Reflectance and texture of real-world surfaces
ACM Transactions on Graphics (TOG)
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Decoupling BRDFs from surface mesostructures
GI '04 Proceedings of the 2004 Graphics Interface Conference
CIT '04 Proceedings of the The Fourth International Conference on Computer and Information Technology
InscriptiFact: A virtual archive of ancient inscriptions from the Near East
International Journal on Digital Libraries - Special section on Digital Museum
A median cut algorithm for light probe sampling
SIGGRAPH '05 ACM SIGGRAPH 2005 Posters
Realistic materials in computer graphics
SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Precomputed radiance transfer for X3D based mixed reality applications
Web3D '08 Proceedings of the 13th international symposium on 3D web technology
X3DOM: a DOM-based HTML5/X3D integration model
Proceedings of the 14th International Conference on 3D Web Technology
Bidirectional Texture Function Modeling: A State of the Art Survey
IEEE Transactions on Pattern Analysis and Machine Intelligence
A modern declarative surface shader for X3D
Proceedings of the 15th International Conference on Web 3D Technology
SpiderGL: a JavaScript 3D graphics library for next-generation WWW
Proceedings of the 15th International Conference on Web 3D Technology
Real-time shading with filtered importance sampling
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Integrated high-quality acquisition of geometry and appearance for cultural heritage
VAST'11 Proceedings of the 12th International conference on Virtual Reality, Archaeology and Cultural Heritage
WebGL-based streaming and presentation framework for bidirectional texture functions
VAST'11 Proceedings of the 12th International conference on Virtual Reality, Archaeology and Cultural Heritage
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Complex material-light interaction is modeled mathematically in its most basic form through the 4D BRDF or the 6D spatially varying BRDF. To alleviate the overhead of calculating correct shading with a complex BRDF consisting of many parameters, many methods resort to textures as containers for BRDF information. The most common among them is the Bidirectional Texture Function, where a set of base textures of the material under different illumination and viewing conditions is stored and used as a lookup table at runtime. A wide variety of compression algorithms have been proposed, which usually differ only in some basis notation. Also, several other schemes aside from the BTF exist that make use of multiple textures as containers for surface appearance data, which either compress the surface transfer function or the response in change of luminance with a suitable basis function. We propose a common container for image-based material descriptors, the ImageMaterial node for X3D, with a common interface to unify these different implementations and make them accessible to the X3D developer. We also introduce a new texturing node, the PolynomialTextureMap, which can display Polynomial Texture Map binary container as regular static texture or work in conjunction with an ImageMaterial appearance to unfold its full potential.