Normal generation options for ModelImporter.
Normals can be calculated by Unity using several methods. They can be either unweighted or weighted by area, angle or both.
Additional resources: ModelImporter.normalImportMode.
| Unweighted_Legacy | The normals are unweighted. This option uses the legacy algorithm for handling hard edges. |
| Unweighted | The normals are not weighted. |
| AreaWeighted | The normals are weighted by the face area. |
| AngleWeighted | The normals are weighted by the vertex angle on each face. |
| AreaAndAngleWeighted | The normals are weighted by both the face area and the vertex angle on each face. |