public Object(Geometry geo, ShaderMaterial m, int x, int y, int z)
{
_mesh = geo.ToMesh();
_material = m;
_posX = x;
_posY = y;
_posZ = z;
_angX = .0f;
_angY = .0f;
_angY = .0f;
}
public void AddObject(Geometry geo, ShaderMaterial m, int posX, int posY, int posZ)
{
_objects.Add(new Object(geo, m, posX, posY, posZ));
}
/// <summary>
/// Initializes a new instance of the <see cref="Renderer"/> class.
/// </summary>
/// <param name="geo">The geo.</param>
/// <param name="shaderProgram">The shader program.</param>
public Renderer(Geometry geo, ShaderProgram shaderProgram)
{
mesh = geo.ToMesh();
material = new Material(shaderProgram);
}
/// <summary>
/// Initializes a new instance of the <see cref="Renderer"/> class.
/// </summary>
/// <param name="geo">The geometry information is parsed to a Mesh<see cref="Mesh"/> object upon initilization of Renderer.</param>
public Renderer(Geometry geo)
{
mesh = geo.ToMesh();
}
/// <summary>
/// Parses the contents of the TextReader object passed to the method and tries to
/// interpret the contents as a <a href="http://en.wikipedia.org/wiki/Wavefront_.obj_file">Wavefront obj</a> file.
/// Creates a Mesh object from the contents.
/// </summary>
/// <param name="tr">The initialized TextReader (can be either a StreamReader or a StringReader)</param>
/// <returns>The newly created Mesh object</returns>
public static Geometry ReadWavefrontObj(TextReader tr)
{
const int nMaxInx = 256;
var g = new Geometry();
int nFaceRefs = 0;
int lineNumber = 1;
//Read the first line of text
string line = tr.ReadLine();
//Continue to read until you reach end of file
while (line != null)
{
if (line.StartsWith("#"))
{
// Nothing to read, these are comments.
}
else if (line.StartsWith("vt"))
{
// Vertext texcoord.
string tmp = line.Substring(3);
string[] values = FilteredSplit(tmp, null);
g.AddTexCoord(new double2(Double_Parse(values[0]),
Double_Parse(values[1])));
}
else if (line.StartsWith("vn"))
{
// Normals
string tmp = line.Substring(3);
string[] values = FilteredSplit(tmp, null);
g.AddNormal(new double3(Double_Parse(values[0]),
Double_Parse(values[1]),
-Double_Parse(values[2]))); // convert to lefthanded
}
else if (line.StartsWith("v"))
{
// Positions.
string tmp = line.Substring(2);
string[] values = FilteredSplit(tmp, null);
g.AddVertex(new double3(Double_Parse(values[0]),
Double_Parse(values[1]),
-Double_Parse(values[2]))); // convert to lefthanded
}
else if (line.StartsWith("f"))
{
// Face
string tmp = line.Substring(2);
string[] values = FilteredSplit(tmp, null);
if (!(3 <= values.Length && values.Length < nMaxInx))
{
throw new ArgumentOutOfRangeException("Error reading obj file (" + lineNumber +
"). Face definition number of vertices must be within [3.." + nMaxInx + "].");
}
var vI = new int[values.Length];
int[] nI = null;
int[] tI = null;
int i = 0;
foreach (var vRef in values)
{
string[] vDef = vRef.Split('/');
if (nFaceRefs == 0)
{
if (!(1 <= vDef.Length && vDef.Length <= 3))
throw new ArgumentOutOfRangeException("Error reading obj file (" + lineNumber +
"). Face definitions must contain 1, 2 or 3 indices per vertex");
nFaceRefs = vDef.Length;
}
else
{
if (vDef.Length != nFaceRefs)
throw new ArgumentOutOfRangeException("Error reading obj file (" + lineNumber +
"). Inconsistent face definitions");
}
vI[i] = int.Parse(vDef[0]) - 1;
if (vDef.Length > 1 && !String.IsNullOrEmpty(vDef[1]))
{
if (tI == null)
tI = new int[values.Length];
tI[i] = int.Parse(vDef[1]) - 1;
}
if (vDef.Length > 2)
{
if (String.IsNullOrEmpty(vDef[1]))
throw new FormatException("Error reading obj file (" + lineNumber +
"). Syntax error in face definition");
if (nI == null)
nI = new int[values.Length];
nI[i] = int.Parse(vDef[2]) - 1;
}
i++;
}
g.AddFace(vI, tI, nI);
}
else if (line.StartsWith("mtllib"))
{
/* TODO;
mtlFile = line.Substring(7);
// Then load it now so that we have our materials ready
LoadMtl(d3ddevice, mtlFile);
* */
}
else if (line.StartsWith("usemtl"))
{
/* TODO:
bool found = false;
string matName = line.Substring(7);
for (int i = 0; i < materials.Count; i++)
{
if (matName.Equals(materials.name))
{
found = true;
currSubset = i;
}
}
if (!found)
{
throw new Exception("Materials are already loaded so we should have it!");
}*/
}
//Read the next line
line = tr.ReadLine();
lineNumber++;
}
if (!g.HasNormals)
g.CreateNormals(80*3.141592/180.0);
return g;
}
