| Curl | The amount of curl. |
| Curl Random | Used to randomize the curl on a per fibre basis. |
| Phase Random | Randomize the phase of the curl. |
| Root/Tip Curl | Control the amount of curl at the base/tip of the fibre. |
| Length | Controls the length of the actual curl, this can also be thought of as the phase of the curl. |
| Length Random | Randomize the length of the curl. |
| U/V Scale | The scale of the curl perpendicular to the fibre. |
| Maintain Length | If on, the curl will resample the fibre to ensure the length is maintained post evaluation but may shorten the appearance of the result. |
| Up Vector | The value for the up vector, by default this is the Y axis but can be a varying attribute to accommodate for issues where the surface normal is aligned with the Y axis. |