public static void ExportModelToDirectory(Model model, string directory, ExportOptions exportOptions)
{
switch (exportOptions.ExportFormatInfo.ExportFormat)
{
case ExportFormats.Obj:
exportModelAsOBJToDirectory(model, directory, exportOptions);
break;
//case ModelExportFormats.STL:
// exportModelAsSTLToDirectory(model, directory, formatOptions.Options);
// break;
}
}
private static void exportModelAsOBJToDirectory(Model model, string directory, ExportOptions options)
{
//TODO: Figure out what to do with non-version 4 models.
if (model != null && model.Version != 4)
{
return;
}
NumberFormatInfo format = new NumberFormatInfo();
format.NumberDecimalSeparator = ".";
if (options.Package)
{
try
{
DirectoryInfo directoryInfo = Directory.CreateDirectory(directory + @"\" + Path.GetFileNameWithoutExtension(model.Name));
directory = directoryInfo.FullName;
}
catch (Exception) { }
}
if (options.Textures)
{
ImageImporter imageImporter = new ImageImporter();
ImageExporter imageExporter = new ImageExporter();
foreach(String textureString in model.TextureStrings)
{
MemoryStream textureMemoryStream = AssetManager.Instance.CreateAssetMemoryStreamByName(textureString);
if(textureMemoryStream == null)
continue;
Image textureImage = imageImporter.LoadImageFromStream(textureMemoryStream);
if(textureImage == null)
continue;
imageExporter.SaveImage(textureImage, options.TextureFormat.ImageType, directory + @"\" + Path.GetFileNameWithoutExtension(textureString) + @"." + options.TextureFormat.Extension);
}
}
String path = directory + @"\" + Path.GetFileNameWithoutExtension(model.Name) + ".obj";
FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Write);
StreamWriter streamWriter = new StreamWriter(fileStream);
for (Int32 i = 0; i < model.Meshes.Length; ++i)
{
Mesh mesh = model.Meshes[i];
MaterialDefinition materialDefinition = MaterialDefinitionManager.Instance.MaterialDefinitions[model.Materials[(Int32)mesh.MaterialIndex].MaterialDefinitionHash];
VertexLayout vertexLayout = MaterialDefinitionManager.Instance.VertexLayouts[materialDefinition.DrawStyles[0].VertexLayoutNameHash];
//position
VertexLayout.Entry.DataTypes positionDataType;
Int32 positionOffset;
Int32 positionStreamIndex;
vertexLayout.GetEntryInfoFromDataUsageAndUsageIndex(VertexLayout.Entry.DataUsages.Position, 0, out positionDataType, out positionStreamIndex, out positionOffset);
Mesh.VertexStream positionStream = mesh.VertexStreams[positionStreamIndex];
for (Int32 j = 0; j < mesh.VertexCount; ++j)
{
Vector3 position = readVector3(options, positionOffset, positionStream, j);
position.X *= options.Scale.X;
position.Y *= options.Scale.Y;
position.Z *= options.Scale.Z;
streamWriter.WriteLine("v " + position.X.ToString(format) + " " + position.Y.ToString(format) + " " + position.Z.ToString(format));
}
//texture coordinates
if (options.TextureCoordinates)
{
VertexLayout.Entry.DataTypes texCoord0DataType;
Int32 texCoord0Offset = 0;
Int32 texCoord0StreamIndex = 0;
Boolean texCoord0Present = vertexLayout.GetEntryInfoFromDataUsageAndUsageIndex(VertexLayout.Entry.DataUsages.Texcoord, 0, out texCoord0DataType, out texCoord0StreamIndex, out texCoord0Offset);
if (texCoord0Present)
{
Mesh.VertexStream texCoord0Stream = mesh.VertexStreams[texCoord0StreamIndex];
for (Int32 j = 0; j < mesh.VertexCount; ++j)
{
Vector2 texCoord;
switch (texCoord0DataType)
{
case VertexLayout.Entry.DataTypes.Float2:
texCoord.X = BitConverter.ToSingle(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + 0);
texCoord.Y = 1.0f - BitConverter.ToSingle(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + 4);
break;
case VertexLayout.Entry.DataTypes.float16_2:
texCoord.X = Half.FromBytes(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + texCoord0Offset + 0).ToSingle();
texCoord.Y = 1.0f - Half.FromBytes(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + texCoord0Offset + 2).ToSingle();
break;
default:
texCoord.X = 0;
texCoord.Y = 0;
break;
}
streamWriter.WriteLine("vt " + texCoord.X.ToString(format) + " " + texCoord.Y.ToString(format));
}
}
}
}
//faces
UInt32 vertexCount = 0;
for (Int32 i = 0; i < model.Meshes.Length; ++i)
