We have measured the BRDF of several automotive paints from samples generously provided by the Ford Motor Company. All these measurements were made with our gonioreflectometer and are available as MATLAB files and in ASTM format.

Note

The renderings on this page cannot be reproduced using the BRDF measurements alone. The data on this page do not include ideal specular (mirror-like) reflectance for two reasons:

• Measuring this reflectance relatively difficult with our instrument, and
• it can be modeled easily with a Fresnel term.

Each image here was made with a BRDF from the data file, with the addition of an ideal specular (mirror-like) term governed by the Fresnel reflectance using a refractive index n = 1.5. Most common dielectric materials, including the binder of these paints, have an index near 1.5.

In ASTM E1392-96 format
mystique.astm.gz: About 96K compressed, about 415K uncompressed
mystique_XYZ.astm.gz: XYZ tristimulus values. About 16K compressed. Also available uncompressed; about 94K.
mystique_RGB.astm.gz: RGB tristimulus values. About 16K compressed. Also available uncompressed; about 95K.

In MATLAB file
cayman.mat: Dupont Cayman lacquer, as used by the Ford Motor Company.

In ASTM E1392-96 format
cayman.astm.gz: About 99K compressed, about 415K uncompressed
cayman_XYZ.astm.gz: XYZ tristimulus values. About 18K compressed. Also available uncompressed; about 94K.
cayman_RGB.astm.gz: RGB tristimulus values. About 19K compressed. Also available uncompressed; about 95K.