The observed brightness of a Lambertian surface may be written as the product of an albedo factor, p, and the cosine of the incident angle, cos i. This means that brightness can be written as a product of a term that depends on the material, p, and a term that depends on surface direction, which in turn depends on f and g.
Game | Time | WPM | Accuracy |
---|---|---|---|
4402 | 2017-02-14 04:57:23 | 57.80 | 86% |