private void ReadVertices(BinaryReader reader)
{
var curPos = reader.BaseStream.Position;
reader.BaseStream.Seek((long)DataOffset, SeekOrigin.Begin);
//var data = reader.ReadBytes((int) vbHeader.SizeBytes);
for (ulong i = 0; i < NumVertices; i++)
{
var vertex = new PosNormalTexTan();
foreach (var element in Decl)
{
switch (element.Type)
{
case DeclarationType.Float3:
var v3 = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
switch (element.Usage)
{
case DeclarationUsage.Position:
vertex.Pos = v3;
break;
case DeclarationUsage.Normal:
vertex.Normal = v3;
break;
case DeclarationUsage.Tangent:
vertex.Tan = v3;
break;
}
//Console.WriteLine("{0} - {1}", element.Usage, v3);
break;
case DeclarationType.Float2:
var v2 = new Vector2(reader.ReadSingle(), reader.ReadSingle());
switch (element.Usage)
{
case DeclarationUsage.TextureCoordinate:
vertex.Tex = v2;
break;
}
//Console.WriteLine("{0} - {1}", element.Usage, v2);
break;
}
}
Vertices.Add(vertex);
}
reader.BaseStream.Position = curPos;
}
public SdkMeshVertexBufferHeader(BinaryReader reader)
{
NumVertices = reader.ReadUInt64();
SizeBytes = reader.ReadUInt64();
StrideBytes = reader.ReadUInt64();
Decl = new List <VertexElement>();
var processElem = true;
for (int j = 0; j < MaxVertexElements; j++)
{
var stream = reader.ReadUInt16();
var offset = reader.ReadUInt16();
var type = reader.ReadByte();
var method = reader.ReadByte();
var usage = reader.ReadByte();
var usageIndex = reader.ReadByte();
if (stream < 8 && processElem)
{
var element = new VertexElement((short)stream, (short)offset, (DeclarationType)type, (DeclarationMethod)method, (DeclarationUsage)usage, usageIndex);
Decl.Add(element);
}
else
{
processElem = false;
}
}
DataOffset = reader.ReadUInt64();
Vertices = new List <PosNormalTexTan>();
if (SizeBytes > 0)
{
var curPos = reader.BaseStream.Position;
reader.BaseStream.Seek((long)DataOffset, SeekOrigin.Begin);
//var data = reader.ReadBytes((int) vbHeader.SizeBytes);
for (ulong i = 0; i < NumVertices; i++)
{
var vertex = new PosNormalTexTan();
foreach (var element in Decl)
{
switch (element.Type)
{
case DeclarationType.Float3:
var v3 = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
switch (element.Usage)
{
case DeclarationUsage.Position:
vertex.Pos = v3;
break;
case DeclarationUsage.Normal:
vertex.Normal = v3;
break;
case DeclarationUsage.Tangent:
vertex.Tan = v3;
break;
}
//Console.WriteLine("{0} - {1}", element.Usage, v3);
break;
case DeclarationType.Float2:
var v2 = new Vector2(reader.ReadSingle(), reader.ReadSingle());
switch (element.Usage)
{
case DeclarationUsage.TextureCoordinate:
vertex.Tex = v2;
break;
}
//Console.WriteLine("{0} - {1}", element.Usage, v2);
break;
}
}
Vertices.Add(vertex);
}
reader.BaseStream.Position = curPos;
}
}
private void ReadVertices(BinaryReader reader) {
var curPos = reader.BaseStream.Position;
reader.BaseStream.Seek((long)DataOffset, SeekOrigin.Begin);
//var data = reader.ReadBytes((int) vbHeader.SizeBytes);
for (ulong i = 0; i < NumVertices; i++) {
var vertex = new PosNormalTexTan();
foreach (var element in Decl) {
switch (element.Type) {
case DeclarationType.Float3:
var v3 = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
switch (element.Usage) {
case DeclarationUsage.Position:
vertex.Pos = v3;
break;
case DeclarationUsage.Normal:
vertex.Normal = v3;
break;
case DeclarationUsage.Tangent:
