public void LoadFromAnotherObjVolume(ObjVolume vol)
{
foreach (var face in vol.faces)
{
this.faces.Add(face);
}
}
public static void LoadFromFile(string filename, ObjVolume obj)
{
try
{
using (StreamReader reader = new StreamReader(new FileStream(filename, FileMode.Open, FileAccess.Read)))
{
LoadFromString(reader.ReadToEnd(), obj);
}
}
catch (FileNotFoundException e)
{
Console.WriteLine("File not found: {0}", filename);
}
catch (Exception e)
{
Console.WriteLine("Error loading file: {0}", filename);
}
}
void loadResources()
{
// Load shaders from file
shaders.Add("default", new ShaderProgram("Shaders/vs.glsl", "Shaders/fs.glsl", true));
shaders.Add("textured", new ShaderProgram("Shaders/vs_tex.glsl", "Shaders/fs_tex.glsl", true));
shaders.Add("normal", new ShaderProgram("Shaders/vs_norm.glsl", "Shaders/fs_norm.glsl", true));
shaders.Add("lit", new ShaderProgram("Shaders/vs_lit.glsl", "Shaders/fs_lit.glsl", true));
shaders.Add("lit_multiple", new ShaderProgram("Shaders/vs_lit.glsl", "Shaders/fs_lit_multiple.glsl", true));
shaders.Add("lit_advanced", new ShaderProgram("Shaders/vs_lit.glsl", "Shaders/fs_lit_advanced.glsl", true));
shaders.Add("colorAdvanced", new ShaderProgram("Shaders/vs_colorAdvanced.glsl", "Shaders/fs_colorAdvanced.glsl", true));
loadMaterials("Materials/opentk.mtl");
loadMaterials("Materials/earth.mtl");
SpherObjVol = new ObjVolume();
ObjVolume.LoadFromFile("3DModels/sphere.obj", SpherObjVol);
loadedObjFiles.Add("SphereObj", SpherObjVol);
}
public static void LoadFromString(string obj, ObjVolume vol)
{
// Seperate lines from the file
List <String> lines = new List <string>(obj.Split('\n'));
// Lists to hold model data
List <Vector3> verts = new List <Vector3>();
List <Vector3> normals = new List <Vector3>();
List <Vector2> texs = new List <Vector2>();
List <Tuple <TempVertex, TempVertex, TempVertex> > faces = new List <Tuple <TempVertex, TempVertex, TempVertex> >();
// Base values
verts.Add(new Vector3());
texs.Add(new Vector2());
normals.Add(new Vector3());
int currentindice = 0;
// Read file line by line
foreach (String line in lines)
{
if (line.StartsWith("v ")) // Vertex definition
{
// Cut off beginning of line
String temp = line.Substring(2);
Vector3 vec = new Vector3();
if (temp.Trim().Count((char c) => c == ' ') == 2) // Check if there's enough elements for a vertex
{
String[] vertparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
// Attempt to parse each part of the vertice
bool success = float.TryParse(vertparts[0], out vec.X);
success |= float.TryParse(vertparts[1], out vec.Y);
success |= float.TryParse(vertparts[2], out vec.Z);
// If any of the parses failed, report the error
if (!success)
{
Console.WriteLine("Error parsing vertex: {0}", line);
}
}
else
{
Console.WriteLine("Error parsing vertex: {0}", line);
}
verts.Add(vec);
}
else if (line.StartsWith("vt ")) // Texture coordinate
{
// Cut off beginning of line
String temp = line.Substring(2);
Vector2 vec = new Vector2();
if (temp.Trim().Count((char c) => c == ' ') > 0) // Check if there's enough elements for a vertex
{
String[] texcoordparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
// Attempt to parse each part of the vertice
bool success = float.TryParse(texcoordparts[0], out vec.X);
