public BoundingBox(FVLMesh objeto)
{
posicionMundo = new Vector4(0.0f, 0.0f, 0.0f, 1.0f);
if (objeto.VertexList.Count() > 0)
{
maxX = objeto.VertexList.First().X;
maxZ = objeto.VertexList.First().Z;
minX = objeto.VertexList.First().X;
minZ = objeto.VertexList.First().Z;
foreach (Vector3 vertex in objeto.VertexList)
{
if (vertex.X > maxX)
{
maxX = vertex.X;
}
else if (vertex.X < minX)
{
minX = vertex.X;
}
if (vertex.Z > maxZ)
{
maxZ = vertex.Z;
}
else if (vertex.Z < minZ)
{
minZ = vertex.Z;
}
}
}
}
public static void parseTexCord(FVLMesh mesh, String[] args)
{
Vector2 texCord = new Vector2();
texCord.X = float.Parse(args[1], System.Globalization.NumberStyles.Float, new System.Globalization.CultureInfo("en-US"));
texCord.Y = float.Parse(args[2], System.Globalization.NumberStyles.Float, new System.Globalization.CultureInfo("en-US"));
mesh.AddTexCord(texCord);
}
public static void parseFace(FVLMesh mesh, string line)
{
FVLFace face = new FVLFace();
int i = 2; // componente 1 = f , comp 2 = ' '
String vertex;
String texCord;
String normal;
while (i < line.Length)
{
vertex = "";
texCord = "";
normal = "";
while (i < line.Length && line[i] != ' ' && line[i] != '/')
{
vertex = vertex + line[i];
i++;
}
if (i < line.Length && line[i] != ' ')
{
i++;
if (line[i] != '/')
{
while (i < line.Length && line[i] != ' ' && line[i] != '/')
{
texCord = texCord + line[i];
i++;
}
}
i++;
if (i < line.Length && line[i] != '/')
{
while (i < line.Length && line[i] != ' ' && line[i] != '/')
{
normal = normal + line[i];
i++;
}
}
}
i++;
face.AddVertex(Int32.Parse(vertex, NumberStyles.Integer) - 1);
if (!normal.Equals(""))
{
face.AddNormal(Int32.Parse(normal, NumberStyles.Integer) - 1);
}
if (!texCord.Equals(""))
{
face.AddTexCord(Int32.Parse(texCord, NumberStyles.Integer) - 1);
}
}
mesh.AddFace(face);
}
public static void parseNormal(FVLMesh mesh, String[] args)
{
Vector3 vertex = new Vector3();
vertex.X = float.Parse(args[1], System.Globalization.NumberStyles.Float, new System.Globalization.CultureInfo("en-US"));
vertex.Y = float.Parse(args[2], System.Globalization.NumberStyles.Float, new System.Globalization.CultureInfo("en-US"));
vertex.Z = float.Parse(args[3], System.Globalization.NumberStyles.Float, new System.Globalization.CultureInfo("en-US"));
mesh.AddVertexNormal(vertex);
}
public static FVLMesh parseFile(String fileName)
{
FVLMesh mesh = new FVLMesh();
String line;
String[] lineSplit;
String sender = "ObjFileParser.parseFile: ";
info(sender, "Opening file: {0}", fileName);
StreamReader file = new StreamReader(fileName);
info(sender, "OK. Reading all the lines of the file...");
line = file.ReadLine();
while (line != null)
{
line = line.Trim(); //Saco espacios en blanco.
if ((line.Length != 0) && (!line[0].Equals(COMMENT))) //Si no es comentario
{
lineSplit = line.Split(SEPARATORS, StringSplitOptions.RemoveEmptyEntries);
if (lineSplit[0].Equals(VERTEX))
{
parseVertex(mesh, lineSplit);
}
else if (lineSplit[0].Equals(NORMAL))
{
parseNormal(mesh, lineSplit);
}
else if (lineSplit[0].Equals(FACE))
{
parseFace(mesh, line);//HERE!!
