A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
Efficient isotropic BRDF measurement
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
3D Texture Recognition Using Bidirectional Feature Histograms
International Journal of Computer Vision
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
Estimating specular roughness and anisotropy from second order spherical gradient illumination
EGSR'09 Proceedings of the Twentieth Eurographics conference on Rendering
Efficient basis decomposition for scattered reflectance data
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Acquiring reflectance and shape from continuous spherical harmonic illumination
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
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The development of Bidirectional Texture Functions (BTFs) has made it possible for a wide range of different materials to acquire their characteristic appearance from a real-world counterpart and reproduce it faithfully in a high-quality rendering, that is hard to distinguish from an actual photograph. However, they have not yet found wide-spread use in practical applications. In this paper, we discuss, from our point of view, the main reasons for this and which unanswered questions and challenges for future research in this area remain. We focus on three different aspects: How can BTFs be measured and represented more efficiently? How can they be edited intuitively? And finally, can we find a perceptual difference metric between materials?