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 |
|---|---|---|---|
| 4862 | 2018-09-27 11:52:19 | 70.64 | 96% |
| 1765 | 2017-06-22 04:09:52 | 55.22 | 94% |