}
else if (lineSplit[0].Equals(TEXCORD))
{
parseTexCord(mesh, lineSplit);
}
else
{
log(sender, "Not supported instruction: {0}", lineSplit[0]);
}
}
line = file.ReadLine();
}
file.Close();
info(sender, "FINISHED!");
return(mesh);
}
public static void parseMtl(FVLMesh mesh, String[] args, List <MatConTextura> listaMateriales)
{
MatConTextura material;
foreach (MatConTextura m in listaMateriales)
{
if (m.NombreMaterial.Equals(args[1]))
{
material = m;
mesh.Material = material;
break;
}
}
}
public static void parseVertex(FVLMesh mesh, String[] args, List <Vector3> vertexList)
{
String sender = "ObjFileParser.parseVertex: ";
Vector3 vertex = new Vector3();
switch (args.Length)
{
case 2:
log(sender, "Vertex definition must be (x,y,z [,w]). Found only x.");
vertex.X = float.Parse(args[1], System.Globalization.NumberStyles.Number);
vertex.Y = 0.0f;
vertex.Z = 0.0f;
//vertex.W = 1.0f;
break;
case 3:
log(sender, "Vertex definition must be (x,y,z [,w]). Found only x, y.");
vertex.X = float.Parse(args[1], CultureInfo.InvariantCulture);
vertex.Y = float.Parse(args[2], CultureInfo.InvariantCulture);
vertex.Z = 0.0f;
//vertex.W = 1.0f;
break;
case 4:
vertex.X = float.Parse(args[1], CultureInfo.InvariantCulture);
vertex.Y = float.Parse(args[2], CultureInfo.InvariantCulture);
vertex.Z = float.Parse(args[3], CultureInfo.InvariantCulture);
//vertex.W = 1.0f;
break;
case 5:
log(sender, "Found (x, y, z, w). Discarding w component.");
vertex.X = float.Parse(args[1], CultureInfo.InvariantCulture);
vertex.Y = float.Parse(args[2], CultureInfo.InvariantCulture);
vertex.Z = float.Parse(args[3], CultureInfo.InvariantCulture);
//vertex.W = float.Parse(args[4], System.Globalization.NumberStyles.Number);
break;
default:
break;
}
mesh.AddVertex(vertex);
vertexList.Add(vertex);
//vertexCount++;
}
public static List <FVLMesh> parseFile(String objFileName, String mtlFileName)
{
List <FVLMesh> listaMeshes = new List <FVLMesh>();
FVLMesh mesh = new FVLMesh();
//Lista de todos los f, v, vn y vt del obj
List <Vector3> vertexList = new List <Vector3>();
List <Vector2> texCordList = new List <Vector2>();
List <Vector3> vertexNormalList = new List <Vector3>();
//Parseo el archivo de materiales
List <MatConTextura> listaMateriales = MtlFileParser.parseFile(mtlFileName);
String line;
String[] lineSplit;
StreamReader file = new StreamReader(objFileName);
line = file.ReadLine();
while (line != null)
{
line = line.Trim(); //Saco espacios en blanco.
if ((line.Length != 0) && (!line[0].Equals(COMMENT))) //Si no es comentario
{
lineSplit = line.Split(SEPARATORS, StringSplitOptions.RemoveEmptyEntries);
if (lineSplit[0].Equals(VERTEX))
{
parseVertex(mesh, lineSplit, vertexList);
}
else if (lineSplit[0].Equals(NORMAL))
{
parseNormal(mesh, lineSplit, vertexNormalList);
}
else if (lineSplit[0].Equals(FACE))
{
parseFace(mesh, line);//HERE!!
}
else if (lineSplit[0].Equals(TEXCORD))
{
parseTexCord(mesh, lineSplit, texCordList);
}
else if (lineSplit[0].Equals(USEMTL))
{
parseMtl(mesh, lineSplit, listaMateriales);
}
else if (lineSplit[0].Equals(O))
{
mesh = new FVLMesh();
mesh.NombreObjeto = lineSplit[1];
//Agrego todos los v, vn y vt a la lista del subobjeto (para que no se desacomoden los indices en el build)
foreach (Vector3 vertex in vertexList)
{
mesh.AddVertex(vertex);
}
foreach (Vector3 vertexNormal in vertexNormalList)
{
mesh.AddVertexNormal(vertexNormal);
}
foreach (Vector2 texCoord in texCordList)
{
mesh.AddTexCord(texCoord);
}
listaMeshes.Add(mesh);
}
}
line = file.ReadLine();
}
file.Close();
return(listaMeshes);
}
