An Addendum to Rational Function Fitting
Résumé
In the paper Rational BRDF [PSCS∗12] Pacanowski et al. introduced a new algorithm to fit BRDF data. The fitting algorithm is an extension of the Rational Vertical Segment Interpolation method introduced by Salazar Celis et al. [SCV07]. In this document we clarify some technical and numerical aspects of the fitting procedure that need to be taken into account in order to get satisfactory fitting results.
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