{
Mesh mesh = model.Meshes[i];
streamWriter.WriteLine("g Mesh" + i);
for (Int32 j = 0; j < mesh.IndexCount; j += 3)
{
UInt32 index0, index1, index2;
switch (mesh.IndexSize)
{
case 2:
index0 = vertexCount + BitConverter.ToUInt16(mesh.IndexData, (j * 2) + 0) + 1;
index1 = vertexCount + BitConverter.ToUInt16(mesh.IndexData, (j * 2) + 2) + 1;
index2 = vertexCount + BitConverter.ToUInt16(mesh.IndexData, (j * 2) + 4) + 1;
break;
case 4:
index0 = vertexCount + BitConverter.ToUInt32(mesh.IndexData, (j * 4) + 0) + 1;
index1 = vertexCount + BitConverter.ToUInt32(mesh.IndexData, (j * 4) + 4) + 1;
index2 = vertexCount + BitConverter.ToUInt32(mesh.IndexData, (j * 4) + 8) + 1;
break;
default:
index0 = 0;
index1 = 0;
index2 = 0;
break;
}
if (options.Normals && options.TextureCoordinates)
{
streamWriter.WriteLine("f " + index2 + "/" + index2 + "/" + index2 + " " + index1 + "/" + index1 + "/" + index1 + " " + index0 + "/" + index0 + "/" + index0);
}
else if (options.Normals)
{
streamWriter.WriteLine("f " + index2 + "//" + index2 + " " + index1 + "//" + index1 + " " + index0 + "//" + index0);
}
else if (options.TextureCoordinates)
{
streamWriter.WriteLine("f " + index2 + "/" + index2 + " " + index1 + "/" + index1 + " " + index0 + "/" + index0);
}
else
{
streamWriter.WriteLine("f " + index2 + " " + index1 + " " + index0);
}
}
vertexCount += (UInt32)mesh.VertexCount;
}
streamWriter.Close();
}
private static Vector3 readVector3(ExportOptions exportOptions, Int32 offset, Mesh.VertexStream vertexStream, Int32 index)
{
Vector3 vector3 = new Vector3();
switch (exportOptions.LeftAxis)
{
case Axes.X:
vector3.X = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 0);
break;
case Axes.Y:
vector3.Y = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 0);
break;
case Axes.Z:
vector3.Z = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 0);
break;
}
switch (exportOptions.UpAxis)
{
case Axes.X:
vector3.X = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 4);
break;
case Axes.Y:
vector3.Y = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 4);
break;
case Axes.Z:
vector3.Z = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 4);
break;
}
Axes forwardAxis = getForwardAxis(exportOptions.LeftAxis, exportOptions.UpAxis);
switch (forwardAxis)
{
case Axes.X:
vector3.X = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 8);
break;
case Axes.Y:
vector3.Y = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 8);
break;
case Axes.Z:
vector3.Z = BitConverter.ToSingle(vertexStream.Data, (vertexStream.BytesPerVertex * index) + offset + 8);
break;
}
return vector3;
}
private static void exportModelAsSTLToDirectory(Model model, string directory, ExportOptions options)
{
//NumberFormatInfo format = new NumberFormatInfo();
//format.NumberDecimalSeparator = ".";
//String path = directory + @"\" + Path.GetFileNameWithoutExtension(model.Name) + ".stl";
//FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Write);
//StreamWriter streamWriter = new StreamWriter(fileStream);
//for (Int32 i = 0; i < model.Meshes.Length; ++i)
//{
// Mesh mesh = model.Meshes[i];
// for (Int32 j = 0; j < mesh.Indices.Length; j += 3)
// {
// Vector3 normal = Vector3.Zero;
// normal += mesh.Vertices[mesh.Indices[j + 0]].Normal;
// normal += mesh.Vertices[mesh.Indices[j + 1]].Normal;
// normal += mesh.Vertices[mesh.Indices[j + 2]].Normal;
// normal.Normalize();
// streamWriter.WriteLine("facet normal " + normal.X.ToString("E", format) + " " + normal.Y.ToString("E", format) + " " + normal.Z.ToString("E", format));
// streamWriter.WriteLine("outer loop");
// for (Int32 k = 0; k < 3; ++k)
// {
// Vector3 vertex = mesh.Vertices[mesh.Indices[j + k]].Position;
// streamWriter.WriteLine("vertex " + vertex.X.ToString("E", format) + " " + vertex.Y.ToString("E", format) + " " + vertex.Z.ToString("E", format));
// }
// streamWriter.WriteLine("endloop");
// streamWriter.WriteLine("endfacet");
// }
//}
//streamWriter.Close();
}
public void ExportModelToDirectoryWithExportOptions(Model model, String directory, ExportOptions exportOptions)
{
//TODO: Figure out what to do with non-version 4 models.
