VoxelBlockyModelMesh

public Mesh Mesh { get; set; }

Mesh that will be used for this model. Must not be empty (if you want an empty model, use VoxelBlockyModelEmpty). If it has more than 2 surfaces (2 materials) the next surfaces will be ignored. Surfaces must be made of triangles. Must be indexed (if you generate meshes with SurfaceTool, use SurfaceTool.Index). Should ideally contain geometry within a 0..1 area. Only triangles located on the sides of that cubic area will be considered for neighbor side culling (see also VoxelBlockyModelMesh.SideVertexTolerance).

public int MeshOrthoRotationIndex { get; set; }

Orthogonal rotation applied to the mesh when baking. Values are taken from the same convention as GridMap tiles. (GridMap provides a conversion method from Basis, unfortunately it is not a static method so it requires a GridMap instance to exist. A helper method could be added in the future if requested)

public bool SideCutoutEnabled { get; set; }

When a neighbor voxel partially covers a side of this voxel, the occluded geometry of the side will be cut away. This only works if the shape of both sides is a rectangle. Note, enabling this option can actually produce more triangles than when it is enabled.

public float SideVertexTolerance { get; set; }

Margin below which triangles located near one of the 6 sides of the voxel will be considered on that side. Sides get culled or not by comparing between triangles of neighbor sides.