Title: Practical construction of reflectances for spectral rendering
Authors: Wang, Qiqi
Xu, Haiying
Sun, Yinlong
Citation: WSCG '2004: Posters: The 12-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, 2.-6. February 2004, Plzen, p. 193-196.
Issue Date: 2004
Publisher: UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/wscg2004/Papers_2004_Poster/Q97.pdf
ISBN: 80-903100-6-0
Keywords: spektrální vykreslování;činitele odrazu
Keywords in different language: spectral rendering;reflectances
Abstract: We propose a method to construct practical reflectances for spectral rendering. A set of 1400 real reflectances are measured and more spectra with higher saturated colors are generated using Bouguer’s law. These spectra serve as the basis for constructing the spectra for any colors. Given a color triplet P, in the color space, we find a small local tetrahedron that contains P and the reflectances at the vertices are known. Thus the spectrum at P is constructed using trilinear interpolation. Our derived spectra correspond closely to real spectra and the transformation works for a large volume of color space. This method of spectral construction has been applied to texture mapping and simulation of wavelength-dependent phenomena in spectral rendering.
Rights: © UNION Agency
Appears in Collections:WSCG '2004: Posters

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