public List<Pass.PassData> PaserObj(string objName)
{
List<Pass.PassData> datalist = new List<Pass.PassData>();
Dictionary<string, Material> matDic = new Dictionary<string,Material>();
foreach (string line in System.IO.File.ReadAllLines(objName))
{
if (line.StartsWith("mtllib"))
{
string matLibName = line.Substring(7);
matDic = parseMat("media/" + matLibName);
}
else if (line.StartsWith("vt"))
{
string[] tempAry = line.Split(new char[1] { ' ' });
tempAry = Array.FindAll<string>(tempAry, x =>
{
float temp;
return float.TryParse(x, out temp);
});
SlimDX.Vector2 uv = new SlimDX.Vector2();
uv.X = System.Convert.ToSingle(tempAry[0]);
uv.Y = 1.0f - System.Convert.ToSingle(tempAry[1]);
uvList.Add(uv);
}
else if (line.StartsWith("vn"))
{
string[] tempAry = line.Split(new char[1] { ' ' });
tempAry = Array.FindAll<string>(tempAry, x =>
{
float temp;
return float.TryParse(x, out temp);
});
SlimDX.Vector4 normal = new SlimDX.Vector4();
normal.X = System.Convert.ToSingle(tempAry[0]);
normal.Y = System.Convert.ToSingle(tempAry[1]);
normal.Z = System.Convert.ToSingle(tempAry[2])-1.0f;
normalList.Add(normal);
}
else if (line.StartsWith("v"))
{
string[] tempAry = line.Split(new char[1] { ' ' });
tempAry = Array.FindAll<string>(tempAry, x =>
{
float temp;
return float.TryParse(x, out temp);
});
SlimDX.Vector4 pos = new SlimDX.Vector4();
pos.X = System.Convert.ToSingle(tempAry[0]);
pos.Y = System.Convert.ToSingle(tempAry[1]);
pos.Z = System.Convert.ToSingle(tempAry[2])*(-1.0f);
pos.W = 1.0f;
posList.Add(pos);
}
}
List<Vertex> vertexList = new List<Vertex>();
List<int[]> triangleIndexList = new List<int[]>();
Material m = null;
Pass.PassData data = null;
Dictionary<string, int> cache = new Dictionary<string, int>();
int dataCount = 0;
foreach (string line in System.IO.File.ReadAllLines(objName))
{
if (line.StartsWith("usemtl"))
{
if (data != null)
{
data.triangleIndexs = triangleIndexList;
data.vertexs = vertexList.ToArray();
data.materail = m;
datalist.Add(data);
dataCount++;
System.Console.WriteLine(dataCount);
}
data = new Pass.PassData();
string[] tempAry = line.Split(new char[1] { ' ' });
string matName = tempAry[1];
m = matDic[matName];
vertexList = new List<Vertex>();
triangleIndexList = new List<int[]>();
cache.Clear();
}
else if (line.StartsWith("f"))
{
string[] tempAry = line.Split(new char[1] { ' ' });
int[] indexs = new int[3];
for (int i=3; i>=1; i--)
{
string s = tempAry[i];
if (string.IsNullOrWhiteSpace(s) || string.IsNullOrEmpty(s))
continue;
string[] IndexAry = s.Split(new char[1] { '/' });
if (IndexAry.Length == 1)
{
int posIndex = Convert.ToInt32(IndexAry[0]) - 1;
string cacheString = "pos" + posIndex.ToString();
if (cache.ContainsKey(cacheString))
{
int index = cache[cacheString];
indexs[i] = index;
}
else
{
Vertex newVertex = new Vertex();
newVertex.pos = posList[posIndex];
vertexList.Add(newVertex);
indexs[i] = vertexList.Count - 1;
cache[cacheString] = vertexList.Count - 1;
}
//triangleIndexList.Add(indexs);
}
else if (IndexAry.Length == 2)
{
int posIndex = Convert.ToInt32(IndexAry[0]) - 1;
int uvIndex = Convert.ToInt32(IndexAry[1]) - 1;
string cacheString = "pos" + posIndex.ToString() + "uv" + uvIndex.ToString();
