public static ObjGeometry MergeGeometries(IEnumerable <ObjGeometry> geometries, ObjMaterial material)
{
ObjGeometry mergedGeometry = new ObjGeometry(material);
foreach (ObjGeometry item in geometries)
{
mergedGeometry.Faces.AddRange(item.Faces);
}
return(mergedGeometry);
}
private static void WriteObj(Int32Rect[][] tiles, BitmapSource[][][] imagedata, ConvertOptions options)
{
var positions = new Dictionary <Vector3, int>();
var normals = new Dictionary <Vector3, int>();
var uvs = new Dictionary <Vector2, int>();
var normal = new Vector3(0, 0, 1);
var xcount = (options.ImageWidth.Value + options.TileWidth - 1) / options.TileWidth;
var ycount = (options.ImageHeight.Value + options.TileHeight - 1) / options.TileHeight;
var folder = Path.GetDirectoryName(options.InputFileName);
var filename = Path.GetFileNameWithoutExtension(options.InputFileName);
var mtl = new ObjMaterialFile();
var obj = new ObjFile();
obj.MaterialLibraries.Add($"{filename}.mtl");
for (var y = 0; y < ycount; y++)
{
for (var x = 0; x < xcount; x++)
{
var tile = tiles[y][x];
var texture = imagedata[0][y][x];
var encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(texture));
var matname = $"{filename}_{y:D3}_{x:D3}";
using (var outfile = File.Open(Path.Combine(folder, $"{matname}.png"), FileMode.Create, FileAccess.Write, FileShare.None))
{
encoder.Save(outfile);
}
var material = new ObjMaterial(matname);
material.DiffuseMap = new ObjMaterialMap($"{matname}.png");
mtl.Materials.Add(material);
var face = new ObjFace();
face.MaterialName = matname;
face.Vertices.Add(new ObjTriplet(
positions.AddUniqueIndex(new Vector3(tile.X, -(tile.Y), 0)),
uvs.AddUniqueIndex(new Vector2(0, (float)tile.Height / texture.PixelHeight)),
normals.AddUniqueIndex(normal)
));
face.Vertices.Add(new ObjTriplet(
positions.AddUniqueIndex(new Vector3(tile.X + tile.Width, -(tile.Y), 0)),
uvs.AddUniqueIndex(new Vector2((float)tile.Width / texture.PixelWidth, (float)tile.Height / texture.PixelHeight)),
normals.AddUniqueIndex(normal)
));
face.Vertices.Add(new ObjTriplet(
positions.AddUniqueIndex(new Vector3(tile.X + tile.Width, -(tile.Y + tile.Height), 0)),
uvs.AddUniqueIndex(new Vector2((float)tile.Width / texture.PixelWidth, 0)),
normals.AddUniqueIndex(normal)
));
face.Vertices.Add(new ObjTriplet(
positions.AddUniqueIndex(new Vector3(tile.X, -(tile.Y + tile.Height), 0)),
uvs.AddUniqueIndex(new Vector2(0, 0)),
normals.AddUniqueIndex(normal)
));
obj.Faces.Add(face);
}
}
(from x in positions orderby x.Value select x.Key).ToList().ForEach(x => obj.Vertices.Add(x.ToObjVertex()));
(from x in normals orderby x.Value select x.Key).ToList().ForEach(x => obj.VertexNormals.Add(x.ToObjVector3()));
(from x in uvs orderby x.Value select x.Key).ToList().ForEach(x => obj.TextureVertices.Add(x.ToObjVector3()));
mtl.WriteTo(Path.Combine(folder, $"{filename}.mtl"));
obj.WriteTo(Path.Combine(folder, $"{filename}.obj"));
}
private static string MeshToString(MeshFilter mf, Dictionary <string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.GetComponent <Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = mf.transform.TransformPoint(lv);
// this is not how to convert from left to right handed coordinates
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 lv in m.normals)
{
Vector3 wv = mf.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int i = 0; i < m.subMeshCount; i++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(mats[i].name).Append("\n");
sb.Append("usemap ").Append(mats[i].name).Append("\n");
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[i].name;
