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 |
|---|---|---|---|
| 4683 | 2019-09-06 03:25:13 | 79.92 | 97% |
| 3334 | 2019-05-11 23:24:30 | 72.13 | 96% |