public static Solids.Solid LoadObj(string pathToFolder, string fileName, Vector3 pos)
{
Material mat = null;
VertexBuffer vb = new VertexBuffer();
MaterialBuffer materialBuffer = null;
List <Face3> faces = new List <Face3>();
string[] lines = File.ReadAllLines(pathToFolder + "/" + fileName);
foreach (string line in lines)
{
string[] split = line.Split(' ');
switch (split[0])
{
case "v":
vb.vertices.Add(new Vector3(float.Parse(split[1], CultureInfo.InvariantCulture), float.Parse(split[2], CultureInfo.InvariantCulture), float.Parse(split[3], CultureInfo.InvariantCulture)));
break;
case "vt":
vb.textures.Add(new Vector2(float.Parse(split[1], CultureInfo.InvariantCulture), float.Parse(split[2], CultureInfo.InvariantCulture)));
break;
case "vn":
vb.normals.Add(new Vector3(float.Parse(split[1], CultureInfo.InvariantCulture), float.Parse(split[2], CultureInfo.InvariantCulture), float.Parse(split[3], CultureInfo.InvariantCulture)));
break;
case "f":
Vector3[] faceVertices = new Vector3[split.Length - 1];
Vector2[] faceTextures = new Vector2[split.Length - 1];
Vector3[] faceNormals = new Vector3[split.Length - 1];
if (split[1].Contains("//"))
{
for (int i = 1; i < split.Length - 1; i++)
{
string[] index = split[i].Split(("//").ToCharArray());
faceVertices[i - 1] = vb.vertices[int.Parse(index[0]) - 1];
faceNormals[i - 1] = vb.normals[int.Parse(index[2]) - 1];
}
}
else
{
for (int i = 1; i < split.Length; i++)
{
string[] index = split[i].Split('/');
faceVertices[i - 1] = vb.vertices[int.Parse(index[0]) - 1];
if (index.Length > 0)
{
faceTextures[i - 1] = vb.textures[int.Parse(index[1]) - 1];
}
if (index.Length > 1)
{
faceNormals[i - 1] = vb.normals[int.Parse(index[2]) - 1];
}
}
}
faces.Add(new Face3(faceVertices, faceTextures, faceNormals, mat));
break;
case "mtllib":
materialBuffer = MtlLoader.LoadMaterial(pathToFolder, split[1]);
break;
case "usemtl":
if (materialBuffer != null)
{
mat = materialBuffer.materials.FirstOrDefault(t => t.name == split[1]);
}
break;
}
}
return(new Solids.Solid(faces.ToArray(), pos));
}
public static MaterialBuffer LoadMaterial(string path, string fileName)
{
MaterialBuffer materialBuffer = new MaterialBuffer();
Material tempMaterial = null;
List <float> materialParams = new List <float>();
string[] lines = File.ReadAllLines(path + "/" + fileName);
foreach (string line in lines)
{
string[] split = line.Split(' ');
materialParams = new List <float>();
for (int i = 1; i < split.Length; i++)
{
float val;
if (float.TryParse(split[i], NumberStyles.Float, CultureInfo.InvariantCulture, out val))
{
materialParams.Add(val);
}
}
switch (split[0])
{
case "newmtl":
tempMaterial = new Material(split[1]);
materialBuffer.Add(tempMaterial);
break;
case "Ka":
tempMaterial.Ka = materialParams.ToArray();
break;
case "Kd":
tempMaterial.Kd = materialParams.ToArray();
break;
case "Ks":
tempMaterial.Ks = materialParams.ToArray();
break;
case "d":
tempMaterial.d = materialParams.ToArray()[0];
break;
case "Tr":
tempMaterial.d = materialParams.ToArray()[0];
break;
case "s":
tempMaterial.d = materialParams.ToArray()[0];
break;
case "map_Kd":
tempMaterial.textureID = TextureLoader.LoadFromPath(path + "/" + split[1].Replace(@".\", ""));
break;
}
}
return(materialBuffer);
}