success |= float.TryParse(texcoordparts[1], out vec.Y);
// If any of the parses failed, report the error
if (!success)
{
Console.WriteLine("Error parsing texture coordinate: {0}", line);
}
}
else
{
Console.WriteLine("Error parsing texture coordinate: {0}", line);
}
texs.Add(vec);
}
else if (line.StartsWith("vn ")) // Normal vector
{
// Cut off beginning of line
String temp = line.Substring(2);
Vector3 vec = new Vector3();
if (temp.Trim().Count((char c) => c == ' ') == 2) // Check if there's enough elements for a normal
{
String[] vertparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
// Attempt to parse each part of the vertice
bool success = float.TryParse(vertparts[0], out vec.X);
success |= float.TryParse(vertparts[1], out vec.Y);
success |= float.TryParse(vertparts[2], out vec.Z);
// If any of the parses failed, report the error
if (!success)
{
Console.WriteLine("Error parsing normal: {0}", line);
}
}
else
{
Console.WriteLine("Error parsing normal: {0}", line);
}
normals.Add(vec);
}
else if (line.StartsWith("f ")) // Face definition
{
// Cut off beginning of line
String temp = line.Substring(2);
Tuple <TempVertex, TempVertex, TempVertex> face = new Tuple <TempVertex, TempVertex, TempVertex>(new TempVertex(), new TempVertex(), new TempVertex());
if (temp.Trim().Count((char c) => c == ' ') == 2) // Check if there's enough elements for a face
{
String[] faceparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
int v1, v2, v3;
int t1, t2, t3;
int n1, n2, n3;
// Attempt to parse each part of the face
bool success = int.TryParse(faceparts[0].Split('/')[0], out v1);
success |= int.TryParse(faceparts[1].Split('/')[0], out v2);
success |= int.TryParse(faceparts[2].Split('/')[0], out v3);
if (faceparts[0].Count((char c) => c == '/') >= 2)
{
success |= int.TryParse(faceparts[0].Split('/')[1], out t1);
success |= int.TryParse(faceparts[1].Split('/')[1], out t2);
success |= int.TryParse(faceparts[2].Split('/')[1], out t3);
success |= int.TryParse(faceparts[0].Split('/')[2], out n1);
success |= int.TryParse(faceparts[1].Split('/')[2], out n2);
success |= int.TryParse(faceparts[2].Split('/')[2], out n3);
}
else
{
if (texs.Count > v1 && texs.Count > v2 && texs.Count > v3)
{
t1 = v1;
t2 = v2;
t3 = v3;
}
else
{
t1 = 0;
t2 = 0;
t3 = 0;
}
if (normals.Count > v1 && normals.Count > v2 && normals.Count > v3)
{
n1 = v1;
n2 = v2;
n3 = v3;
}
else
{
n1 = 0;
n2 = 0;
n3 = 0;
}
}
// If any of the parses failed, report the error
if (!success)
{
Console.WriteLine("Error parsing face: {0}", line);
}
else
{
TempVertex tv1 = new TempVertex(v1, n1, t1);
TempVertex tv2 = new TempVertex(v2, n2, t2);
TempVertex tv3 = new TempVertex(v3, n3, t3);
face = new Tuple <TempVertex, TempVertex, TempVertex>(tv1, tv2, tv3);
faces.Add(face);
}
}
else
{
Console.WriteLine("Error parsing face: {0}", line);
}
}
}
foreach (var face in faces)
{
FaceVertex v1 = new FaceVertex(verts[face.Item1.Vertex], normals[face.Item1.Normal], texs[face.Item1.Texcoord]);
FaceVertex v2 = new FaceVertex(verts[face.Item2.Vertex], normals[face.Item2.Normal], texs[face.Item2.Texcoord]);
FaceVertex v3 = new FaceVertex(verts[face.Item3.Vertex], normals[face.Item3.Normal], texs[face.Item3.Texcoord]);
vol.faces.Add(new Tuple <FaceVertex, FaceVertex, FaceVertex>(v1, v2, v3));
}
}