private void ExpandTextureVertices()
{
if (facesTextureCoords.Count != 0)
{
foreach (int index in facesTextureCoords)
{
Vector3 vector = textureIndices[index];
TextureCoords.Add(new Vector3(vector.X, vector.Y, vector.Z));
}
}
else
{
//Generate same for all
for (int i = 0; i < Faces.Count; i++)
{
TextureCoords.Add(new Vector3(1, 1, 0));
}
}
}
public void ParseObj(StreamReader data)
{
string parse = string.Empty;
WtGroup CurrentGroup = null;
while ((parse = data.ReadLine()) != null)
{
int castword = WordsParser.WordIndex(ref parse, 0);
if (WordsParser.WordCmp(ref parse, castword, WordsParser.WordLen(ref parse, castword), ref Usemtl, 0, 6))
{
WtGroup gp = new WtGroup();
CurrentGroup = gp;
Groups.Add(CurrentGroup);
castword = WordsParser.WordNext(ref parse, castword);
CurrentGroup.Material = _getMaterialFromName(WordsParser.WordStringValue(ref parse, castword));
continue;
}
if (WordsParser.WordCmp(ref parse, castword, WordsParser.WordLen(ref parse, castword), ref F, 0, 1))
{
WtFace v;
castword = WordsParser.WordNext(ref parse, castword);
v.V0 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.VT0 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.VN0 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.V1 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.VT1 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.VN1 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.V2 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.VT2 = WordsParser.WordIntValue(ref parse, castword) - 1;
castword = WordsParser.WordNext(ref parse, castword);
v.VN2 = WordsParser.WordIntValue(ref parse, castword) - 1;
//Console.WriteLine("f {0}/{1}/{2} {3}/{4}/{5} {6}/{7}/{8}", v.V0, v.VN0, v.VT0, v.V1, v.VN1,v.VT1, v.V2, v.VN2, v.VT2);
CurrentGroup.Faces.Add(v);
continue;
}
if (WordsParser.WordCmp(ref parse, castword, WordsParser.WordLen(ref parse, castword), ref Vn, 0, 2))
{
WtVector3 v;
castword = WordsParser.WordNext(ref parse, castword);
v.X = WordsParser.WordFloatValue(ref parse, castword);
castword = WordsParser.WordNext(ref parse, castword);
v.Y = WordsParser.WordFloatValue(ref parse, castword);
castword = WordsParser.WordNext(ref parse, castword);
v.Z = WordsParser.WordFloatValue(ref parse, castword);
//Console.WriteLine("VN {0}, {1}, {2}", v.X, v.Y, v.Z);
Normals.Add(v);
continue;
}
if (WordsParser.WordCmp(ref parse, castword, WordsParser.WordLen(ref parse, castword), ref Vt, 0, 2))
{
WtVector2 v;
castword = WordsParser.WordNext(ref parse, castword);
v.X = WordsParser.WordFloatValue(ref parse, castword);
castword = WordsParser.WordNext(ref parse, castword);
v.Y = WordsParser.WordFloatValue(ref parse, castword);
//Console.WriteLine("VT {0}, {1}", v.X, v.Y);
TextureCoords.Add(v);
continue;
}
if (WordsParser.WordCmp(ref parse, castword, WordsParser.WordLen(ref parse, castword), ref V, 0, 1))
{
WtVector3 v;
castword = WordsParser.WordNext(ref parse, castword);
v.X = WordsParser.WordFloatValue(ref parse, castword);
castword = WordsParser.WordNext(ref parse, castword);
v.Y = WordsParser.WordFloatValue(ref parse, castword);
castword = WordsParser.WordNext(ref parse, castword);
v.Z = WordsParser.WordFloatValue(ref parse, castword);
//Console.WriteLine("V {0}, {1}, {2}",v.X,v.Y, v.Z);
Vertexes.Add(v);
continue;
}
}
}
/// <summary>
///
/// </summary>
private void LoadFromFile(string objFilename)
{
Filename = objFilename;
// TODO read material file *.mtl
var lines = File.ReadAllLines(objFilename);
var timer = new HighPerformanceTimer();
timer.Start();
var min = new Vector3(float.MaxValue);
var max = new Vector3(float.MinValue);
for (var i = 0; i < lines.Length; i++)
{
var line = lines[i];
try
{
if (line.StartsWith("# object"))
{
if (string.IsNullOrEmpty(Name))
{
Name = line.Substring("# object ".Length);
}
}
// vertex
else if (line.StartsWith("v "))
{
var parts = line.Substring("v ".Length).Replace('.', ',').Split(' ');
var vertex = new Vector3(float.Parse(parts[0], System.Globalization.NumberStyles.Float), float.Parse(parts[1]), float.Parse(parts[2]));
if (vertex.X < min.X)
{
min.X = vertex.X;
}
if (vertex.Y < min.Y)
{
min.Y = vertex.Y;
}
if (vertex.Z < min.Z)
{
min.Z = vertex.Z;
}
if (vertex.X > max.X)
{
max.X = vertex.X;
}
if (vertex.Y > max.Y)
{
max.Y = vertex.Y;
}
if (vertex.Z > max.Z)
{
max.Z = vertex.Z;
}
Vertices.Add(vertex);
}
// vertex normal
else if (line.StartsWith("vn "))
{
var parts = line.Substring("vn ".Length).Replace('.', ',').Split(' ');
Normals.Add(new Vector3(float.Parse(parts[0]), float.Parse(parts[1]), float.Parse(parts[2])));
}
// vertex texture coordinates
else if (line.StartsWith("vt "))
{
var parts = line.Substring("vt ".Length).Replace('.', ',').Split(' ');
TextureCoords.Add(new Vector2(float.Parse(parts[0]), float.Parse(parts[1])));
}
// face indices
else if (line.StartsWith("f "))
{
var parts = line.Substring("f ".Length).Split(' ');
var v1Parts = parts[0].Split('/');
var v2Parts = parts[1].Split('/');
var v3Parts = parts[2].Split('/');
Faces.Add(
new Face(
this,
int.Parse(v1Parts[0]) - 1, int.Parse(v2Parts[0]) - 1, int.Parse(v3Parts[0]) - 1,
int.Parse(v1Parts[1]) - 1, int.Parse(v2Parts[1]) - 1, int.Parse(v3Parts[1]) - 1,
int.Parse(v1Parts[2]) - 1, int.Parse(v2Parts[2]) - 1, int.Parse(v3Parts[2]) - 1
)
);
}
}
catch (Exception ex)
{
throw new Exception(string.Format("ObjImporter failed at line='{0}'", line), ex);
}
}
BoundingBox = new AACell {
Min = min, Max = max
};
timer.Stop();
Log.Instance.AddMsg(LogLevel.Info, string.Format("WavefrontObjMesh '{0}' [vertices: {1}; faces: {2}; size: {3}] loaded in {4}", Name, Vertices.Count, Faces.Count, BoundingBox.Size.ToString(), FormatString.GetDuration((int)timer.Duration)));
}