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 |
|---|---|---|---|
| 4030 | 2017-09-23 06:15:33 | 82.00 | 98% |
| 3856 | 2017-07-21 03:42:33 | 82.94 | 98% |