private void CreateNormalBuffer(BrgMesh mesh, GltfFormatter formatter, Stream bufferStream)
{
long bufferViewOffset;
Vector3 max = new Vector3(float.MinValue);
Vector3 min = new Vector3(float.MaxValue);
using (BinaryWriter writer = new BinaryWriter(bufferStream, Encoding.UTF8, true))
{
// padding
writer.Write(new byte[(-bufferStream.Length) & (PaddingBytes(Accessor.ComponentTypeEnum.FLOAT) - 1)]);
bufferViewOffset = bufferStream.Length;
foreach (int index in Indices)
{
Vector3 vec = mesh.Normals[index];
vec = vec / vec.Length();
max.X = Math.Max(max.X, vec.X);
max.Y = Math.Max(max.Y, vec.Y);
max.Z = Math.Max(max.Z, vec.Z);
min.X = Math.Min(min.X, vec.X);
min.Y = Math.Min(min.Y, vec.Y);
min.Z = Math.Min(min.Z, vec.Z);
writer.Write(vec.X);
writer.Write(vec.Y);
writer.Write(vec.Z);
}
}
BufferView posBufferView = new BufferView();
posBufferView.Buffer = 0;
posBufferView.ByteLength = Indices.Count * 12;
posBufferView.ByteOffset = (int)bufferViewOffset;
posBufferView.ByteStride = 12;
posBufferView.Name = "normalBufferView";
posBufferView.Target = BufferView.TargetEnum.ARRAY_BUFFER;
Accessor posAccessor = new Accessor();
posAccessor.BufferView = formatter.bufferViews.Count;
posAccessor.ByteOffset = 0;
posAccessor.ComponentType = Accessor.ComponentTypeEnum.FLOAT;
posAccessor.Count = Indices.Count;
posAccessor.Max = new[] { max.X, max.Y, max.Z };
posAccessor.Min = new[] { min.X, min.Y, min.Z };
posAccessor.Name = "normalBufferViewAccessor";
posAccessor.Type = Accessor.TypeEnum.VEC3;
formatter.bufferViews.Add(posBufferView);
formatter.accessors.Add(posAccessor);
}
private void CreateIndexBuffer(BrgMesh mesh, GltfFormatter formatter, Stream bufferStream)
{
long bufferViewOffset;
short faceMin = short.MaxValue;
short faceMax = short.MinValue;
using (BinaryWriter writer = new BinaryWriter(bufferStream, Encoding.UTF8, true))
{
// padding
writer.Write(new byte[(-bufferStream.Length) & (PaddingBytes(Accessor.ComponentTypeEnum.UNSIGNED_SHORT) - 1)]);
bufferViewOffset = bufferStream.Length;
foreach (var face in Faces)
{
faceMin = Math.Min(faceMin, face.Indices[0]);
faceMin = Math.Min(faceMin, face.Indices[1]);
faceMin = Math.Min(faceMin, face.Indices[2]);
faceMax = Math.Max(faceMax, face.Indices[0]);
faceMax = Math.Max(faceMax, face.Indices[1]);
faceMax = Math.Max(faceMax, face.Indices[2]);
writer.Write(face.Indices[0]);
writer.Write(face.Indices[1]);
writer.Write(face.Indices[2]);
}
}
BufferView indexBufferView = new BufferView();
indexBufferView.Buffer = 0;
indexBufferView.ByteLength = Faces.Count * 6;
indexBufferView.ByteOffset = (int)bufferViewOffset;
indexBufferView.Name = "indexBufferView";
indexBufferView.Target = BufferView.TargetEnum.ELEMENT_ARRAY_BUFFER;
Accessor indexAccessor = new Accessor();
indexAccessor.BufferView = formatter.bufferViews.Count;
indexAccessor.ByteOffset = 0;
indexAccessor.ComponentType = Accessor.ComponentTypeEnum.UNSIGNED_SHORT;
indexAccessor.Count = Faces.Count * 3;
indexAccessor.Max = new[] { (float)faceMax };
indexAccessor.Min = new[] { (float)faceMin };
indexAccessor.Name = "indexBufferViewAccessor";
indexAccessor.Type = Accessor.TypeEnum.SCALAR;
formatter.bufferViews.Add(indexBufferView);
formatter.accessors.Add(indexAccessor);
}
public void Serialize(MeshPrimitive primitive, BrgMesh mesh, GltfFormatter formatter, Stream bufferStream)
{
if (!mesh.Header.Flags.HasFlag(BrgMeshFlag.SECONDARYMESH))
{
primitive.Mode = MeshPrimitive.ModeEnum.TRIANGLES;
CreateIndexBuffer(mesh, formatter, bufferStream);
primitive.Indices = formatter.accessors.Count - 1;
primitive.Attributes = CreateAttributes(mesh, formatter, bufferStream);
}
else
{
Targets.Add(CreateAttributes(mesh, formatter, bufferStream));
