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 |
|---|---|---|---|
| 4987 | 2019-12-19 16:50:37 | 62.52 | 95% |
| 3938 | 2019-11-09 14:21:46 | 58.69 | 94% |