if (mats[i].mainTexture)
{
// #if UNITY_EDITOR
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[i].mainTexture);
}
// #else
// objMaterial.textureName = mats[i].mainTexture.name;
// #endif
else
{
objMaterial.textureName = null;
}
materialList.Add(objMaterial.name, objMaterial);
int[] tri = m.GetTriangles(i);
for (int n = 0; n < tri.Length; n += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
tri[n] + 1 + vertexOffset, tri[n + 1] + 1 + normalOffset, tri[n + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
public void AddObject(IObjObject aObject, ObjMaterial anObjMaterial)
{
aObject.Material = anObjMaterial;
AddObject(aObject);
}
public MeshInfo(DynamicRenderMesh parent, Vertex[] vertices, Matrix4 transformMatrix)
{
Material = parent.Material;
Title = parent.Title;
var positionsMapping = new Dictionary <Vector3, int>(new VectorEqualityComparer());
var texCoordsMapping = new Dictionary <Vector2, int>(new VectorEqualityComparer());
var normalsMapping = new Dictionary <Vector3, int>(new VectorEqualityComparer());
foreach (var vertex in vertices)
{
// var index = i * 3;
var position = vertex.Position;
var texCoord = vertex.TexCoord;
texCoord.Y = 1.0f - texCoord.Y;
var normal = vertex.Normal;
if (transformMatrix != Matrix4.Zero)
{
var scaleCoef = 1f;
if (parent.meshType == MeshType.Accessory)
{
scaleCoef = 246f;
}
else if (parent.meshType == MeshType.Head)
{
scaleCoef = PickingController.GetHeadScale(ProgramCore.Project.ManType);
}
else
{
scaleCoef = PickingController.GetHairScale(ProgramCore.Project.ManType);
}
bool useExporter = ProgramCore.PluginMode &&
ProgramCore.MainForm.ctrlRenderControl.pickingController.ObjExport != null;
var invScale = Matrix4.CreateScale(useExporter ? 1.0f : 1.0f / scaleCoef);
var tempTransform = transformMatrix;
tempTransform *= invScale;
if (useExporter)
{
var d = ProgramCore.MainForm.ctrlRenderControl.pickingController.ObjExport.Delta;
d.Y -= 0.0060975609f;
tempTransform *=
Matrix4.CreateTranslation(d * scaleCoef);
}
position = Vector3.Transform(position, tempTransform);
normal = Vector3.Transform(normal, tempTransform);
}
int id;
if (!positionsMapping.TryGetValue(position, out id))
{
id = Positions.Count;
Positions.Add(position);
positionsMapping.Add(position, id);
}
IndicesPositions.Add(id);
if (!normalsMapping.TryGetValue(normal, out id))
{
id = Normals.Count;
Normals.Add(normal);
normalsMapping.Add(normal, id);
}
IndicesNormals.Add(id);
if (!texCoordsMapping.TryGetValue(texCoord, out id))
{
id = TexCoords.Count;
TexCoords.Add(texCoord);
texCoordsMapping.Add(texCoord, id);
}
IndicesTexCoords.Add(id);
}
}
private List <ObjGroup> CreateRenderGameObjects()
{
Dictionary <ObjectGame.ObjcetIds, PlainBmpTexture> gameObjectsTextures =
RenderObjects.RenderObjects.CreateGameObjectsTextures(new Size(20, 20), program);
List <ObjGroup> tempObjList = new List <ObjGroup>();
List <ObjectGame> gameObjects = TheGameStatus.GameObjects;
foreach (ObjectGame gameObject in gameObjects)
{
Vector tempLoc;
ObjGroupGameObject tempGroup = null;
ObjGameObject tempObjObject;
switch (gameObject.TheObjectId)
{
case ObjectGame.ObjcetIds.Player:
tempGroup = new ObjGroupGameObjectPlayer(program)
{
TheObjectGame = gameObject
};
tempLoc = new Vector(0.0f, 0.0f);
tempLoc -= new Vector(gameObject.Diameter * 0.5f, gameObject.Diameter * 0.5f);
tempObjObject =
new ObjGameObject(ObjectPrimitives.CreateCube(new Vector3(tempLoc.X, 0, tempLoc.Y),
new Vector3(tempLoc.X + gameObject.Diameter, gameObject.Diameter,
tempLoc.Y + gameObject.Diameter),
