static void ConvertDLPToOBJ(DLPFile dlp)
{
if (dlp == null)
{
throw new InvalidOperationException("Cannot convert a null DLP object to OBJ!");
}
var rootDir = Path.GetFullPath($"{Path.GetDirectoryName(dlp.FileName)}.\\..\\");
var objPath = Path.ChangeExtension(dlp.FileName, ".obj");
var mtlPath = Path.ChangeExtension(dlp.FileName, ".mtl");
var obj = new StringBuilder();
var mtl = new StringBuilder();
obj.AppendLine($"# DLP converted to OBJ using ARTS Manager");
obj.AppendLine($"# Source: {dlp.FileName}");
obj.AppendLine();
obj.AppendLine($"# Vertices: {dlp.Vertices.Count}");
obj.AppendLine($"# Patches: {dlp.Patches.Count}");
obj.AppendLine($"# Groups: {dlp.Groups.Count}");
obj.AppendLine();
obj.AppendLine($"mtllib {Path.GetFileName(mtlPath)}");
obj.AppendLine();
mtl.AppendLine($"# DLP7 materials");
mtl.AppendLine();
var vxIndex = 0; // increases when we add a new vertex
var minIndex = 0; // for normals/uvs
var materialLookup = new Dictionary <string, ObjMaterial>();
var materials = new Dictionary <string, ObjMaterial>();
foreach (var group in dlp.Groups)
{
var objF = new StringBuilder();
var objVx = new StringBuilder();
var objVn = new StringBuilder();
var objVt = new StringBuilder();
var vBuf = new Dictionary <int, int>();
var curMtl = 0;
var curTex = 0;
foreach (var p in group.Patches)
{
var patch = dlp.Patches[p];
if (patch.Stride != 1)
{
continue;
}
if ((patch.Resolution < 3) || (patch.Resolution > 4))
{
continue;
}
if ((patch.Material != curMtl) || (patch.Texture != curTex))
{
curMtl = patch.Material;
curTex = patch.Texture;
var mat = (curMtl != 0) ? dlp.Materials[curMtl - 1] : null;
var tex = (curTex != 0) ? dlp.Textures[curTex - 1] : null;
var materialName = "";
if ((mat != null) && (tex != null))
{
materialName = $"{mat.Name}|{tex.Name}";
}
else
{
materialName = (mat != null) ? mat.Name : (tex != null) ? tex.Name : "";
}
if (String.IsNullOrEmpty(materialName))
{
throw new InvalidOperationException("apparently this patch doesn't have any clothes on...");
}
if (!materialLookup.ContainsKey(materialName))
{
var material = new ObjMaterial(materialName);
var texture = (tex != null) ? tex.Name : null;
var hasAlpha = false;
if (texture != null)
{
var tex16OPath = Path.Combine(rootDir, $"TEX16O\\{texture}.DDS");
var tex16APath = Path.Combine(rootDir, $"TEX16A\\{texture}.DDS");
var hasTex16O = File.Exists(tex16OPath);
var hasTex16A = File.Exists(tex16APath);
texture = (hasTex16O) ? tex16OPath : ((hasAlpha = hasTex16A)) ? tex16APath : $"{texture}.DDS";
}
if (mat != null)
{
material.SetComponentColor(ComponentType.Ambient, mat.Ambient);
material.SetComponentColor(ComponentType.Diffuse, mat.Diffuse);
material.SetComponentColor(ComponentType.Specular, mat.Specular);
//material.Specularity = mat.Shininess;
}
if (tex != null)
{
// maybe have a thing that checks if its 3ds max?
//material.SetComponentMap(ComponentType.Ambient, texture);
material.SetComponentMap(ComponentType.Diffuse, texture);
if (hasAlpha)
{
material.Properties["d"] = "0.0000";
material.Properties["map_d"] = texture;
}
}
// compile
material.Save(mtl);
materialLookup.Add(materialName, material);
materials.Add(materialName, material);
}
objF.AppendLine($"usemtl {materialLookup[materialName].Name}");
}
// open face
objF.Append("f ");
for (int i = 0; i < patch.Resolution; i++)
{
var v = patch.Vertices[i];
int vx = v.Vertex;
var vt1 = v.SMap;
var vt2 = (-v.TMap - 1);
var vn = v.Normals;
if (!vBuf.ContainsKey(vx))
{
var vertex = dlp.Vertices[vx];
objVx.AppendLine($"v {vertex.X:F6} {vertex.Y:F6} {vertex.Z:F6}");
vBuf.Add(vx, vxIndex++);
}
// translate to index in buffer
vx = vBuf[vx];
objVt.AppendLine($"vt {vt1:F6} {vt2:F6} 1.000000");
objVn.AppendLine($"vn {vn.X:F6} {vn.Y:F6} {vn.Z:F6}");
// append face
objF.AppendFormat("{0}/{1}/{1} ", (vx + 1), (i + minIndex + 1));
}
minIndex += patch.Resolution;
// move to next face
objF.AppendLine();
}
// commit changes, move along
obj.AppendLine($"o {group.Name}");
obj.AppendLine(objVx.ToString());
obj.AppendLine(objVn.ToString());
obj.AppendLine(objVt.ToString());
obj.AppendLine($"g {group.Name}");
obj.AppendLine(objF.ToString());
}
File.WriteAllText(objPath, obj.ToString());
File.WriteAllText(mtlPath, mtl.ToString());
}
