public override void ExportMesh(MeshData mesh, string exportPath, MeshExportParameters parameters)
{
Vector3[] vertices = mesh.Vertices;
Vector3[] normals = mesh.Normals;
int[] triangles = mesh.Triangles;
Vector2[][] uvs = mesh.UV;
FbxExporterInterop.Initialize(mesh.Name + "Scene");
FbxExporterInterop.SetFBXCompatibility(4);
FbxExporterInterop.BeginMesh(mesh.Name);
FbxVector3[] nvertices = new FbxVector3[vertices.Length];
FbxVector3[] nnormals = new FbxVector3[vertices.Length];
if (parameters.Mirror)
{
for (int i = 0; i < vertices.Length; i++)
{
Vector3 v = vertices[i];
vertices[i] = new Vector3(-v.x, v.y, v.z);
}
for (int i = 0; i < normals.Length; i++)
{
Vector3 v = normals[i];
normals[i] = new Vector3(-v.x, v.y, v.z);
}
// change triangles order
for (int i = 0; i < triangles.Length - 2; i += 3)
{
int i0 = triangles[i];
int i1 = triangles[i + 1];
int i2 = triangles[i + 2];
triangles[i] = i2;
triangles[i + 1] = i1;
triangles[i + 2] = i0;
}
}
for (int i = 0; i < vertices.Length; i++)
{
Vector3 v = vertices[i];
nvertices[i] = new FbxVector3(v.x, v.y, v.z);
}
for (int i = 0; i < normals.Length; i++)
{
Vector3 v = normals[i];
nnormals[i] = new FbxVector3(v.x, v.y, v.z);
}
FbxExporterInterop.EnableDefaultMaterial(mesh.Name + "Material");
FbxExporterInterop.AddVertices(nvertices, nvertices.Length);
FbxExporterInterop.AddNormals(nnormals, nnormals.Length);
for (int i = 0; i < uvs.Length; i++)
{
Vector2[] uv = uvs[i];
if (uv == null || uv.Length == 0)
{
continue;
}
FbxVector2[] fbxUv = new FbxVector2[uv.Length];
for (int j = 0; j < uv.Length; j++)
{
Vector2 v = uv[j];
fbxUv[j] = new FbxVector2(v.x, v.y);
}
FbxExporterInterop.AddTexCoords(fbxUv, fbxUv.Length, i, "UV" + i.ToString(CultureInfo.InvariantCulture));
}
FbxExporterInterop.AddIndices(triangles, triangles.Length, 0);
FbxExporterInterop.EndMesh();
string fullPath = Path.Combine(room.RootFolder, exportPath);
FbxExporterInterop.Export(fullPath);
}
public extern static void SetMaterial([MarshalAs(UnmanagedType.LPStr)] string materialName,
FbxVector3 emissive, FbxVector3 ambient, FbxVector3 diffuse, FbxVector3 specular,
FbxVector3 reflection, double shininess);