true));
ObjMaterial tempMaterial = TheResourceManager.GetFromFile(program, "tileTestMike200x200.png");
tempObjObject.Material = tempMaterial;
tempGroup.AddObject(tempObjObject);
playerObjObject = tempGroup;
tempGroup.Location = gameObject.Location;
break;
case ObjectGame.ObjcetIds.Enemy:
tempGroup = new ObjGroupGameObjectEnemy(program)
{
TheObjectGame = gameObject
};
tempLoc = new Vector(0.0f, 0.0f);
tempLoc -= new Vector(gameObject.Diameter * 0.5f, gameObject.Diameter * 0.5f);
tempObjObject =
new ObjGameObject(ObjectPrimitives.CreateCube(new Vector3(tempLoc.X, 0, tempLoc.Y),
new Vector3(tempLoc.X + gameObject.Diameter, gameObject.Diameter,
tempLoc.Y + gameObject.Diameter),
true));
ObjMaterial tempMaterial1 = TheResourceManager.GetFromFile(program, "tileTestMike200x200.png");
tempObjObject.Material = tempMaterial1;
tempGroup.AddObject(tempObjObject);
tempGroup.Location = gameObject.Location;
break;
case ObjectGame.ObjcetIds.Turret:
ObjGroup tempGroup1 = ObjLoader.LoadObjFileToObjMesh(program, @"./Resources/Models/Turret1.obj");
ObjectTurret tempTurret = (ObjectTurret)gameObject;
tempGroup = new ObjGroupGameObjectTurret(tempGroup1)
{
Location = gameObject.Location,
Scale = Vector3.UnitScale * 0.3f,
TheObjectGame = tempTurret
};
// tempGroup.Orientation = tempTurret.Orientation;
break;
default:
tempLoc = new Vector(0.0f, 0.0f);
tempLoc -= new Vector(gameObject.Diameter * 0.5f, gameObject.Diameter * 0.5f);
tempObjObject =
new ObjGameObject(ObjectPrimitives.CreateCube(new Vector3(tempLoc.X, 0, tempLoc.Y),
new Vector3(tempLoc.X + gameObject.Diameter, gameObject.Diameter,
tempLoc.Y + gameObject.Diameter),
true))
{
Material = gameObjectsTextures[gameObject.TheObjectId].Material
};
tempGroup.AddObject(tempObjObject);
tempGroup.TheObjectGame = gameObject;
break;
}
tempObjList.Add(tempGroup);
}
return(tempObjList);
}
private ObjMaterial ProcessMaterial(string mtlName, string folderPath)
{
ObjMaterial material = null;
string filePath = Path.Combine(folderPath, mtlName);
var input = File.ReadLines(filePath);
foreach (string line in input)
{
string[] parts = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length > 0)
{
switch (parts[0].Trim('\t', ' '))
{
case "newmtl":
material = new ObjMaterial(parts[1]);
break;
case "map_Kd":
string textureName = parts[1];
material.DiffuseTexture = new Bitmap(Path.Combine(folderPath, textureName));
break;
}
}
}
return material;
}
public static string MeshToString(MeshFilter mf, Dictionary <string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.GetComponent <Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
// foreach(Vector3 v in m.vertices) {
// sb.Append(string.Format("v {0} {1} {2}\n",v.x,v.y,v.z));
// }
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = mf.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
// foreach(Vector3 v in m.normals) {
// sb.Append(string.Format("vn {0} {1} {2}\n",v.x,v.y,v.z));
// }
foreach (Vector3 lv in m.normals)
{
Vector3 wv = mf.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
int countMat = m.subMeshCount;
if (mats == null)
{
Debug.LogWarning($"NavMeshExporter MeshToString Error - 没有找到材质");
return(sb.ToString());
}
else if (mats.Length < countMat)
{
Debug.LogWarning($"NavMeshExporter MeshToString Error - 共享材质数量小于该物体的子物体数量 - {mats.Length} / {countMat}");
countMat = mats.Length;
}
for (int material = 0; material < countMat; material++)
{
string nameMat = "null";
Texture mainTexture = null;
if (mats[material] != null)
{
nameMat = mats[material].name;
mainTexture = mats[material].mainTexture;
