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Wavelength dependent reflectance functions

Published: 24 July 1994 Publication History

Abstract

A wavelength based bidirectional reflectance function is developed for use in realistic image synthesis. A geodesic sphere is employed to represent the BRDF, and a novel data structure is used to store this description and to recall it for rendering purposes. A virtual goniospectrophotometer is implemented by using a Monte Carlo ray tracer to cast rays into a surface. An optics model that incorporates phase is used in the ray tracer to simulate interference effects. An adaptive subdivision technique is applied to elaborate the data structure from rays scattered into the hemisphere above the surface. The wavelength based BRDF and virtual goniospectrophotometer are utilized to analyze and make pictures of thin films, idealized pigmented materials, and pearlescent paints.

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References

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cover image ACM Conferences
SIGGRAPH '94: Proceedings of the 21st annual conference on Computer graphics and interactive techniques
July 1994
512 pages
ISBN:0897916670
DOI:10.1145/192161
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 24 July 1994

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Author Tags

  1. BRDF
  2. Monte Carlo
  3. full spectral rendering

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SIGGRAPH '94 Paper Acceptance Rate 57 of 242 submissions, 24%;
Overall Acceptance Rate 1,822 of 8,601 submissions, 21%

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  • (2024)Empirical BRDF Model for Goniochromatic Materials and Soft Proofing With Reflective InksIEEE Computer Graphics and Applications10.1109/MCG.2024.339137644:5(143-152)Online publication date: 1-Sep-2024
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