Method for digitally rendering an object using measured BRDF data

A digital rendering method employs measured BRDF values for a modeled material by collecting BRDF measurements using a precision reflectometer. A laser light may be used as the source of the incident beam. Sparsely measured BRDF data is resampled to build a data table of BRDF values over a dense reg...

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Bibliographic Details
Main Author BORSHUKOV GEORGE
Format Patent
LanguageEnglish
Published 05.08.2004
Edition7
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SEALS
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Summary:A digital rendering method employs measured BRDF values for a modeled material by collecting BRDF measurements using a precision reflectometer. A laser light may be used as the source of the incident beam. Sparsely measured BRDF data is resampled to build a data table of BRDF values over a dense regular grid. The data table may be supplied as input to a ray-tracing shader, and the shader may calculate BRDF values for modeled light rays by interpolating between adjacent grid points for the data table.
Bibliography:Application Number: US20030715870