}
sb.Append("\n");
sb.Append("usemtl ").Append(nameMat).Append("\n");
sb.Append("usemap ").Append(nameMat).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = nameMat;
if (mainTexture)
{
objMaterial.textureName = AssetDatabase.GetAssetPath(mainTexture);
}
else
{
objMaterial.textureName = null;
}
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
// int[] triangles = m.GetTriangles(material);
// for (int i=0;i<triangles.Length;i+=3) {
// sb.Append(string.Format("f {0}/{0}/{0} {1}/{1}/{1} {2}/{2}/{2}\n",
// triangles[i]+1, triangles[i+1]+1, triangles[i+2]+1));
// }
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private static string MeshToString(MeshFilter mf, Dictionary<string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.GetComponent<Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
foreach(Vector3 lv in m.vertices)
{
Vector3 wv = lv;
// this is not how to convert from left to right handed coordinates
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n",-wv.x,wv.y,wv.z));
}
sb.Append("\n");
foreach(Vector3 lv in m.normals)
{
Vector3 wv = lv;
sb.Append(string.Format("vn {0} {1} {2}\n",-wv.x,wv.y,wv.z));
}
sb.Append("\n");
foreach(Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n",v.x,v.y));
}
for (int i = 0; i < m.subMeshCount; i ++)
{
sb.Append("\n");
sb.Append("g ").Append(mats[i].name).Append("\n");
sb.Append("usemtl ").Append(mats[i].name).Append("\n");
sb.Append("usemap ").Append(mats[i].name).Append("\n");
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[i].name;
if (mats[i].mainTexture)
objMaterial.textureName = UnityEditor.AssetDatabase.GetAssetPath(mats[i].mainTexture);
else
objMaterial.textureName = null;
materialList.Add(objMaterial.name, objMaterial);
int[] tri = m.GetTriangles(i);
for (int n = 0; n < tri.Length; n += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
tri[n]+1 + vertexOffset, tri[n+1]+1 + normalOffset, tri[n+2]+1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return sb.ToString();
}
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());
}
private static string SkinnedMeshToString(SkinnedMeshRenderer smr, Dictionary <string, ObjMaterial> materialList)
{
Mesh m = smr.sharedMesh;
if (m == null)
{
return("");
}
if (!smr.enabled || !smr.gameObject.activeInHierarchy)
{
return("");
}
if (m.uv.Length == 0)
{
//TODO figure out why all the vertices explode when uvs not set
VadRLogger.error("Skipping export of skinned mesh \"" + smr.name + "\". Exporting meshes must be unwrapped");
return("");
}
Material[] mats = smr.sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("o ").Append(smr.name).Append("\n");
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = smr.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 lv in m.normals)
{
Vector3 wv = smr.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
Vector2 textureScale = Vector3.one;
if (mats.Length > 0 && mats[0] != null && mats[0].HasProperty("_MainTex"))
{
textureScale = mats[0].GetTextureScale("_MainTex");
}
foreach (Vector3 v in m.uv)
{
//scale uvs to deal with tiled textures
sb.Append(string.Format("vt {0} {1}\n", v.x * textureScale.x, v.y * textureScale.y));
}
for (int material = 0; material < m.subMeshCount; material++)
{
sb.Append("\n");
if (material >= mats.Length)
{
continue;
}
if (mats[material] == null)
{
sb.Append("usemtl ").Append("null").Append("\n");
}
else
{
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
//sb.Append("usemap ").Append(mats[material].name).Append("\n");
}
//See if this material is already in the materiallist.
