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 |
|---|---|---|---|
| 73253 | 2017-02-05 01:18:58 | 118.71 | 100% |
| 73127 | 2017-01-29 04:17:29 | 105.50 | 97% |