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 |
|---|---|---|---|
| 2121 | 2017-10-06 03:33:44 | 108.57 | 99% |
| 753 | 2017-02-12 00:15:14 | 108.61 | 97% |