try
{
if (mats[material] == null)
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = "null";
objMaterial.textureName = null;
objMaterial.material = new Material(Shader.Find("Unlit/Color"));
objMaterial.material.color = Color.magenta;
materialList.Add(objMaterial.name, objMaterial);
}
else
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
{
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
}
else
{
objMaterial.textureName = null;
}
objMaterial.material = mats[material];
materialList.Add(objMaterial.name, objMaterial);
}
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private static string MeshToString(MeshFilter mf)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.GetComponent <Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = mf.transform.TransformPoint(lv);
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 lv in m.normals)
{
Vector3 wv = mf.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int material = 0; material < m.subMeshCount; material++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
sb.Append("usemap ").Append(mats[material].name).Append("\n");
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
{
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
}
else
{
objMaterial.textureName = null;
}
}
catch (ArgumentException)
{
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private static string MeshToString(MeshFilter mf, Dictionary <string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.GetComponent <Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
GameObject space = GameObject.Find("space");
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = mf.transform.TransformPoint(lv);
Vector3 rv = space.transform.InverseTransformPoint(wv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
//sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
sb.Append(string.Format("v {0} {1} {2}\n", rv.x, rv.y, rv.z));
}
sb.Append("\n");
foreach (Vector3 lv in m.normals)
{
Vector3 wv = mf.transform.TransformDirection(lv);
Vector3 rv = space.transform.InverseTransformDirection(wv);
sb.Append(string.Format("vn {0} {1} {2}\n", -rv.x, rv.y, rv.z));
//sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int material = 0; material < m.subMeshCount; material++)
{
string mat_name;
if (mats[material] == null)
{
mat_name = "Default-Material";
}
else
{
mat_name = mats[material].name;
}
sb.Append("\n");
sb.Append("usemtl ").Append(mat_name).Append("\n");
sb.Append("usemap ").Append(mat_name).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mat_name;
/*
* if (mats[material].mainTexture)
* //objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
* {
* objMaterial.textureName = "";
* //#if UNITY_EDITOR
* objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
* Debug.LogError("objMaterial.textureName : " + AssetDatabase.GetAssetPath(mats[material].mainTexture));
* //#endif
* }
* else
* {
* Debug.LogError("mats[material].mainTexture = null ");
* objMaterial.textureName = null;
*
* }
*/
objMaterial.textureName = null;
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private static string SkinnedMeshToString(SkinnedMeshRenderer skRenderer, Dictionary<string, ObjMaterial> materialList)
{
Mesh mTemp = skRenderer.sharedMesh;
Vector3[] vertices = new Vector3[mTemp.vertexCount];
Vector3[] normals = new Vector3[mTemp.vertexCount];
Matrix4x4[] boneMatrices = new Matrix4x4[skRenderer.bones.Length];
for (int i = 0; i < boneMatrices.Length; i++) {
boneMatrices[i] = skRenderer.bones[i].localToWorldMatrix * mTemp.bindposes[i];
}
for (int i = 0; i < mTemp.vertexCount; i++) {
BoneWeight weight = mTemp.boneWeights[i];
Matrix4x4 bm0 = boneMatrices[weight.boneIndex0];
Matrix4x4 bm1 = boneMatrices[weight.boneIndex1];
Matrix4x4 bm2 = boneMatrices[weight.boneIndex2];
Matrix4x4 bm3 = boneMatrices[weight.boneIndex3];
Matrix4x4 vertexMatrix = new Matrix4x4();
