Acquisition, Synthesis and Rendering of Bidirectional Texture Functions

In: Computer Graphics Forum (Mar. 2005), 24:1(83-109)
 

Abstract

One of the main challenges in computer graphics is still the realistic rendering of complex materials such as fabric or skin. The difficulty arises from the complex meso structure and reflectance behavior defining the unique look-and-feel of a material. A wide class of such realistic materials can be described as 2D-texture under varying light- and view direction namely the Bidirectional Texture Function (BTF). Since an easy and general method for modeling BTFs is not available, current research concentrates on image-based methods which rely on measured BTFs (acquired real-world data) in combination with appropriate synthesis methods. Recent results have shown that this approach greatly improves the visual quality of rendered surfaces and therefore the quality of applications such as virtual prototyping. This STAR will present in detail the state-of-the-art techniques for the main tasksinvolved in producing photo-realistic renderings using measured BTFs.

Keywords: color, digitizing and scanning, reflectance, shading, shadowing and texture

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Bibtex

@ARTICLE{mueller-2005-cgf,
        author = {M{\"u}ller, Gero and Meseth, Jan and Sattler, Mirko and Sarlette, Ralf and Klein, Reinhard},
         pages = {83--109},
         title = {Acquisition, Synthesis and Rendering of Bidirectional Texture Functions},
       journal = {Computer Graphics Forum},
        volume = {24},
        number = {1},
          year = {2005},
         month = mar,
  organization = {Eurographics Association},
      keywords = {color, digitizing and scanning, reflectance, shading, shadowing and texture},
      abstract = {One of the main challenges in computer graphics is still the realistic rendering of complex
                  materials such as fabric or skin. The difficulty arises from the complex meso structure and
                  reflectance behavior defining the unique look-and-feel of a material. A wide class of such realistic
                  materials can be described as 2D-texture under varying light- and view direction namely the
                  Bidirectional Texture Function (BTF). Since an easy and general method for modeling BTFs is not
                  available, current research concentrates on image-based methods which rely on measured
                  BTFs (acquired real-world data) in combination with appropriate synthesis methods. Recent results
                  have shown that this approach greatly improves the visual quality of rendered surfaces and therefore
                  the quality of applications such as virtual prototyping. This STAR will present in detail the
                  state-of-the-art techniques for the main tasksinvolved in producing photo-realistic renderings using
                  measured BTFs.}
}