| # | Line 4598 | Line 4598 | familiar Gaussian model of MGF. | |
|---|---|---|
| 4598 | The hardest part is translating the specular power to a roughness value. | |
| 4599 | For this, we recommend the following approximation: | |
| 4600 | .IP | |
| 4601 | < | roughness = 0.6/sqrt(specular_power) |
| 4601 | > | roughness = sqrt(2/specular_power) |
| 4602 | .LP | |
| 4603 | It is not a perfect correlation, but it is about as close as one can get. | |
| 4604 | .NH 3 | |
| – | Removed lines |
| + | Added lines |
| < | Changed lines |
| > | Changed lines |