private static void LoadMtlib(string filePath, ref ObjItem result)
{
var fi = new FileInfo(filePath);
if (!fi.Exists)
return;
using (var sr = new StreamReader(fi.FullName))
{
var material = default(ObjMaterial);
while (!sr.EndOfStream)
{
var currentLine = sr.ReadLine();
if (String.IsNullOrWhiteSpace(currentLine) || currentLine[0] == '#')
continue;
var fields = currentLine.Trim().Split(null, 2);
var keyword = fields[0].Trim().ToLower();
var data = fields[1].Trim();
switch (keyword)
{
case "newmtl":
var dt = data.ToLower();
if (result.Materials.ContainsKey(dt))
material = result.Materials[dt];
else
{
material = new ObjMaterial(data);
result.Materials.Add(dt, material);
}
break;
case "ka":
if (material != null)
material.AmbientColor = ParseVector3(data);
break;
case "kd":
if (material != null)
{
var color = ParseVector3(data);
material.DiffuseColor = new Vector4(color.X, color.Y, color.Z, 1f);
}
break;
case "ks":
if (material != null)
material.SpecularColor = ParseVector3(data);
break;
case "ns":
if (material != null)
material.SpecularCoefficient = StringConverter.ToFloat(data);
break;
case "ni":
if (material != null)
material.OpticalDensity = StringConverter.ToFloat(data);
break;
case "d":
case "tr":
if (material != null)
material.Transparency = StringConverter.ToFloat(data);
break;
case "illum":
if (material != null)
material.IlluminationModel = StringConverter.ToInt(data);
break;
case "map_ka":
if (material != null)
material.AmbientTextureMap = GetMapFullPath(data, filePath);
break;
case "map_kd":
if (material != null)
material.DiffuseTextureMap = GetMapFullPath(data, filePath);
break;
case "map_ks":
if (material != null)
material.SpecularTextureMap = GetMapFullPath(data, filePath);
break;
case "map_ns":
if (material != null)
material.SpecularHighlightTextureMap = GetMapFullPath(data, filePath);
break;
case "map_d":
if (material != null)
material.TransparentTextureMap = GetMapFullPath(data, filePath);
break;
case "map_bump":
case "bump":
if (material != null)
material.BumpMap = GetMapFullPath(data, filePath);
break;
case "disp":
if (material != null)
material.DisplacementMap = GetMapFullPath(data, filePath);
break;
case "decal":
if (material != null)
material.StencilDecalMap = GetMapFullPath(data, filePath);
break;
}
}
}
}
public static ObjItem LoadObjFile(string filePath, bool needExporter)
{
var result = new ObjItem(needExporter);
var fi = new FileInfo(filePath);
if (!fi.Exists)
return null;
using (var sr = new StreamReader(fi.FullName, Encoding.Default))
{
var currentGroup = default(ObjGroup);
CheckAndAttachDefaultGroup(ref currentGroup, ref result);
var index = 0;
var lastGroupName = String.Empty;
if (ProgramCore.PluginMode)
{
var folderPath = Path.Combine(Application.StartupPath, "Models\\Model", ProgramCore.Project.ManType.GetObjDirPath());
switch (ProgramCore.Project.ManType)
{
case ManType.Male:
LoadMtlib(Path.Combine(folderPath, "Male.mtl"), ref result);
break;
case ManType.Female:
LoadMtlib(Path.Combine(folderPath, "Fem.mtl"), ref result);
break;
case ManType.Child:
LoadMtlib(Path.Combine(folderPath, "Child.mtl"), ref result);
break;
}
}
while (!sr.EndOfStream)
{
var currentLine = sr.ReadLine();
if (String.IsNullOrWhiteSpace(currentLine) || currentLine[0] == '#')
{
if (currentLine == "#Accessories")
result.accessoryByHeadShop = true;
else if (currentLine == "#HeadShop Model")
result.modelByHeadShop = true;
continue;
}
var fields = currentLine.Trim().Split(null, 2);
if (fields.Length < 2)
{
ProgramCore.EchoToLog(String.Format("Bad obj file format. File: '{0}'", fi.FullName), EchoMessageType.Warning);
continue;
}
var keyword = fields[0].Trim().ToLower();
var data = fields[1].Trim();
switch (keyword)
{
case "v": // verticles
var vertex = ParseVector3(data);
result.Vertices.Add(vertex);
if (needExporter)
result.ObjExport.Vertices.Add(vertex);
break;
case "vt": // texture coords
var textureCoord = ParseTextureCoords(data);
result.TextureCoords.Add(textureCoord);
if (needExporter)
result.ObjExport.TexCoords.Add(textureCoord);
break;
case "vn": // normals
var normal = ParseVector3(data);
result.Normals.Add(normal);
if (needExporter)
result.ObjExport.Normals.Add(normal);
break;
case "f": // faces
var face = ParceFace(data);
if (needExporter)
{
face.ObjExportIndex = result.ObjExport.Faces.Count;
result.ObjExport.Faces.Add(new ObjExportFace(face.Count, face.Vertices));
}
currentGroup.AddFace(face);
index++;
break;
case "g": // start group
if (needExporter)
{
lastGroupName = data;
if (result.ObjExport.MaterialsGroups.Count > 0)
{
result.ObjExport.MaterialsGroups.Last().Groups.Last().EndFaceIndex = index - 1;
result.ObjExport.MaterialsGroups.Last().Groups.Add(new ObjExportGroup
{
Group = data,
StartFaceIndex = index
});
}
}
break;
case "mtllib": //parse mtl file
var path = Path.Combine(fi.DirectoryName, data);
LoadMtlib(path, ref result);
break;
case "usemtl":
if (needExporter)
{
if (result.ObjExport.MaterialsGroups.Count > 0)
result.ObjExport.MaterialsGroups.Last().Groups.Last().EndFaceIndex = index - 1;
result.ObjExport.MaterialsGroups.Add(new ObjExportMaterial
{
Material = data,
Groups = new List<ObjExportGroup>
{
new ObjExportGroup
{
Group = lastGroupName,
StartFaceIndex = index
}
}
});
}
var lowerData = data.ToLower();
var materialKey = result.Materials.Keys.SingleOrDefault(x => x == lowerData);
ObjMaterial material;
if (materialKey == null) // if can't parse mtl, create default group
{
material = new ObjMaterial(lowerData);
result.Materials.Add(lowerData, material);
}
else
material = result.Materials[materialKey];
if (result.Groups.ContainsKey(material))
currentGroup = result.Groups[material];
else
{
currentGroup = new ObjGroup(material.Name);
result.Groups.Add(material, currentGroup);
}
break;
}
}
if (result.ObjExport != null && result.ObjExport.MaterialsGroups.Count > 0 && needExporter)
result.ObjExport.MaterialsGroups.Last().Groups.Last().EndFaceIndex = index - 1;
}
return result;
}
private static void CheckAndAttachDefaultGroup(ref ObjGroup currentGroup, ref ObjItem result)
{
if (currentGroup == null)
{
currentGroup = new ObjGroup("default");
var defaultGroupName = "HeadShopDefaultMaterial".ToLower();
var defaultMaterial = new ObjMaterial(defaultGroupName);
result.Groups.Add(defaultMaterial, currentGroup);
result.Materials.Add(defaultGroupName, defaultMaterial);
}
}
public BaseRenderMesh()
{
Id = Guid.NewGuid();
Material = new ObjMaterial(Id.ToString().Replace("-", ""));
}