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 |
|---|---|---|---|
| 7072 | 2020-09-20 13:36:36 | 62.69 | 96% |
| 3071 | 2020-07-04 18:48:13 | 67.84 | 97% |