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 |
|---|---|---|---|
| 864 | 2018-11-17 00:24:47 | 84.42 | 98% |
| 38 | 2018-10-05 04:30:39 | 68.78 | 97% |