applications
Filtered Local Shading in the Wavelet Domain
Proceedings of the Eurographics Workshop on Rendering Techniques '97
Efficient rendering of spatial bi-directional reflectance distribution functions
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
Efficient isotropic BRDF measurement
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
Real-time BRDF editing in complex lighting
ACM SIGGRAPH 2006 Papers
Surface modeling and parameterization with manifolds
SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Wavelet encoding of BRDFs for real-time rendering
GI '07 Proceedings of Graphics Interface 2007
Frequency domain normal map filtering
ACM SIGGRAPH 2007 papers
Gloss and Normal Map Acquisition of Mesostructures Using Gray Codes
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part II
A novel progressive refinement algorithm for full spectral rendering
Real-Time Imaging
A Basis Illumination Approach to BRDF Measurement
International Journal of Computer Vision
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Analytical models of light reflection are in common use in computer graphics. However, models based on measured reflectance data promise increased realism by making it possible to simulate many more types of surfaces to a greater level of accuracy than with analytical models. They also require less expert knowledge about the illumination models and their parameters. There are a number of hurdles to using measured reflectance functions, however. The data sets are very large. A reflectance distribution function sampled at five degrees angular resolution, arguably sparse enough to miss highlights and other high frequency effects, can easily require over a million samples, which in turn amount to over four megabytes of data. These data then also require some form of interpolation and filtering to be used effectively.In this paper, we examine issues of representation of measured reflectance distribution functions. In particular, we examine a wavelet basis representation of reflectance functions, and the algorithms required for efficient point-wise reconstruction of the BRDF. We show that the nonstandard wavelet decomposition leads to considerably more efficient algorithms than the standard wavelet decomposition. We also show that thresholding allows considerable improvement in running times, without unduly sacrificing image quality.