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 |
|---|---|---|---|
| 4090 | 2020-04-09 13:41:59 | 94.40 | 99% |
| 3301 | 2020-01-14 17:40:12 | 83.17 | 97% |