vertexMatrix = Matrix4x4.identity;
for (int n=0; n<16; n++) {
vertexMatrix[n] =
bm0[n] * weight.weight0 +
bm1[n] * weight.weight1 +
bm2[n] * weight.weight2 +
bm3[n] * weight.weight3;
}
/*
Vector3 pos0 = bm0.MultiplyPoint(mTemp.vertices[i]);
Vector3 pos1 = bm1.MultiplyPoint(mTemp.vertices[i]);
Vector3 pos2 = bm2.MultiplyPoint(mTemp.vertices[i]);
Vector3 pos3 = bm3.MultiplyPoint(mTemp.vertices[i]);
Vector3 pos = pos0 * weight.weight0 + pos1 * weight.weight1 + pos2 * weight.weight2 + pos3 * weight.weight3;
vertices[i] = pos;
*/
vertices[i] = vertexMatrix.MultiplyPoint (mTemp.vertices[i]);
normals[i] = vertexMatrix.MultiplyVector (mTemp.normals[i]);
}
Mesh m = new Mesh();
m.vertices = vertices;
m.normals = normals;
m.uv = mTemp.uv;
m.triangles = mTemp.triangles;
m.subMeshCount = mTemp.subMeshCount;
m.RecalculateBounds();
m.RecalculateNormals();
Material[] mats = skRenderer.GetComponent<Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(skRenderer.gameObject.name).Append("\n");
foreach(Vector3 lv in m.vertices)
{
Vector3 wv = skRenderer.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n",-wv.x,wv.y,wv.z));
}
sb.Append("\n");
foreach(Vector3 lv in m.normals)
{
Vector3 wv = skRenderer.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n",-wv.x,wv.y,wv.z));
}
sb.Append("\n");
foreach(Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n",v.x,v.y));
}
for (int material=0; material < m.subMeshCount; material ++) {
sb.Append("\n");
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
sb.Append("usemap ").Append(mats[material].name).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
else
objMaterial.textureName = null;
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i=0;i<triangles.Length;i+=3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i]+1 + vertexOffset, triangles[i+1]+1 + normalOffset, triangles[i+2]+1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return sb.ToString();
}
private static void ParseMaterial(StreamReader sr, ObjContext objContext, string[] token)
{
ObjMaterial objMaterial = new ObjMaterial(token[0]);
string objLine;
while ((objLine = sr.ReadLine()) != null)
{
// Trim spaces
objLine = objLine.Trim();
// Skip comments
if (_CommentLine.IsMatch(objLine))
{
continue;
}
// Stop material parsing on empty line
// Note: is this robust enought? I don't think so.
if (objLine.Length == 0)
{
break;
}
Match commandMatch = _MtlParamLine.Match(objLine);
if (commandMatch.Success == false)
{
continue;
}
string command = commandMatch.Groups["Command"].Value;
string commandToken = commandMatch.Groups["Tokens"].Value.Trim();
string[] commandTokens = Regex.Split(commandToken, " +");
switch (command)
{
case "Ka": // Ambient
objMaterial.Ambient = ParseMaterialColor(objMaterial, commandTokens);
break;
case "Kd": // Diffuse
objMaterial.Diffuse = ParseMaterialColor(objMaterial, commandTokens);
break;
case "Ks": // Specular
objMaterial.Specular = ParseMaterialColor(objMaterial, commandTokens);
break;
case "Tf": // Transmission Filter
break;
case "illum": // Illumination model
break;
case "d": // Dissolve factor
break;
case "Ns": // Specular exponent
objMaterial.SpecularExponent = Single.Parse(commandTokens[0]);
break;
case "sharpness": // Reflection sharpness
break;
case "Ni": // Index of refrection
break;
case "map_Ka":
objMaterial.AmbientTexture = ParseMaterialTexture(objContext, objMaterial, commandTokens);
break;
case "map_Kd":
objMaterial.DiffuseTexture = ParseMaterialTexture(objContext, objMaterial, commandTokens);
break;
case "map_Ks":
objMaterial.SpecularTexture = ParseMaterialTexture(objContext, objMaterial, commandTokens);
break;
case "map_d":
case "map_Ns":
case "map_aat":
case "decal":
case "disp":
case "bump":
case "refl":
default:
// Ignore
break;
// Custom
case "map_n":
objMaterial.NormalTexture = ParseMaterialTexture(objContext, objMaterial, commandTokens);
break;
}