if (model != null && model.Version != 4)
{
return;
}
NumberFormatInfo format = new NumberFormatInfo();
format.NumberDecimalSeparator = ".";
if (exportOptions.Package)
{
try
{
DirectoryInfo directoryInfo = Directory.CreateDirectory(directory + @"\" + Path.GetFileNameWithoutExtension(model.Name));
directory = directoryInfo.FullName;
}
catch (Exception) { }
}
if (exportOptions.Textures)
{
ImageImporter imageImporter = new ImageImporter();
ImageExporter imageExporter = new ImageExporter();
foreach (String textureString in model.TextureStrings)
{
MemoryStream textureMemoryStream = AssetManager.Instance.CreateAssetMemoryStreamByName(textureString);
if (textureMemoryStream == null)
{
continue;
}
Image textureImage = imageImporter.LoadImageFromStream(textureMemoryStream);
if (textureImage == null)
{
continue;
}
imageExporter.SaveImage(textureImage, exportOptions.TextureFormat.ImageType, directory + @"\" + Path.GetFileNameWithoutExtension(textureString) + @"." + exportOptions.TextureFormat.Extension);
}
}
String path = directory + @"\" + Path.GetFileNameWithoutExtension(model.Name) + ".obj";
FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Write);
StreamWriter streamWriter = new StreamWriter(fileStream);
for (Int32 i = 0; i < model.Meshes.Length; ++i)
{
Mesh mesh = model.Meshes[i];
MaterialDefinition materialDefinition = MaterialDefinitionManager.Instance.MaterialDefinitions[model.Materials[(Int32)mesh.MaterialIndex].MaterialDefinitionHash];
VertexLayout vertexLayout = MaterialDefinitionManager.Instance.VertexLayouts[materialDefinition.DrawStyles[0].VertexLayoutNameHash];
//position
VertexLayout.Entry.DataTypes positionDataType;
Int32 positionOffset;
Int32 positionStreamIndex;
vertexLayout.GetEntryInfoFromDataUsageAndUsageIndex(VertexLayout.Entry.DataUsages.Position, 0, out positionDataType, out positionStreamIndex, out positionOffset);
Mesh.VertexStream positionStream = mesh.VertexStreams[positionStreamIndex];
for (Int32 j = 0; j < mesh.VertexCount; ++j)
{
Vector3 position = readVector3(exportOptions, positionOffset, positionStream, j);
position.X *= exportOptions.Scale.X;
position.Y *= exportOptions.Scale.Y;
position.Z *= exportOptions.Scale.Z;
streamWriter.WriteLine("v " + position.X.ToString(format) + " " + position.Y.ToString(format) + " " + position.Z.ToString(format));
}
//texture coordinates
if (exportOptions.TextureCoordinates)
{
VertexLayout.Entry.DataTypes texCoord0DataType;
Int32 texCoord0Offset = 0;
Int32 texCoord0StreamIndex = 0;
Boolean texCoord0Present = vertexLayout.GetEntryInfoFromDataUsageAndUsageIndex(VertexLayout.Entry.DataUsages.Texcoord, 0, out texCoord0DataType, out texCoord0StreamIndex, out texCoord0Offset);
if (texCoord0Present)
{
Mesh.VertexStream texCoord0Stream = mesh.VertexStreams[texCoord0StreamIndex];
for (Int32 j = 0; j < mesh.VertexCount; ++j)
{
Vector2 texCoord;
switch (texCoord0DataType)
{
case VertexLayout.Entry.DataTypes.Float2:
texCoord.X = BitConverter.ToSingle(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + 0);
texCoord.Y = 1.0f - BitConverter.ToSingle(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + 4);
break;
case VertexLayout.Entry.DataTypes.float16_2:
