public static void Parse(string fileName)
{
WavefrontObj obj = new WavefrontObj();
using (StreamReader fs = new StreamReader(fileName))
{
int lineNumber = 0;
while (!fs.EndOfStream)
{
lineNumber++;
string line = fs.ReadLine();
if ((line.Length <= 0) || (line[0] == '#'))
{
continue;
}
string[] parts = line.Split(new[] { ' ' });
switch (parts[0])
{
case "v":
if (parts.Length != 4)
{
throw new ApplicationException(string.Format("Bad vertex vector size at line: {0}", lineNumber));
}
obj.vertices.Add(ParseVector3(parts[1], parts[2], parts[3]));
break;
case "vn":
if (parts.Length != 4)
{
throw new ApplicationException(string.Format("Bad normal vector size at line: {0}", lineNumber));
}
Vector3 normal = ParseVector3(parts[1], parts[2], parts[3]);
normal.Normalize();
obj.normals.Add(normal);
break;
case "vt":
if (parts.Length != 3)
{
throw new ApplicationException(string.Format("Bad texture coordinates vector size at line: {0}", lineNumber));
}
obj.texCoords.Add(ParseVector2(parts[1], parts[2]));
break;
case "f":
if (parts.Length != 4)
{
throw new ApplicationException(string.Format("Face being not a triangle at line: {0}", lineNumber));
}
int[] vertexIndices = new int[3];
for (int i = 0; i < 3; i++)
{
obj.faces.Add(uint.Parse(parts[i + 1]) - 1);
}
break;
default:
break;
}
}
}
}
public static void Parse(string fileName)
{
WavefrontObj obj = new WavefrontObj();
using (StreamReader fs = new StreamReader(fileName))
{
int lineNumber = 0;
while (!fs.EndOfStream)
{
lineNumber++;
string line = fs.ReadLine();
if ((line.Length <= 0) || (line[0] == '#'))
{
continue;
}
string[] parts = line.Split(new[] { ' ' });
switch (parts[0])
{
case "v":
if (parts.Length != 4)
{
throw new ApplicationException(string.Format("Bad vertex vector size at line: {0}", lineNumber));
}
obj.vertices.Add(ParseVector3(parts[1], parts[2], parts[3]));
break;
case "vn":
if (parts.Length != 4)
{
throw new ApplicationException(string.Format("Bad normal vector size at line: {0}", lineNumber));
}
Vector3 normal = ParseVector3(parts[1], parts[2], parts[3]);
normal.Normalize();
obj.normals.Add(normal);
break;
case "vt":
if (parts.Length != 3)
{
throw new ApplicationException(string.Format("Bad texture coordinates vector size at line: {0}", lineNumber));
}
obj.texCoords.Add(ParseVector2(parts[1], parts[2]));
break;
case "f":
if (parts.Length != 4)
{
throw new ApplicationException(string.Format("Face being not a triangle at line: {0}", lineNumber));
}
int[] vertexIndices = new int[3];
for (int i = 0; i < 3; i++)
{
obj.faces.Add(uint.Parse(parts[i + 1]) - 1);
}
break;
default:
break;
}
}
}
}
