public static VertexFloatBuffer loadModel(string modelname, VertexFormat format)
{
var objLoaderFactory = new ObjLoaderFactory();
var objLoader = objLoaderFactory.Create(new MaterialNullStreamProvider());
var fileStream = new FileStream("resources/model/" + modelname + "/" + modelname + ".obj", FileMode.Open);
var result = objLoader.Load(fileStream);
fileStream.Close();
IList <Mesh> meshes = new OBJToMeshConverter().Convert(result);
VertexFloatBuffer buffer = new VertexFloatBuffer(format);
foreach (var mesh in meshes)
{
List <float[]> vertices = new List <float[]>();
List <uint> indices = new List <uint>();
for (int i = 0; i < mesh.Triangles.Count; i++)
{
float[] newVertex;
if (format.Equals(VertexFormat.XYZ_NORMAL_UV))
{
newVertex = new float[] { mesh.Triangles[i].X, mesh.Triangles[i].Y, mesh.Triangles[i].Z, mesh.Normals[i].X, mesh.Normals[i].Y, mesh.Normals[i].Z, mesh.UV[i].X, mesh.UV[i].Y };
}
else if (format.Equals(VertexFormat.XYZ))
{
newVertex = new float[] { mesh.Triangles[i].X, mesh.Triangles[i].Y, mesh.Triangles[i].Z };
}
else if (format.Equals(VertexFormat.XYZ_UV))
{
newVertex = new float[] { mesh.Triangles[i].X, mesh.Triangles[i].Y, mesh.Triangles[i].Z, mesh.UV[i].X, mesh.UV[i].Y };
}
else
{
newVertex = new float[] { };
}
bool exists = false;
for (uint j = 0; j < vertices.Count; j++)
{
if (vertices[(int)j].SequenceEqual(newVertex))
{
indices.Add(j);
exists = true;
}
}
if (!exists)
{
vertices.Add(newVertex);
indices.Add((uint)vertices.Count - 1);
}
}
float[] vertexData = new float[vertices.Count * vertices[0].Length];
int k = 0;
foreach (var data in vertices)
{
for (int j = 0; j < data.Length; j++)
{
vertexData[k++] = data[j];
}
}
buffer.Set(vertexData, indices.ToArray());
buffer.Load();
}
return(buffer);
}