public static SubMesh[] GenerateSubMeshes(IExportContainer container, Mesh instanceMesh, ref LOD origin)
{
int offset = 0;
SubMesh[] instances = new SubMesh[origin.MeshData.Length];
for (int i = 0; i < origin.MeshData.Length; i++)
{
MeshData meshData = origin.MeshData[i];
SubMesh instance = new SubMesh();
instance.FirstByte = offset;
#warning TODO: stripping
int indexCount = meshData.Faces.Length * 3;
instance.IndexCount = indexCount;
instance.Topology = MeshTopology.Triangles;
if (SubMesh.HasTriangleCount(container.ExportVersion))
{
instance.TriangleCount = meshData.Faces.Length;
}
if (SubMesh.HasVertex(container.ExportVersion))
{
SubMeshConverter.CalculateSubMeshVertexRangeAndBounds(container.ExportVersion, instanceMesh, ref instance);
}
instances[i] = instance;
offset += indexCount * sizeof(ushort);
}
return(instances);
}
private static void SetVertex(IExportContainer container, Mesh instanceMesh, ref SubMesh origin, ref SubMesh instance)
{
if (SubMesh.HasVertex(container.Version))
{
instance.FirstVertex = origin.FirstVertex;
instance.VertexCount = origin.VertexCount;
instance.LocalAABB = origin.LocalAABB;
}
else
{
CalculateSubMeshVertexRangeAndBounds(container.ExportLayout, instanceMesh, ref instance);
}
}
private static SubMesh Convert(IExportContainer container, Mesh instanceMesh, ref SubMesh origin)
{
SubMesh instance = new SubMesh();
instance.FirstByte = origin.FirstByte;
instance.IndexCount = origin.IndexCount;
instance.Topology = origin.GetTopology(container.Version);
if (SubMesh.HasTriangleCount(container.ExportVersion))
{
instance.TriangleCount = origin.TriangleCount;
}
if (SubMesh.HasBaseVertex(container.ExportVersion))
{
instance.BaseVertex = GetBaseVertex(container, ref origin);
}
if (SubMesh.HasVertex(container.ExportVersion))
{
SetVertex(container, instanceMesh, ref origin, ref instance);
}
return(instance);
}
