public void WriteToOBJ(TextWriter writer, int lodNumber, int firstVertexNumber, int firstNormalNumber, int firstCoordNumber,
Dictionary <string, int?> materialNames, Stream unknownData)
{
unknownData.Write(unknown);
unknownData.WriteByte(unknown2);
unknownData.WriteByte(unknown3);
double scaleFactor = ConvertScale(Scale);
writer.WriteLine($"g lod{lodNumber}/scale={scaleFactor}");
writer.WriteLine("# vertices");
Vertices.ForEach(vertex => vertex.WriteToOBJ(writer, scaleFactor));
writer.WriteLine("# normals");
Normals.ForEach(normal => normal.WriteToOBJ(writer));
List <UVCoordinate> coords = GetAllUVCoords();
writer.WriteLine("# UV coords");
coords.ForEach(coord => coord.WriteToOBJ(writer));
writer.WriteLine("# triangles");
Triangles.ForEach(polygon => polygon.WriteToOBJ(writer, false, Vertices, Normals, firstVertexNumber, firstNormalNumber, materialNames));
writer.WriteLine("# quads");
Quads.ForEach(polygon => polygon.WriteToOBJ(writer, true, Vertices, Normals, firstVertexNumber, firstNormalNumber, materialNames));
writer.WriteLine("# UV triangles");
UVTriangles.ForEach(polygon => polygon.WriteToOBJ(writer, false, Vertices, Normals, firstVertexNumber, firstNormalNumber, coords, firstCoordNumber, materialNames));
writer.WriteLine("# UV quads");
UVQuads.ForEach(polygon => polygon.WriteToOBJ(writer, true, Vertices, Normals, firstVertexNumber, firstNormalNumber, coords, firstCoordNumber, materialNames));
}
public List <UVCoordinate> GetAllUVCoords() =>
UVTriangles.SelectMany(polygon => new UVCoordinate[] { polygon.Vertex0UV, polygon.Vertex1UV, polygon.Vertex2UV })
.Concat(UVQuads.SelectMany(polygon => new UVCoordinate[] { polygon.Vertex0UV, polygon.Vertex1UV, polygon.Vertex2UV, polygon.Vertex3UV })).ToList();
