Terrain Surface Material - [source code]

Select a terrain surface material from the list and override its properties. OutdoorPlus
| Name | Nickname | Description |
| Mat | | Select a material from the list. |
| Rho | | Material density (rho). Optional; default is 1980. |
| Cap | | Heat capacity (cap). Optional; default is 820. |
| Lam1 | | Primary thermal conductivity (lambda1). Optional; default is 1.35. |
| Lam2 | | Secondary thermal conductivity (lambda2). Optional; default is 0.0. |
Output
| Name | Nickname | Description |
| Mat | | Terrain surface material settings. |