Cornell Box Spray Paints
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Gonioreflectometer Data

The reflectance functions below have been measured at 1439 combinations of incoming and outgoing directions. The incidence angles are 10°, 20°, ..., 80°. The corresponding outgoing directions are uniformly distributed across the hemisphere. The measurements are presented at 31 wavelengths (400, 410, ..., 700nm). Each Matlab file contains the following data:
  • dir_in: the 1439 incoming direction vectors (with the z-axis of the coordinate system aligned along the normal).
  • dir_out: the 1439 outgoing direction vectors.
  • fr: the 1439 BRDF values at 31 wavelengths.
The data are also provided in ASTM format. In addition, the spectral data have been converted to tristimulus values in CIE XYZ space and for the RGB primaries of a Sony Trinitron monitor.

[Rendering] In MATLAB file
garnet_red.mat: Dupli-color #T-345, Garnet Red. The lacquer has been coated with a gloss-reducing finish Plasti-kote #33, Glass Frosting Spray.

In ASTM E1392-96 format
garnet_red.astm.gz: About 141K compressed, about 415K uncompressed
garnet_red_XYZ.astm.gz: XYZ tristimulus values. About 19K compressed. Also available uncompressed; about 94K.
garnet_red_RGB.astm.gz: RGB tristimulus values. About 19K compressed. Also available uncompressed; about 94K.

[Rendering] In MATLAB file
krylon_blue.mat: Krylon latex enamel #7205, True Blue. The enamel paint has been coated with a gloss-reducing finish Plasti-kote #33, Glass Frosting Spray.

In ASTM E1392-96 format
krylon_blue.astm.gz: About 141K compressed, about 415K uncompressed
krylon_blue_XYZ.astm.gz: XYZ tristimulus values. About 20K compressed. Also available uncompressed; about 95K.
krylon_blue_RGB.astm.gz: RGB tristimulus values. About 20K compressed. Also available uncompressed; about 94K.

Image-based Data

The image-based data are from the paper Image-based brdf measurement including human skin. Stephen R. Marschner, Stephen H. Westin, Eric P. F. Lafortune, Kenneth E. Torrance, and Donald P. Greenberg. Presented at Eurographics Workshop on Rendering, 1999.

Each of the data sets is provided as a gzipped tar archive, and includes raw BRDF samples, along with data on the spectral response of the camera used and spectral emission of the light source. A README file in each archive describes the file format used.

Krylon Gray Primer

gray-cylinder-990106.tar.gz contains an archive of data from 26 images of an aluminum cylinder painted with Krylon© #1318 Gray All-Purpose Primer. Since the sample was a cylinder, this dataset includes data only on and near the incidence plane. The archive is about 17MB compressed, and decompresses to about 22MB.

Coefficients are also available to render this surface with the Lafortune BRDF representation.
Separated into its own directory January 11, 2001
Updated Tuesday, January 2, 2001 with data in text format
Updated Friday, January 5, 2001 to correct truncated text files

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