}
}
private Dictionary <string, int> CreateAttributes(BrgMesh mesh, GltfFormatter formatter, Stream bufferStream)
{
var attributes = new Dictionary <string, int>();
CreatePositionBuffer(mesh, formatter, bufferStream);
int posAccessor = formatter.accessors.Count - 1;
attributes.Add("POSITION", posAccessor);
CreateNormalBuffer(mesh, formatter, bufferStream);
int normAccessor = formatter.accessors.Count - 1;
attributes.Add("NORMAL", normAccessor);
return(attributes);
}
public MainWindow()
{
InitializeComponent();
string[] args = Environment.GetCommandLineArgs();
BrgFile file;
if (args.Length > 1 && false)
{
file = new BrgFile(File.Open(args[1], FileMode.Open, FileAccess.Read, FileShare.Read));
file.WriteJson(File.Open(args[1] + ".json", FileMode.Create, FileAccess.Write, FileShare.Read));
if (args.Length > 2 && args[2] == "-s")
{
Application.Current.Shutdown();
}
}
else
{
//archer e slinger_attacka.brg
file = new BrgFile(File.Open(@"C:\Games\Steam\steamapps\common\Age of Mythology\models\version2.0\infantry g hoplite head standard.brg", FileMode.Open, FileAccess.Read, FileShare.Write));
file.WriteJson(File.Open("infantry g hoplite head standard.brg.json.brg", FileMode.Create, FileAccess.Write, FileShare.Read));
var grnFile = new AoMEngineLibrary.Graphics.Grn.GrnFile();
grnFile.Read(File.Open(@"C:\Games\Steam\steamapps\common\Age of Mythology\models\version2.0\ajax.grn", FileMode.Open, FileAccess.Read, FileShare.Write));
}
//BrgFile t = new BrgFile();
//t.ReadJson(File.Open("hi.brg", FileMode.Open, FileAccess.Read, FileShare.Read));
//t.WriteJson(File.Open("hi2.brg", FileMode.Create, FileAccess.Write, FileShare.Read));
List <Point3D> positions = new List <Point3D>(file.Meshes[0].Vertices.Count);
List <int> triangleIndices = new List <int>(file.Meshes[0].Faces.Count * 3);
for (int i = 0; i < file.Meshes[0].Vertices.Count; ++i)
{
positions.Add(new Point3D(
file.Meshes[0].Vertices[i].X,
file.Meshes[0].Vertices[i].Y,
file.Meshes[0].Vertices[i].Z));
}
for (int i = 0; i < file.Meshes[0].Faces.Count; ++i)
{
triangleIndices.Add(file.Meshes[0].Faces[i].Indices[0]);
triangleIndices.Add(file.Meshes[0].Faces[i].Indices[1]);
triangleIndices.Add(file.Meshes[0].Faces[i].Indices[2]);
}
Mesh3D mesh = new Mesh3D(positions, triangleIndices);
MeshVisual3D meshVis = new MeshVisual3D();
meshVis.Mesh = mesh;
ModelVisual3D modVis = new ModelVisual3D();
GeometryModel3D geomod = new GeometryModel3D();
MeshGeometry3D meshgeo = new MeshGeometry3D();
//modVis.Transform = new MatrixTransform3D(new Matrix3D(-1, 0, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, 0, 1));
//modVis.Transform = new MatrixTransform3D(new Matrix3D(-0, -0, -1, 0, -1, -0, -0, 0, 0, 1, 0, 0, 0, 0, 0, 1));
modVis.Transform = new MatrixTransform3D(new Matrix3D(0, -1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1));
meshgeo.Positions = new Point3DCollection(positions);
meshgeo.TriangleIndices = new Int32Collection(triangleIndices);
geomod.Geometry = meshgeo;
modVis.Content = geomod;
MaterialGroup matGroup = new MaterialGroup();
matGroup.Children.Add(new DiffuseMaterial(new SolidColorBrush(Color.FromArgb(255, 0xFF, 0x00, 0xFF))));
geomod.Material = matGroup;
//viewport3d.Children.Add(meshVis);
viewport3d.Children.Add(modVis);
file = new BrgFile(File.Open(@"C:\Games\Steam\steamapps\common\Age of Mythology\models\version2.0\animal aurochs_attacka.brg", FileMode.Open, FileAccess.Read));
glTFLoader.Schema.Gltf gltf;
using (var stream = File.Open("dataBuffer.bin", FileMode.Create, FileAccess.Write, FileShare.Read))
{
GltfFormatter frmt = new GltfFormatter();
gltf = frmt.FromBrg(file, stream);
}
glTFLoader.Interface.SaveModel(gltf, "brgGltf.gltf");
}
