public static LoadedModelResources LoadModel(Stream stream, bool leaveOpen = false)
{
var model = BinaryModelParser.IsBinaryModel(stream)
? BinaryModelParser.Parse(stream, leaveOpen)
: TextModelParser.ParseModel(stream, leaveOpen);
var vertices = new Vertex[model.Geosets.Length][];
var indices = new ushort[model.Geosets.Length][];
for (var geosetId = 0; geosetId < model.Geosets.Length; geosetId++)
{
var geoset = model.Geosets[geosetId];
var geosetVertices = new List <Vertex>();
var textureCoordinates = geoset.TextureCoordinateSets.Single().TextureCoordinates;
for (var i = 0; i < geoset.Vertices.Length; i++)
{
geosetVertices.Add(new Vertex
{
Position = geoset.Vertices[i],
// Normal = geoset.Normals[i],
UV = textureCoordinates[i],
VertexGroup = geoset.VertexGroups[i],
});
}
vertices[geosetId] = geosetVertices.ToArray();
// indices[geosetId] = geoset.Faces;
var indicesList = new List <ushort>();
if (geoset.FaceGroups.Length != geoset.FaceTypeGroups.Length)
{
throw new InvalidDataException();
}
var start = 0;
for (var i = 0; i < geoset.FaceGroups.Length; i++)
{
var count = (int)geoset.FaceGroups[i];
var end = start + count;
indicesList.AddRange(geoset.Faces[start..end].ToTrianglesIndices(geoset.FaceTypeGroups[i]));
public static LoadedModelResources LoadModel(Stream stream, bool leaveOpen = false)
{
Model model;
try
{
model = BinaryModelParser.Parse(stream, true);
if (!leaveOpen)
{
stream.Dispose();
}
}
catch
{
stream.Position = 0;
try
{
model = TextModelParser.ParseModel(stream, leaveOpen);
}
catch (Exception e)
{
throw new InvalidDataException($"Failed to load model: {e}");
}
}
var vertices = new Vertex[model.Geosets.Length][];
var indices = new ushort[model.Geosets.Length][];
for (var geosetId = 0; geosetId < model.Geosets.Length; geosetId++)
{
var geoset = model.Geosets[geosetId];
var geosetVertices = new List <Vertex>();
var textureCoordinates = geoset.TextureCoordinateSets.Single().TextureCoordinates;
for (var i = 0; i < geoset.Vertices.Length; i++)
{
geosetVertices.Add(new Vertex
{
Position = geoset.Vertices[i],
UV = textureCoordinates[i],
VertexGroup = geoset.VertexGroups[i],
});
}
vertices[geosetId] = geosetVertices.ToArray();
indices[geosetId] = geoset.Faces;
}
var boneMatrixGroups = new Dictionary <int, uint[][]>();
var geosetVertexGroups = new uint[model.Geosets.Length][][];
for (var geosetIndex = 0; geosetIndex < model.Geosets.Length; geosetIndex++)
{
var geoset = model.Geosets[geosetIndex];
var matrixGroupOffset = 0;
var vertexGroups = new uint[geoset.MatrixGroups.Length][];
for (var matrixGroupIndex = 0; matrixGroupIndex < geoset.MatrixGroups.Length; matrixGroupIndex++)
{
var matrixGroupSize = (int)geoset.MatrixGroups[matrixGroupIndex];
var matrixIndices = new uint[matrixGroupSize];
Buffer.BlockCopy(geoset.MatrixIndices, matrixGroupOffset, matrixIndices, 0, matrixGroupSize * sizeof(uint));
vertexGroups[matrixGroupIndex] = matrixIndices;
matrixGroupOffset += matrixGroupSize * sizeof(uint);
}
boneMatrixGroups.Add(geosetIndex, vertexGroups);
geosetVertexGroups[geosetIndex] = vertexGroups;
}
var highestObjectId = 0U;
var nodes = new Dictionary <uint, NodeData>();
foreach (var modelNode in model.GetNodes())
{
var node = new NodeData();
node.Name = modelNode.Name;
node.PivotPoint = model.PivotPoints[(int)modelNode.ObjectId];
node.ObjectId = modelNode.ObjectId;
node.ParentId = modelNode.ParentId;
node.Translations = modelNode.Translations;
node.Rotations = modelNode.Rotations;
node.Scalings = modelNode.Scalings;
nodes.Add(modelNode.ObjectId, node);
highestObjectId = highestObjectId < node.ObjectId ? node.ObjectId : highestObjectId;
}
if (highestObjectId != nodes.Count - 1)
{
throw new InvalidDataException();
}
foreach (var node in nodes.Values)
{
if (!node.ParentId.HasValue || node.ParentId.Value == uint.MaxValue)
{
continue;
}
var parent = nodes[node.ParentId.Value];
node.Parent = parent;
parent.Children.Add(node);
}
return(new LoadedModelResources
{
GeosetCount = vertices.Length,
IndexCounts = indices.Select(indices => (uint)indices.Length).ToArray(),
Vertices = vertices,
Indices = indices,
Textures = model.Textures.Select(texture => texture.FileName ?? string.Empty).ToArray(),
VertexGroups = geosetVertexGroups,
MaterialIds = model.Geosets.Select(geoset => geoset.MaterialId).ToArray(),
Nodes = nodes.Values.OrderBy(node => node.ObjectId).ToArray(),
Materials = model.Materials,
Sequences = model.Sequences,
});
}