if (cache.ContainsKey(cacheString))
{
int index = cache[cacheString];
indexs[i] = index;
}
else
{
Vertex newVertex = new Vertex();
newVertex.pos = posList[posIndex];
newVertex.uv = uvList[uvIndex];
vertexList.Add(newVertex);
indexs[i] = vertexList.Count - 1;
cache[cacheString] = vertexList.Count - 1;
}
//triangleIndexList.Add(indexs);
}
else if (IndexAry.Length == 3)
{
int posIndex = Convert.ToInt32(IndexAry[0]) - 1;
int uvIndex = Convert.ToInt32(IndexAry[1]) - 1;
int normalIndex = Convert.ToInt32(IndexAry[2]) - 1;
string cacheString = "pos" + posIndex.ToString() + "uv" + uvIndex.ToString() + "normal"+normalIndex.ToString();
if (cache.ContainsKey(cacheString))
{
int index = cache[cacheString];
indexs[i-1] = index;
}
else
{
Vertex newVertex = new Vertex();
newVertex.pos = posList[posIndex];
newVertex.uv = uvList[uvIndex];
newVertex.normal = normalList[normalIndex];
vertexList.Add(newVertex);
indexs[i-1] = vertexList.Count - 1;
cache[cacheString] = vertexList.Count - 1;
}
}
}
int index1 = indexs[0];
int index2 = indexs[1];
int index3 = indexs[2];
indexs[0] = index3;
indexs[1] = index2;
indexs[2] = index1;
triangleIndexList.Add(indexs);
}
}
if (data != null)
{
data.triangleIndexs = triangleIndexList;
data.vertexs = vertexList.ToArray();
data.materail = m;
datalist.Add(data);
}
return datalist;
}
static void Main(string[] args)
{
int width = 1024;
int height = 1024;
float near = 1f;
float far = 100.0f;
SRDevice.Device.Init(width, height);
Camera c = new Camera(near, far, (float)Math.PI/2,width, height);
Culler cull = new Culler();
SRDevice.Device.Camera = c;
SRDevice.Device.Cull = cull;
c.setLookAt(new Vector3(20, 20, 0), new Vector3(-0.1f, 0.5f, 1), new Vector3(0, 1, 0));
Vertex[] vertexs;
List<int[]> trianglesIndex;
ObjPaser p = new ObjPaser();
List<Pass.PassData> dataList = p.PaserObj("media/cube.obj");
Model m1 = new Model(dataList);
Vertex v1 = new Vertex();
v1.pos = new Vector4(-0.5f, -0.5f, 11f, 0);
v1.color = new Color4(1.0f, 0.5f, 0.5f, 0.5f);
Vertex v2 = new Vertex();
v2.pos = new Vector4(-0.5f, 0.5f, 11f, 0);
v2.color = new Color4(1.0f, 0.5f, 0.5f, 0.5f);
Vertex v3 = new Vertex();
v3.pos = new Vector4(0.5f, -0.5f, 11f, 0);
v3.color = new Color4(1.0f, 0.5f, 0.5f, 0.5f);
Vertex v4 = new Vertex();
v4.pos = new Vector4(0.5f, 0.5f, 11f, 0);
v4.color = new Color4(1.0f, 0.5f, 0.5f, 0.5f);
Pass.PassData data = new Pass.PassData();
data.vertexs = new Vertex[4];
data.vertexs[0] = v1;
data.vertexs[1] = v2;
data.vertexs[2] = v3;
data.vertexs[3] = v4;
data.triangleIndexs = new List<int[]>();
int[] triangle1 = new int[3] { 0, 3, 2 };
int[] triangle2 = new int[3] { 3, 0, 1 };
data.triangleIndexs.Add(triangle1);
data.triangleIndexs.Add(triangle2);
data.materail = new Material();
Model m2 = new Model(new List<Pass.PassData>() { data });
m2.Render(Matrix.Invert(SRDevice.Device.Camera.getViewMatrix()));
m1.transform.localPosition = new Vector4(0.0f, 0.0f, 10.0f, 0.0f);
m1.transform.localScale = new Vector4(10.0f, 10.0f, 10.0f, 0.0f);
//m1.transform.localRotation = new Vector4(0.0f, (float)Math.PI / 4, 0.0f, 0.0f);
//m1.Render();
SRDevice.Device.Present();
}