/// <summary>
/// Prepare mesh for rendering
/// </summary>
void PrepareMesh()
{
int i, j, k;
meshes.Clear();
// Calculate the final Position ingame Position of all the model vertexes
for (k = 0; k < numMesh; k++)
{
numOfFaces = model[k].numTris;
vertices = new Vertex[numOfFaces * 3];
for (i = 0; i < model[k].numVert; i++)
{
Vector3 finalVertex = new Vector3(0, 0, 0);
for (j = 0; j < model[k].verts[i].countw; j++)
{
MD5Weight wt = model[k].weights[model[k].verts[i].startw + j];
MD5Joint joint = skeleton[wt.joint];
Vector3 wv = MathExt.RotatePoint(ref joint.orient, ref wt.pos);
finalVertex.X += (joint.pos.X + wv.X) * wt.bias;
finalVertex.Y += (joint.pos.Y + wv.Y) * wt.bias;
finalVertex.Z += (joint.pos.Z + wv.Z) * wt.bias;
}
finalVert[i] = finalVertex;
}
// aika laskea normaalit uudelleen?
if (updateNormalsCount == FramesBetweenNormalsUpdate)
{
MathExt.CalcNormals(ref finalVert, ref model[k].faces, ref normals, false);
updateNormalsCount = 0;
}
else
{
updateAnimCount++;
}
int count = 0;
// Organize the final vertexes acording to the meshes triangles
for (i = 0; i < model[k].numTris; i++)
{
vertices[count] = new Vertex(finalVert[(int)model[k].faces[i][0]], normals[(int)model[k].faces[i][0]], model[k].verts[(int)model[k].faces[i][0]].uv);
vertices[count + 1] = new Vertex(finalVert[(int)model[k].faces[i][1]], normals[(int)model[k].faces[i][1]], model[k].verts[(int)model[k].faces[i][1]].uv);
vertices[count + 2] = new Vertex(finalVert[(int)model[k].faces[i][2]], normals[(int)model[k].faces[i][2]], model[k].verts[(int)model[k].faces[i][2]].uv);
count += 3;
}
meshes.Add(vertices);
if (model[k].vbo != null)
{
model[k].vbo.Update(vertices);
}
}
}
/// <summary>
/// Prepare mesh for rendering
/// </summary>
void PrepareMesh()
{
int i, j, k;
meshes.Clear();
// Calculate the final Position ingame Position of all the model vertexes
for (k = 0; k < numMesh; k++)
{
numOfFaces = model[k].numTris;
VertexBuffer = new Vertex[numOfFaces * 3];
for (i = 0; i < model[k].numVert; i++)
{
Vector3 finalVertex = new Vector3(0, 0, 0);
for (j = 0; j < model[k].verts[i].countw; j++)
{
MD5Weight wt = model[k].weights[model[k].verts[i].startw + j];
MD5Joint joint = skeleton[wt.joint];
Vector3 wv = QuaternionExt.RotatePoint(joint.orient, wt.pos);
finalVertex.X += (joint.pos.X + wv.X) * wt.bias;
finalVertex.Y += (joint.pos.Y + wv.Y) * wt.bias;
finalVertex.Z += (joint.pos.Z + wv.Z) * wt.bias;
}
finalVert[i] = finalVertex;
}
int count = 0;
// Organize the final vertexes acording to the meshes triangles
for (i = 0; i < model[k].numTris; i++)
{
VertexBuffer[count] = new Vertex(finalVert[(int)model[k].faces[i][0]], normals[(int)model[k].faces[i][0]], model[k].verts[(int)model[k].faces[i][0]].uv);
VertexBuffer[count + 1] = new Vertex(finalVert[(int)model[k].faces[i][1]], normals[(int)model[k].faces[i][1]], model[k].verts[(int)model[k].faces[i][1]].uv);
VertexBuffer[count + 2] = new Vertex(finalVert[(int)model[k].faces[i][2]], normals[(int)model[k].faces[i][2]], model[k].verts[(int)model[k].faces[i][2]].uv);
count += 3;
}
meshes.Add(VertexBuffer);
if (model[k].vbo != null)
{
model[k].vbo.Update(VertexBuffer);
}
}
}
bool ReadWeights()
{
// weights
Advance("numweights");
int weightNum = int.Parse(NextToken);
weights = new MD5Weight[weightNum];
for (int j = 0; j < weightNum; j++)
{
Advance("weight");
//sanity check
int currentWeightNum = int.Parse(NextToken);
System.Diagnostics.Debug.Assert(j == currentWeightNum, "Invalid weight num!");
MD5Weight weight = new MD5Weight();
weight.BoneIndex = int.Parse(NextToken);
weight.BiasFactor = NextFloat;
weight.Vector = new Vector3(NextFloat, NextFloat, NextFloat);
weights[j] = weight;
}
return(true);
}
public MD5MeshContent(string filename)
{
int i, j;
string line;
string[] split;
