The role of rendering in the competence project in measurement science for optical reflection and scattering

Harold B. Westlund, Gary W. Meyer, Fern Y. Hunt

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Computer rendering is used to simulate the appearance of lighted objects for applications in architectural design, for animation and simulation in the entertainment industry, and for display and design in the automobile industry. Rapid advances in computer graphics technology suggest that in the near future it will be possible to produce photorealistic images of coated surfaces from scattering data. This could enable the identification of important parameters in the coatings manufacturing process that lead to desirable appearance, and to the design of virtual surfaces by visualizing prospective coating formulations once their optical properties are known. Here we report the results of our work to produce visually and radiometrically accurate renderings of selected appearance attributes of sample coated surfaces. It required changes in the rendering programs, which in general are not designed to accept high quality optical and material measurements, and changes in the optical measurement protocols. An outcome of this research is that some current ASTM standards can be replaced or enhanced by computer based standards of appearance.

Original languageEnglish (US)
Pages (from-to)247-259
Number of pages13
JournalJournal of Research of the National Institute of Standards and Technology
Volume107
Issue number3
DOIs
StatePublished - 2002

Keywords

  • BRDF
  • Computer rendering
  • Gloss
  • Reflectance

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