Karl vom Berge

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We propose a new technique for efficiently rendering bidirectional texture functions (BTFs). A 6D BTF describes the appearance of a material as a texture that depends on the lighting and viewing directions. As such, a BTF accommodates self-shadowing, interreflection, and masking effects of a complex material without needing an explicit representation of the(More)
Many translucent materials exhibit heterogeneous subsurface scattering, which arises from complex internal structures. The acquisition and representation of these scattering functions is a complex problem that has been only partially addressed in previous techniques. Unlike homogeneous materials, the spatial component of heterogeneous subsurface scattering(More)
This research focused on bidirectional reflectance distribution function (BRDF) measurements of Fagus sylvatica leaves, using a state of the art new multispectral Compact Laboratory Spectro-Gonioreflectometer (CLabSpeG). The BRDF was based on 4356 reflectance measurements covering the electromagnetic spectrum from 350 nm to 2500 nm. These measurements were(More)
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