Struct used to describe meshes to be combined using Mesh.CombineMeshes.
| lightmapScaleOffset | The baked lightmap UV scale and offset applied to the Mesh. |
| mesh | Mesh to combine. |
| realtimeLightmapScaleOffset | The real-time lightmap UV scale and offset applied to the Mesh. |
| subMeshIndex | Sub-Mesh index of the Mesh. |
| transform | Matrix to transform the Mesh with before combining. |