if (!File.Exists(filename))
{
throw new FileNotFoundException("File " + filename + " not found in directory " + Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + ".");
}
FileStream fs = new FileStream(filename, FileMode.Open);
StreamReader reader = new StreamReader(fs);
#region LINE 1 - MD5Version
line = MD5MeshContent.ReadLine(reader);
if (!line.StartsWith("MD5Version"))
{
throw new Exception("File " + filename + "is not a valid .md5mesh.");
}
int Version = int.Parse(line.Substring(10));
#endregion
#region LINE 2 - commandline (discard)
line = MD5MeshContent.ReadLine(reader);
#endregion
#region LINE 3 - numJoints
line = MD5MeshContent.LookForLine(reader, "numJoints ");
int NumberOfJoints = int.Parse(line.Substring(10));
#endregion
#region LINE 4 - numMeshes
line = MD5MeshContent.LookForLine(reader, "numMeshes ");
int NumberOfMeshes = int.Parse(line.Substring(10));
#endregion
#region CHUNK - Joints
line = MD5MeshContent.LookForLine(reader, "joints");
MD5Joint[] joints = new MD5Joint[NumberOfJoints];
for (i = 0; i < joints.Length; i++)
{
MD5Joint joint = new MD5Joint();
line = MD5MeshContent.ReadLine(reader);
if (line.StartsWith("}"))
{
throw new Exception("MD5Mesh " + filename + " is invalid: Joints chuck has missing joints.");
}
//Line format: "name" parent ( x y z ) ( rX rY rZ )
split = line.Split(new Char[] { '"', '"', '(', ')', '(', ')' });
for (j = 0; j < split.Length; j++)
{
split[j] = split[j].Trim();
}
if (split.Length != 7)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Joint " + i + " appears to be malformed. ");
}
joint.Name = split[1];
joint.Parent = int.Parse(split[2]);
// Position
string[] pos = split[3].Split(' ', ' ');
if (pos.Length != 3)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Joint " + i + "'s position data appears to be malformed. ");
}
joint.Position = new Vector3(float.Parse(pos[0]), float.Parse(pos[2]), float.Parse(pos[1]));
// Rotation
string[] rot = split[5].Split(' ', ' ');
if (rot.Length != 3)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Joint " + i + "'s rotation data appears to be malformed. ");
}
float x, y, z, w;
x = float.Parse(rot[0]);
y = float.Parse(rot[2]);
z = float.Parse(rot[1]);
w = MD5AnimationContent.ComputeW(x, y, z);
joint.Rotation = new Quaternion(x, y, z, w);
joints[i] = joint;
}
#endregion
#region CHUNKS - Meshes
MD5Submesh[] submeshes = new MD5Submesh[NumberOfMeshes];
for (i = 0; i < NumberOfMeshes; i++)
{
#region Pull the Mesh Chunk Out
string chunk = "";
line = MD5MeshContent.LookForLine(reader, "mesh {");
while (!line.Contains("}"))
{
if (reader.EndOfStream)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Mesh chunk " + i + " is malformed.");
}
line = MD5MeshContent.ReadLine(reader);
chunk += line + '\n';
}
StringReader sr = new StringReader(chunk);
#endregion
MD5Submesh mesh = new MD5Submesh();
#region mesh.Shader
line = MD5MeshContent.LookForLine(sr, "shader");
line = line.Substring(8);
if (line.LastIndexOf('.') > 0)
{
line = line.Substring(0, line.LastIndexOf('.'));
}
if (line.Length > 1 && line[0] == '/' && line[1] == '/')
{
line = line.Substring(2);
}
if (line.Length > 1 && line[line.Length - 1] == '"')
{
line = mesh.Shader.Substring(0, line.Length - 1);
}
mesh.Shader = line;
#endregion
line = MD5MeshContent.LookForLine(sr, "numverts");
mesh.NumberOfVertices = int.Parse(line.Substring(9));
mesh.Vertices = new MD5Vertex[mesh.NumberOfVertices];
#region mesh.Vertices[j]
for (j = 0; j < mesh.NumberOfVertices; j++)
{
MD5Vertex vert;
line = MD5MeshContent.LookForLine(sr, "vert");
split = line.Split(new char[] { ' ', '(', ' ', ')', ' ' });
if (int.Parse(split[1]) != j)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Vertex " + j + " in mesh chunk " + i + " is missing.");
}
vert.S = float.Parse(split[4]);
