bool ReadBones()
{
Advance("numbones");
int boneNum = int.Parse(NextToken);
bones = new MD5Bone[boneNum];
for (int i = 0; i < boneNum; i++)
{
Advance("bone");
// sanity check
int num = int.Parse(NextToken);
System.Diagnostics.Debug.Assert(num == i, "Invalid bone num!");
// read bone data - name, bindpos, bindmat and [parent]
Advance("name");
string name = NextToken;
Advance("bindpos");
Math.Vector3 position = new Math.Vector3(
NextFloat, NextFloat, NextFloat);
Advance("bindmat");
Math.Matrix4 md5matrix = new Math.Matrix4(
NextFloat, NextFloat, NextFloat, 0,
NextFloat, NextFloat, NextFloat, 0,
NextFloat, NextFloat, NextFloat, 0,
position.X, position.Y, position.Z, 0);
Math.Matrix4 matrix = Math.Matrix4.Zero;
matrix.Column1 = md5matrix.Column1;
matrix.Column2 = md5matrix.Column3;
matrix.Column3 = md5matrix.Column2;
matrix.Column4 = md5matrix.Column4;
Advance("parent", "bone");
string parentName = null;
if (CurrentToken == "parent")
{
parentName = NextToken;
}
bones[i] = new MD5Bone(name, matrix, parentName);
}
return(true);
}
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);
}