texCoord.X = Half.FromBytes(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + texCoord0Offset + 0).ToSingle();
texCoord.Y = 1.0f - Half.FromBytes(texCoord0Stream.Data, (j * texCoord0Stream.BytesPerVertex) + texCoord0Offset + 2).ToSingle();
break;
default:
texCoord.X = 0;
texCoord.Y = 0;
break;
}
streamWriter.WriteLine("vt " + texCoord.X.ToString(format) + " " + texCoord.Y.ToString(format));
}
}
}
}
//faces
UInt32 vertexCount = 0;
for (Int32 i = 0; i < model.Meshes.Length; ++i)
{
Mesh mesh = model.Meshes[i];
streamWriter.WriteLine("g Mesh" + i);
for (Int32 j = 0; j < mesh.IndexCount; j += 3)
{
UInt32 index0, index1, index2;
switch (mesh.IndexSize)
{
case 2:
index0 = vertexCount + BitConverter.ToUInt16(mesh.IndexData, (j * 2) + 0) + 1;
index1 = vertexCount + BitConverter.ToUInt16(mesh.IndexData, (j * 2) + 2) + 1;
index2 = vertexCount + BitConverter.ToUInt16(mesh.IndexData, (j * 2) + 4) + 1;
break;
case 4:
index0 = vertexCount + BitConverter.ToUInt32(mesh.IndexData, (j * 4) + 0) + 1;
index1 = vertexCount + BitConverter.ToUInt32(mesh.IndexData, (j * 4) + 4) + 1;
index2 = vertexCount + BitConverter.ToUInt32(mesh.IndexData, (j * 4) + 8) + 1;
break;
default:
index0 = 0;
index1 = 0;
index2 = 0;
break;
}
if (exportOptions.Normals && exportOptions.TextureCoordinates)
{
streamWriter.WriteLine("f " + index2 + "/" + index2 + "/" + index2 + " " + index1 + "/" + index1 + "/" + index1 + " " + index0 + "/" + index0 + "/" + index0);
}
else if (exportOptions.Normals)
{
streamWriter.WriteLine("f " + index2 + "//" + index2 + " " + index1 + "//" + index1 + " " + index0 + "//" + index0);
}
else if (exportOptions.TextureCoordinates)
{
streamWriter.WriteLine("f " + index2 + "/" + index2 + " " + index1 + "/" + index1 + " " + index0 + "/" + index0);
}
else
{
streamWriter.WriteLine("f " + index2 + " " + index1 + " " + index0);
}
}
vertexCount += (UInt32)mesh.VertexCount;
}
streamWriter.Close();
}
private static void exportModelAsSTLToDirectory(Model model, string directory, ExportOptions options)
{
//NumberFormatInfo format = new NumberFormatInfo();
//format.NumberDecimalSeparator = ".";
//String path = directory + @"\" + Path.GetFileNameWithoutExtension(model.Name) + ".stl";
//FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Write);
//StreamWriter streamWriter = new StreamWriter(fileStream);
//for (Int32 i = 0; i < model.Meshes.Length; ++i)
//{
// Mesh mesh = model.Meshes[i];
// for (Int32 j = 0; j < mesh.Indices.Length; j += 3)
// {
// Vector3 normal = Vector3.Zero;
// normal += mesh.Vertices[mesh.Indices[j + 0]].Normal;
// normal += mesh.Vertices[mesh.Indices[j + 1]].Normal;
// normal += mesh.Vertices[mesh.Indices[j + 2]].Normal;
// normal.Normalize();
// streamWriter.WriteLine("facet normal " + normal.X.ToString("E", format) + " " + normal.Y.ToString("E", format) + " " + normal.Z.ToString("E", format));
// streamWriter.WriteLine("outer loop");
// for (Int32 k = 0; k < 3; ++k)
// {
// Vector3 vertex = mesh.Vertices[mesh.Indices[j + k]].Position;
// streamWriter.WriteLine("vertex " + vertex.X.ToString("E", format) + " " + vertex.Y.ToString("E", format) + " " + vertex.Z.ToString("E", format));
// }
// streamWriter.WriteLine("endloop");
// streamWriter.WriteLine("endfacet");
// }
//}
//streamWriter.Close();
}