}
// Collect material
objContext.Materials.Add(objMaterial.Name, objMaterial);
}
private static string MeshToString(MeshFilter mf, Dictionary <string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.renderer.sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
{
var __array1 = m.vertices;
var __arrayLength1 = __array1.Length;
for (int __i1 = 0; __i1 < __arrayLength1; ++__i1)
{
var lv = (Vector3)__array1[__i1];
{
Vector3 wv = mf.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
}
}
sb.Append("\n");
{
var __array2 = m.normals;
var __arrayLength2 = __array2.Length;
for (int __i2 = 0; __i2 < __arrayLength2; ++__i2)
{
var lv = (Vector3)__array2[__i2];
{
Vector3 wv = mf.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
}
}
sb.Append("\n");
{
var __array3 = m.uv;
var __arrayLength3 = __array3.Length;
for (int __i3 = 0; __i3 < __arrayLength3; ++__i3)
{
var v = (Vector3)__array3[__i3];
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
}
}
for (int material = 0; material < m.subMeshCount; material++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
sb.Append("usemap ").Append(mats[material].name).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
{
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
}
else
{
objMaterial.textureName = null;
}
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private static string MeshToString(MeshFilter mf, Dictionary <string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.GetComponent <Renderer>().sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
try {
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = mf.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
}
catch (Exception e)
{
Debug.LogError("mf name____" + mf.gameObject.name);
}
foreach (Vector3 lv in m.normals)
{
Vector3 wv = mf.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int material = 0; material < m.subMeshCount; material++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
sb.Append("usemap ").Append(mats[material].name).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
{
objMaterial.textureName = EditorUtility.GetAssetPath(mats[material].mainTexture);
}
else
{
objMaterial.textureName = null;
}
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private static string SkinnedMeshToString(SkinnedMeshRenderer skRenderer, Dictionary <string, ObjMaterial> materialList)
{
Mesh mTemp = skRenderer.sharedMesh;
Vector3[] vertices = new Vector3[mTemp.vertexCount];
Vector3[] normals = new Vector3[mTemp.vertexCount];
Matrix4x4[] boneMatrices = new Matrix4x4[skRenderer.bones.Length];
for (int i = 0; i < boneMatrices.Length; i++)
{
boneMatrices[i] = skRenderer.bones[i].localToWorldMatrix * mTemp.bindposes[i];
}
for (int i = 0; i < mTemp.vertexCount; i++)
{
BoneWeight weight = mTemp.boneWeights[i];
Matrix4x4 bm0 = boneMatrices[weight.boneIndex0];
Matrix4x4 bm1 = boneMatrices[weight.boneIndex1];
Matrix4x4 bm2 = boneMatrices[weight.boneIndex2];
Matrix4x4 bm3 = boneMatrices[weight.boneIndex3];
Matrix4x4 vertexMatrix = new Matrix4x4();
vertexMatrix = Matrix4x4.identity;
for (int n = 0; n < 16; n++)
{
vertexMatrix[n] =
bm0[n] * weight.weight0 +
bm1[n] * weight.weight1 +
bm2[n] * weight.weight2 +
bm3[n] * weight.weight3;
}
/*
* Vector3 pos0 = bm0.MultiplyPoint(mTemp.vertices[i]);
* Vector3 pos1 = bm1.MultiplyPoint(mTemp.vertices[i]);
* Vector3 pos2 = bm2.MultiplyPoint(mTemp.vertices[i]);
* Vector3 pos3 = bm3.MultiplyPoint(mTemp.vertices[i]);
*
* Vector3 pos = pos0 * weight.weight0 + pos1 * weight.weight1 + pos2 * weight.weight2 + pos3 * weight.weight3;
*
* vertices[i] = pos;
*/
vertices[i] = vertexMatrix.MultiplyPoint(mTemp.vertices[i]);
normals[i] = vertexMatrix.MultiplyVector(mTemp.normals[i]);
}
Mesh m = new Mesh();
m.vertices = vertices;
m.normals = normals;
m.uv = mTemp.uv;
m.triangles = mTemp.triangles;
m.subMeshCount = mTemp.subMeshCount;
m.RecalculateBounds();
