public ObjItem(bool needExporter)
{
ObjExport = needExporter ? new ObjExport() : null;
Vertices = new List <Vector3>();
TextureCoords = new List <Vector2>();
Normals = new List <Vector3>();
Groups = new Dictionary <ObjMaterial, ObjGroup>();
Materials = new Dictionary <string, ObjMaterial>();
}
public static void SaveObjFile(string filePath, List <MeshInfo> meshInfos, MeshType type, ObjExport objExport, bool saveBrushesToTexture, bool isCollada, string sessionId)
{
if (objExport == null)
{
SaveObjFile(filePath, meshInfos, type, saveBrushesToTexture, isCollada, sessionId);
return;
}
var fi = new FileInfo(filePath);
if (fi.Exists)
{
fi.Delete();
}
if (fi.DirectoryName == null)
{
return;
}
var mtlPath = Path.Combine(fi.DirectoryName, Path.GetFileNameWithoutExtension(fi.Name) + ".mtl");
var fiMtl = new FileInfo(mtlPath);
//if (fiMtl.Exists)
// fiMtl.Delete();
var groupIndex = 0;
var materials = new Dictionary <string, ObjMaterial>();
var startPositionIndex = 1;
var startTexIndex = 1;
var startNormalIndex = 1;
var indicesPositions = new List <int>();
var indicesTexCoords = new List <int>();
var indicesNormals = new List <int>();
var positions = new List <Vector3>();
var normals = new List <Vector3>();
var texCoords = new List <Vector2>();
Vector3 A = new Vector3(99999.0f, 99999.0f, 99999.0f);
Vector3 B = new Vector3(-99999.0f, -99999.0f, -99999.0f);
foreach (var meshPartInfo in meshInfos)
{
PickingController.GetAABB(ref A, ref B, meshPartInfo.Positions);
}
objExport.SetObjectAABB(A, B);
foreach (var meshInfo in meshInfos) // faces should write differently
{
if (meshInfo.IndicesNormals.Count == 0)
{
continue;
}
String groupTitle;
if (string.IsNullOrEmpty(meshInfo.Title))
{
groupTitle = "Element_" + groupIndex;
while (materials.ContainsKey(groupTitle))
{
++groupIndex;
groupTitle = "Element_" + groupIndex;
}
++groupIndex;
}
else
{
groupTitle = meshInfo.Title;
}
materials.Add(groupTitle, meshInfo.Material);
for (var i = 0; i < meshInfo.IndicesTexCoords.Count; i++)
{
indicesPositions.Add(startPositionIndex + meshInfo.IndicesPositions[i]);
indicesTexCoords.Add(startTexIndex + meshInfo.IndicesTexCoords[i]);
indicesNormals.Add(startNormalIndex + meshInfo.IndicesNormals[i]);
}
startPositionIndex += (meshInfo.IndicesPositions.Max() + 1);
startTexIndex += (meshInfo.IndicesTexCoords.Max() + 1);
startNormalIndex += (meshInfo.IndicesNormals.Max() + 1);
positions.AddRange(meshInfo.Positions);
normals.AddRange(meshInfo.Normals);
texCoords.AddRange(meshInfo.TexCoords);
}
foreach (var face in objExport.Faces)
{
var index = face.TriangleIndex0 * 3;
for (var l = 0; l < 3; l++)
{
var v = positions[indicesPositions[index + l] - 1];
var vn = normals[indicesNormals[index + l] - 1];
var vt = texCoords[indicesTexCoords[index + l] - 1];
objExport.SetData(v, vt, vn, face, l);
}
if (face.VertexCount == 4)
{
index = face.TriangleIndex1 * 3;
var v = positions[indicesPositions[index + 1] - 1];
var vn = normals[indicesNormals[index + 1] - 1];
var vt = texCoords[indicesTexCoords[index + 1] - 1];
objExport.SetData(v, vt, vn, face, 3);
}
}
using (var sw = new StreamWriter(filePath, false, Encoding.Default))
{
sw.WriteLine("#Produced by HeadShop");
sw.WriteLine(type == MeshType.Accessory ? "#Accessories" : "#HeadShop Model");
sw.WriteLine("#" + DateTime.Now.ToShortDateString());
sw.WriteLine("mtllib " + fiMtl.Name);
sw.WriteLine();
foreach (var v in objExport.Vertices)
{
var resStr = "v " + v.X.ToString(ProgramCore.Nfi) + " " + v.Y.ToString(ProgramCore.Nfi) + " " +
v.Z.ToString(ProgramCore.Nfi);
sw.WriteLine(resStr);
}
foreach (var vt in objExport.TexCoords)
{
var resStr = "vt " + vt.X.ToString(ProgramCore.Nfi) + " " + vt.Y.ToString(ProgramCore.Nfi);
sw.WriteLine(resStr);
}
foreach (var vn in objExport.Normals)
{
var resStr = "vn " + vn.X.ToString(ProgramCore.Nfi) + " " + vn.Y.ToString(ProgramCore.Nfi) + " " +
vn.Z.ToString(ProgramCore.Nfi);
sw.WriteLine(resStr);
}
var prevGroup = String.Empty;
foreach (var materialGroup in objExport.MaterialsGroups)
{
if (materialGroup.Groups.Count == 0 || !materialGroup.Groups[0].IsValid)
{
continue;
}
for (var i = 0; i < materialGroup.Groups.Count; i++)
{
var group = materialGroup.Groups[i];
if (!group.IsValid)
{
continue;
}
if (!prevGroup.Equals(group.Group))
{
sw.WriteLine("g " + group.Group);
prevGroup = group.Group;
}
if (i == 0)
{
sw.WriteLine("usemtl " + materialGroup.Material);
}
for (var j = group.StartFaceIndex; j <= group.EndFaceIndex; j++)
{
var face = objExport.Faces[j];
var resStr = "f ";
foreach (var vertex in face.FaceVertices)
{
resStr += (vertex.VertexIndex).ToString(ProgramCore.Nfi);
if (objExport.TexCoords.Count > 0)
{
resStr += "/" + (vertex.TextureIndex).ToString(ProgramCore.Nfi);
}
if (objExport.Normals.Count > 0)
{
resStr += "/" + (vertex.NormalIndex).ToString(ProgramCore.Nfi);
}
resStr += " ";
}
sw.WriteLine(resStr.Remove(resStr.Length - 1));
}
}
}
}
SaveMaterial(mtlPath, materials, type, fi, saveBrushesToTexture, isCollada, string.Empty);
}
public static void SaveObjFile(string filePath, RenderMesh mesh, MeshType type, ObjExport objExport, string sessionId, bool saveBrushesToTexture = false, bool isCollada = false)
{
var meshInfos = new List <MeshInfo>();
foreach (var part in mesh.Parts)
{
meshInfos.Add(new MeshInfo(part, mesh.MorphScale));
}
SaveObjFile(filePath, meshInfos, type, objExport, saveBrushesToTexture, isCollada, sessionId);
}