vertex.Tan = v3;
break;
}
//Console.WriteLine("{0} - {1}", element.Usage, v3);
break;
case DeclarationType.Float2:
var v2 = new Vector2(reader.ReadSingle(), reader.ReadSingle());
switch (element.Usage) {
case DeclarationUsage.TextureCoordinate:
vertex.Tex = v2;
break;
}
//Console.WriteLine("{0} - {1}", element.Usage, v2);
break;
}
}
Vertices.Add(vertex);
}
reader.BaseStream.Position = curPos;
}
public BasicModel(Device device, TextureManager texMgr, string filename, string texturePath)
{
_subsets = new List<MeshGeometry.Subset>();
_vertices = new List<PosNormalTexTan>();
_indices = new List<short>();
DiffuseMapSRV = new List<ShaderResourceView>();
NormalMapSRV = new List<ShaderResourceView>();
Materials = new List<Material>();
_modelMesh = new MeshGeometry();
var importer = new AssimpImporter();
if (!importer.IsImportFormatSupported(Path.GetExtension(filename))) {
throw new ArgumentException("Model format " + Path.GetExtension(filename) + " is not supported! Cannot load {1}", "filename");
}
#if DEBUG
importer.AttachLogStream(new ConsoleLogStream());
importer.VerboseLoggingEnabled = true;
#endif
var model = importer.ImportFile(filename, PostProcessSteps.GenerateSmoothNormals | PostProcessSteps.CalculateTangentSpace);
var min = new Vector3(float.MaxValue);
var max = new Vector3(float.MinValue);
var verts = new List<PosNormalTexTan>();
foreach (var mesh in model.Meshes) {
var subset = new MeshGeometry.Subset {
VertexCount = mesh.VertexCount,
VertexStart = _vertices.Count,
FaceStart = _indices.Count / 3,
FaceCount = mesh.FaceCount
};
_subsets.Add(subset);
// bounding box corners
for (var i = 0; i < mesh.VertexCount; i++) {
var pos = mesh.HasVertices ? mesh.Vertices[i].ToVector3() : new Vector3();
min = Vector3.Minimize(min, pos);
max = Vector3.Maximize(max, pos);
var norm = mesh.HasNormals ? mesh.Normals[i] : new Vector3D();
var texC = mesh.HasTextureCoords(0) ? mesh.GetTextureCoords(0)[i] : new Vector3D();
var tan = mesh.HasTangentBasis ? mesh.Tangents[i] : new Vector3D();
var v = new PosNormalTexTan(pos, norm.ToVector3(), texC.ToVector2(), tan.ToVector3());
verts.Add(v);
}
_vertices.AddRange(verts);
var indices = mesh.GetIndices().Select(i => (short)(i + (uint)subset.VertexStart)).ToList();
_indices.AddRange(indices);
var mat = model.Materials[mesh.MaterialIndex];
var material = mat.ToMaterial();
Materials.Add(material);
var diffusePath = mat.GetTexture(TextureType.Diffuse, 0).FilePath;
if (Path.GetExtension(diffusePath) == ".tga") {
// DirectX doesn't like to load tgas, so you will need to convert them to pngs yourself with an image editor
diffusePath = diffusePath.Replace(".tga", ".png");
}
if (!string.IsNullOrEmpty(diffusePath)) {
DiffuseMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, diffusePath)));
}
var normalPath = mat.GetTexture(TextureType.Normals, 0).FilePath;
if (!string.IsNullOrEmpty(normalPath)) {
NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, normalPath)));
} else {
var normalExt = Path.GetExtension(diffusePath);
normalPath = Path.GetFileNameWithoutExtension(diffusePath) + "_nmap" + normalExt;
NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, normalPath)));
}
}
BoundingBox = new BoundingBox(min, max);
_modelMesh.SetSubsetTable(_subsets);
_modelMesh.SetVertices(device, _vertices);
_modelMesh.SetIndices(device, _indices);
}
