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 |
|---|---|---|---|
| 4644 | 2018-03-12 18:19:47 | 60.06 | 96% |
| 3438 | 2017-01-30 22:41:02 | 51.44 | 91% |