vert.T = float.Parse(split[5]);
vert.FirstWeight = int.Parse(split[8]);
vert.NumberOfWeights = int.Parse(split[9]);
mesh.Vertices[j] = vert;
}
#endregion
line = MD5MeshContent.LookForLine(sr, "numtris");
mesh.NumberOfTriangles = int.Parse(line.Substring(8));
mesh.Triangles = new MD5Triangle[mesh.NumberOfTriangles];
#region mesh.Triangles[j]
for (j = 0; j < mesh.NumberOfTriangles; j++)
{
MD5Triangle tri = new MD5Triangle();
line = MD5MeshContent.LookForLine(sr, "tri");
split = line.Split(new char[] { ' ' });
if (int.Parse(split[1]) != j)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Triangle " + j + " in mesh chunk " + i + " is missing.");
}
tri.Indices = new int[] { int.Parse(split[2]), int.Parse(split[3]), int.Parse(split[4]) };
mesh.Triangles[j] = tri;
}
#endregion
line = MD5MeshContent.LookForLine(sr, "numweights");
mesh.NumberOfWeights = int.Parse(line.Substring(10));
mesh.Weights = new MD5Weight[mesh.NumberOfWeights];
#region mesh.Weights[j]
for (j = 0; j < mesh.NumberOfWeights; j++)
{
MD5Weight weight = new MD5Weight();
line = MD5MeshContent.LookForLine(sr, "weight");
split = line.Split(new char[] { ' ', '(', ')' });
if (int.Parse(split[1]) != j)
{
throw new Exception("MD5Mesh " + filename + " is invalid: Weight " + j + " in mesh chunk " + i + " is missing.");
}
weight.Joint = int.Parse(split[2]);
weight.Weight = float.Parse(split[3]);
weight.Position = new Vector3(float.Parse(split[6]), float.Parse(split[8]), float.Parse(split[7]));
mesh.Weights[j] = weight;
}
#endregion
submeshes[i] = mesh;
}
#endregion
this.Filename = filename.Substring(filename.LastIndexOf("Content") + 8);
this.Joints = joints;
this.Submeshes = submeshes;
}
bool ReadMeshes()
{
Advance("nummeshes");
int meshNum = int.Parse(NextToken);
mesh = new Mesh();
for (int i = 0; i < 1 /*meshNum*/; i++)
{
Advance("mesh");
// sanity check
int num = int.Parse(NextToken);
System.Diagnostics.Debug.Assert(num == i, "Invalid mesh num!");
// read mesh data - shader, verts
Advance("shader");
string shaderPath = NextToken;
FileInfo info = new FileInfo(shaderPath);
string localPath = shaderPath.Insert(shaderPath.Length - info.Extension.Length, "_local");
string diffusePath = shaderPath.Insert(shaderPath.Length - info.Extension.Length, "_d");
Textures textures = new Textures();
ITexture texture = null;
try {
texture = TextureManager.Instance.Load(shaderPath);
} catch {
texture = TextureManager.Instance.Load(diffusePath);
}
ITexture normalMap = TextureManager.Instance.Load(localPath);
textures["color"] = texture;
textures["normal"] = normalMap;
if (!ReadVertices())
{
return(false);
}
if (!ReadTriangles())
{
return(false);
}
if (!ReadWeights())
{
return(false);
}
// let's test it
VertexUnit vertexUnit = new VertexUnit(VertexFormat.PositionTexture2Tangent, vertices.Length);
PositionStream positionStream = (PositionStream)vertexUnit[0];
TextureStream textureStream = (TextureStream)vertexUnit[1];
TextureStream normalStream = (TextureStream)vertexUnit[2];
for (int j = 0; j < vertices.Length; j++)
{
Vector3 pos = Vector3.Zero;
MD5Vertex vertex = vertices[j];
for (int k = 0; k < vertex.WeightCount; k++)
{
MD5Weight weight = weights[vertex.WeightIndex + k];
MD5Bone bone = bones[weight.BoneIndex];
pos += weight.Vector * bone.Matrix * weight.BiasFactor;
}
positionStream[j] = pos;
textureStream[j] = vertex.UV;
normalStream[j] = vertex.UV;
}
// add tangent space stuff
IGraphicsStream[] streams = Util.CalcTangentSpaceStreams(positionStream, textureStream, indexStream);
Array.Copy(streams[0].Data, vertexUnit[3].Data, vertices.Length);
Array.Copy(streams[1].Data, vertexUnit[4].Data, vertices.Length);
Array.Copy(streams[2].Data, vertexUnit[5].Data, vertices.Length);
//mesh.SubSets.Add( new SubSet(vertexUnit, indexStream, material));
}
return(true);
}