m.RecalculateNormals();
Material[] mats = skRenderer.renderer.sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(skRenderer.gameObject.name).Append("\n");
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = skRenderer.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 lv in m.normals)
{
Vector3 wv = skRenderer.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int material = 0; material < m.subMeshCount; material++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
sb.Append("usemap ").Append(mats[material].name).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
{
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
}
else
{
objMaterial.textureName = null;
}
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
private void ProcessLine(string line, string folderPath)
{
string[] parts = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length > 0)
{
switch (parts[0])
{
case "mtllib":
Material = ProcessMaterial(parts[1], folderPath);
break;
case "v":
Vector3 vertex = ProcessVertex(parts);
Vertices.Add(vertex);
break;
case "vt":
Vector2 texCoord = ProcessTextureCoordinate(parts);
TexCoords.Add(texCoord);
break;
case "vn":
Vector3 normal = ProcessVertex(parts);
Normals.Add(normal);
break;
case "f":
ObjFace face = ProcessFace(parts);
Faces.Add(face);
break;
}
}
}
public BaseRenderMesh()
{
Id = Guid.NewGuid();
Material = new ObjMaterial(Id.ToString().Replace("-", ""));
}
private static string MeshToString(MeshFilter mf, Dictionary<string, ObjMaterial> materialList)
{
Mesh m = mf.sharedMesh;
Material[] mats = mf.renderer.sharedMaterials;
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mf.name).Append("\n");
foreach(Vector3 lv in m.vertices)
{
Vector3 wv = mf.transform.TransformPoint(lv);
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n",-wv.x,wv.y,wv.z));
}
sb.Append("\n");
foreach(Vector3 lv in m.normals)
{
Vector3 wv = mf.transform.TransformDirection(lv);
sb.Append(string.Format("vn {0} {1} {2}\n",-wv.x,wv.y,wv.z));
}
sb.Append("\n");
foreach(Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n",v.x,v.y));
}
for (int material=0; material < m.subMeshCount; material ++) {
sb.Append("\n");
sb.Append("usemtl ").Append(mats[material].name).Append("\n");
sb.Append("usemap ").Append(mats[material].name).Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = mats[material].name;
if (mats[material].mainTexture)
objMaterial.textureName = AssetDatabase.GetAssetPath(mats[material].mainTexture);
else
objMaterial.textureName = null;
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i=0;i<triangles.Length;i+=3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i]+1 + vertexOffset, triangles[i+1]+1 + normalOffset, triangles[i+2]+1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return sb.ToString();
}
private static string MeshToStringNoFilter(Mesh m, Dictionary <string, ObjMaterial> materialList)
{
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append("navmesh").Append("\n");
foreach (Vector3 lv in m.vertices)
{
Vector3 wv = lv;
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 lv in m.normals)
{
Vector3 wv = lv;
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in m.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int material = 0; material < m.subMeshCount; material++)
{
sb.Append("\n");
sb.Append("usemtl ").Append("Default-Material").Append("\n");
sb.Append("usemap ").Append("Default-Material").Append("\n");
//See if this material is already in the materiallist.
try
{
ObjMaterial objMaterial = new ObjMaterial();
objMaterial.name = "Default-Material";
objMaterial.textureName = null;
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
}
int[] triangles = m.GetTriangles(material);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += m.vertices.Length;
normalOffset += m.normals.Length;
uvOffset += m.uv.Length;
return(sb.ToString());
}
