private void ConvertFace(IWavefrontObj wavefrontObj, Face face, Mesh mesh)
{
var points = new List<Vector3>();
var verticesCount = wavefrontObj.Vertices.Count;
for (var i = 0; i < face.Count; i++)
{
var faceVertex = face[i];
var actualVertexIndex = 0;
if (faceVertex.VertexIndex > 0)
{
actualVertexIndex = faceVertex.VertexIndex - 1;
}
else if (faceVertex.VertexIndex < 0)
{
actualVertexIndex = verticesCount + faceVertex.VertexIndex;
}
else
{
throw new InvalidDataException("Obj model contains a vertex index of 0.");
}
var geoVertex = wavefrontObj.Vertices[actualVertexIndex];
var point = new Vector3(geoVertex.X, geoVertex.Y, geoVertex.Z);
points.Add(point);
}
var polygon = new Polygon(points);
mesh.Faces.Add(polygon);
}
public override void Parse(string line)
{
var vertices = line.Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);
var face = new Face();
foreach (var vertexString in vertices)
{
var faceVertex = ParseFaceVertex(vertexString);
face.AddVertex(faceVertex);
}
_faceGroup.AddFace(face);
}
public void AddFace(Face face)
{
PushGroupIfNeeded();
_currentGroup.AddFace(face);
}
public void AddFace(Face face)
{
_faces.Add(face);
}
