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 |
|---|---|---|---|
| 2529 | 2018-01-07 16:24:20 | 73.72 | 98% |
| 341 | 2017-11-12 19:24:06 | 66.61 | 97% |