public static FbxAsset Import(string path)
{
if (!File.Exists(path))
{
throw new FileNotFoundException("The file could not be found", path);
}
var document = FbxIO.ReadBinary("E:\\projects\\NEngineResources\\Glock.fbx");
var verticesNode = document.GetRelative("Objects/Geometry/Vertices");
var fbxAsset = new FbxAsset();
fbxAsset.Mesh = new Mesh();
if (verticesNode.Properties[0] is double[] vertices)
{
fbxAsset.Mesh.Vertices = new Vector3[vertices.Length / 3];
for (int i = 0, j = 0, len = vertices.Length; i < len; i += 3, j++)
{
var xPos = vertices[i];
var yPos = vertices[i + 1];
var zPos = vertices[i + 2];
fbxAsset.Mesh.Vertices[j] = new Vector3(xPos, yPos, zPos);
}
}
var polygonVertexIndexNode = document.GetRelative("Objects/Geometry/PolygonVertexIndex");
if (polygonVertexIndexNode.Properties[0] is int[] polygonVertexIndex && polygonVertexIndex.Length >= 2)
{
bool quadMode = polygonVertexIndex[2] >= 0;
if (quadMode)
{
fbxAsset.Mesh.Triangles = new Triangle[(polygonVertexIndex.Length / 4) * 2];
for (int i = 0, j = 0, len = polygonVertexIndex.Length; i < len; i += 4, j += 2)
{
var v1 = polygonVertexIndex[i];
var v2 = polygonVertexIndex[i + 1];
var v3 = polygonVertexIndex[i + 2];
var v4 = -polygonVertexIndex[i + 3] - 1;
fbxAsset.Mesh.Triangles[j] = new Triangle(v1, v2, v4);
fbxAsset.Mesh.Triangles[j + 1] = new Triangle(v4, v2, v3);
}
}
else
{
fbxAsset.Mesh.Triangles = new Triangle[polygonVertexIndex.Length / 3];
for (int i = 0, j = 0, len = polygonVertexIndex.Length; i < len; i += 3, j++)
{
var v1 = polygonVertexIndex[i];
var v2 = polygonVertexIndex[i + 1];
var v3 = -polygonVertexIndex[i + 2] - 1;
fbxAsset.Mesh.Triangles[j] = new Triangle(v1, v2, v3);
}
}
}
return(fbxAsset);
}
public void Load(string path)
{
var rootNode = new View.FbxNodeItem(System.IO.Path.GetFileName(path));
var content = FbxIO.ReadBinary(path);
foreach (var item in content.Nodes.Where(n => n != null))
{
SeekNode(rootNode, item);
}
nodeModel.Nodes.Add(rootNode);
}
static void Test1()
{
string dir = @"C:\Users\dell\AppData\Local\Colossal Order\Cities_Skylines\Addons\Import\ARDumps\";
string file1 = "RoadMediumNode._ascii.fbx";
var doc = FbxIO.ReadAscii(dir + file1);
string fileA = "testA_" + file1;
FbxIO.WriteAscii(doc, dir + fileA);
doc = FbxIO.ReadAscii(dir + fileA);
string fileB = "testB_" + file1;
FbxIO.WriteBinary(doc, dir + fileB); // i can't open this
doc = FbxIO.ReadBinary(dir + fileB);
FbxIO.WriteAscii(doc, dir + "testC_" + file1); // i can open this
}
static void Test4()
{
Test3();
string dir = @"C:\Users\dell\AppData\Local\Colossal Order\Cities_Skylines\Addons\Import\ARDumps\";
string file1 = "RoadMediumNode._ascii.fbx"; // can open this
string file2 = "TEST3_RoadMediumNode.binary.fbx"; // can open this
string file3 = "TEST3_RoadMediumNode.ascii.fbx";
string fileB = "TEST3B_RoadMediumNode.binary.fbx";
Console.WriteLine("reading binary ...");
var doc1 = FbxIO.ReadBinary(dir + file2);
FbxIO.WriteAscii(doc1, dir + file3);
var doc2 = FbxIO.ReadAscii(dir + file3);
doc1.Diff(doc2);
FbxIO.WriteBinary(doc2, dir + fileB);
}