public RawModel(int _vaoID, int _vertexCount, List <int> _vboIDs, LoaderVertex data, string modelName)
{
vaoID = _vaoID;
vertexCount = _vertexCount;
vboIDs = _vboIDs;
modelData = data;
rawModelName = modelName;
}
public static RawModel LoadToVAO(LoaderVertex vertexData, string vertexName)
{
if (rawModelTable.TryGetValue(vertexName, out var rawModel))
{
return(rawModel);
}
int vaoID = CreateVAO();
List <int> vboIDs = new List <int>();
BindIndicesBuffer(vertexData.indices);
vboIDs.Add(FloatsToAttribute(0, 3, vertexData.positions));
vboIDs.Add(FloatsToAttribute(1, 2, vertexData.textureCoords));
vboIDs.Add(FloatsToAttribute(2, 3, vertexData.normals));
UnbindVAO();
var model = new RawModel(vaoID, vertexData.indices.Length, vboIDs, vertexData, vertexName);
rawModelTable.Add(vertexName, model);
return(model);
}
public static LoaderVertex LoadOBJModel(string fileName)
{
LoaderVertex model = null;
if (table.Count != 0)
{
if (fileName == null)
{
table.TryGetValue("default_model", out model);
}
else
{
table.TryGetValue(fileName, out model);
}
}
if (model == null)
{
try
{
if (fileName == null)
{
table.Add("default_model", Geometry.GetVertex(Geometries.Cube));
return(Geometry.GetVertex(Geometries.Cube));
}
var reader = new StringReader(Resources.GetFile(fileName));
var line = "Start";
List <Vertex> vertices = new List <Vertex>();
List <Vector2> textureCoords = new List <Vector2>();
List <Vector3> normals = new List <Vector3>();
List <int> indices = new List <int>();
while (reader.Peek() != -1)
{
if (line != null && line.Length != 0)
{
if (line.Contains(" "))
{
line = line.Replace(" ", " ");
}
string[] currentLine = line.Split(" ");
if (line.StartsWith("v "))
{
Vector3 vertex = new Vector3(float.Parse(currentLine[1], CultureInfo.InvariantCulture.NumberFormat), float.Parse(currentLine[2], CultureInfo.InvariantCulture.NumberFormat), float.Parse(currentLine[3], CultureInfo.InvariantCulture.NumberFormat));
Vertex newVertex = new Vertex(vertices.Count, vertex);
vertices.Add(newVertex);
}
else if (line.StartsWith("vt "))
{
Vector2 textureCoord = new Vector2(float.Parse(currentLine[1], CultureInfo.InvariantCulture.NumberFormat), float.Parse(currentLine[2], CultureInfo.InvariantCulture.NumberFormat));
textureCoords.Add(textureCoord);
}
else if (line.StartsWith("vn "))
{
Vector3 normal = new Vector3(float.Parse(currentLine[1], CultureInfo.InvariantCulture.NumberFormat), float.Parse(currentLine[2], CultureInfo.InvariantCulture.NumberFormat), float.Parse(currentLine[3], CultureInfo.InvariantCulture.NumberFormat));
normals.Add(normal);
}
}
line = reader.ReadLine();
}
reader = new StringReader(Resources.GetFile(fileName));
while (reader.Peek() != -1)
{
if (line != null && line.Length != 0)
{
if (line.Contains(" "))
{
line = line.Replace(" ", " ");
}
if (line.StartsWith("f "))
{
string[] currentLine = line.Split(" ");
string[] vertex1 = currentLine[1].Split("/");
string[] vertex2 = currentLine[2].Split("/");
string[] vertex3 = currentLine[3].Split("/");
ProcessVertex(vertex1, vertices, indices);
ProcessVertex(vertex2, vertices, indices);
ProcessVertex(vertex3, vertices, indices);
}
}
line = reader.ReadLine();
}
reader.Close();
RemoveUnusedVertices(vertices);
float[] verticesArray = new float[vertices.Count * 3];
float[] textureCoordsArray = new float[vertices.Count * 2];
float[] normalsArray = new float[vertices.Count * 3];
float furthest = ConvertDataToArrays(vertices, textureCoords, normals, verticesArray, textureCoordsArray, normalsArray);
int[] indicesArray = ConvertIndicesListToArray(indices);
int vertexPointer = 0;
foreach (Vertex vertex in vertices)
{
verticesArray[vertexPointer++] = vertex.position.X;
verticesArray[vertexPointer++] = vertex.position.Y;
verticesArray[vertexPointer++] = vertex.position.Z;
}
for (int i = 0; i < indices.Count; i++)
{
indicesArray[i] = indices[i];
}
LoaderVertex data = new LoaderVertex(verticesArray, textureCoordsArray, normalsArray, indicesArray, furthest);
table.Add(fileName, data);
return(data);
}
catch (FileNotFoundException e)
{
Console.WriteLine(e.Message);
return(Geometry.GetVertex(Geometries.Cube));
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(Geometry.GetVertex(Geometries.Cube));
}
}
else
{
return(model);
}
}