The type of generated image in a ProceduralMaterial.
| Unknown | Undefined type. |
| Diffuse | Diffuse map. |
| Normal | Normal (Bump) map. |
| Height | Height map. |
| Emissive | Emissive map. |
| Specular | Specular map. |
| Opacity | Opacity (Tranparency) map. |
| Smoothness | Smoothness map (formerly referred to as Glossiness). |
| AmbientOcclusion | Ambient occlusion map. |
| DetailMask | Detail mask map. |
| Metallic | Metalness map. |
| Roughness | Roughness map. |