public WavefrontObject LoadFromFile(string filename)
{
_logger.Debug("Loading Obj file from {0}", filename);
using var file = File.OpenText(filename);
var vertices = new List <Vector3>();
var normals = new List <Vector3>();
var textures = new List <Vector2>();
var faces = new List <Face>();
while (TryParse(file, out var objLine))
{
switch (objLine.Type)
{
case ObjTypes.Vertex: vertices.Add(_vertexParser.Parse(objLine.Value)); break;
case ObjTypes.Normal: normals.Add(_normalParser.Parse(objLine.Value)); break;
case ObjTypes.Texture: textures.Add(_textureParser.Parse(objLine.Value)); break;
case ObjTypes.Face: faces.Add(new Face(_faceParser.Parse(objLine.Value))); break;
//TODO: Add support for Objects, Groups, Materials, Lights
default:
_logger.Debug("Unknown type: {0} value: {1}", objLine.Type, objLine.Value);
break;
}
}
_logger.Debug("Finished loading model. Vertices: {0}, Textures: {1}, Normals: {2}, Faces: {3}", vertices.Count, textures.Count, normals.Count, faces.Count);
return(new WavefrontObject(vertices.ToArray(), normals.ToArray(), textures.ToArray(), faces.ToArray()));
}
private void ParseVertices(LineReader lineReader)
{
byte[] buffer = new byte[_dataStore.Header.Size.Length * sizeof(float)];
for (int i = 0; i < _dataStore.Header.Points; i++)
{
if (lineReader.Read(buffer, 0, buffer.Length) != buffer.Length)
{
throw new IOException();
}
_vertexParser.Parse(buffer);
}
}