private void WriteMaterials(BinaryWriter bw, AMT_MODEL model)
{
List <AMT_MATERIAL> materials = model.Materials;
for (int i = 0; i < materials.Count; i++)
{
char[] name = Tools.GetCharArray(materials[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Materials " + materials[i].Name;
WriteVector(bw, materials[i].Ambient);
WriteVector(bw, materials[i].Diffuse);
WriteVector(bw, materials[i].Specular);
WriteVector(bw, materials[i].Emissive);
bw.Write(materials[i].SpecularPower);
bw.Write(materials[i].Transparency);
char[] diffuseTexture = Tools.GetCharArray(materials[i].DiffuseTexture, 64);
bw.Write(diffuseTexture);
char[] specularTexture = Tools.GetCharArray(materials[i].SpecularTexture, 64);
bw.Write(specularTexture);
char[] normalTexture = Tools.GetCharArray(materials[i].NormalTexture, 64);
bw.Write(normalTexture);
char[] animatedTexture = Tools.GetCharArray(materials[i].AnimatedTexture, 64);
bw.Write(animatedTexture);
bw.Write(materials[i].Flag);
}
}
public static void CenterPivot(ref AMT_MODEL model)
{
List<Vector3> vertices = new List<Vector3>();
for (int i = 0; i < model.Vertices.Count; i++)
vertices.Add(model.Vertices[i].Position);
BoundingBox bb = BoundingBox.CreateFromPoints(vertices);
Vector3 positionAjust = -(bb.Max + bb.Min) / 2;
Matrix translation = Matrix.CreateTranslation(positionAjust);
//redimensiona os vertices
for (int i = 0; i < model.Vertices.Count; i++)
model.Vertices[i].Position = Vector3.Transform(model.Vertices[i].Position, translation);
//reposiciona tb todos os bones e os keyframes
if (model.Joints != null)
{
for (int i = 0; i < model.Joints.Count; i++)
{
AMT_JOINT v = model.Joints[i];
//como ele mexeu na posicao entao mexe so no raiz
if (v.Name == "Root")
v.BindMatrix *= translation;
if (model.Joints[i].ParentID != -1)
v.MatrixAbsolute = model.Joints[i].BindMatrix *
model.Joints[model.Joints[i].ParentID].MatrixAbsolute;
else
v.MatrixAbsolute = model.Joints[i].BindMatrix;
v.InverseBindMatrix = Matrix.Invert(translation) * v.InverseBindMatrix;
//mexe so no raiz
if (v.Name == "Root")
{
for (int j = 0; j < v.KFData.Count; j++)
{
AMT_KF p = v.KFData[j];
p.BindMatrix *= translation;
v.KFData[j] = p;
}
}
model.Joints[i] = v;
}
}
}
private void WriteAnimations(BinaryWriter bw, AMT_MODEL model)
{
List <AMT_ANIMATION> animations = model.Animations;
for (int i = 0; i < animations.Count; i++)
{
char[] name = Tools.GetCharArray(animations[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Bones: animation: " + animations[i].Name;
bw.Write(animations[i].StartFrame);
bw.Write(animations[i].EndFrame);
bw.Write(animations[i].Active);
}
}
private void WriteAnimations(BinaryWriter bw, AMT_MODEL model)
{
List<AMT_ANIMATION> animations = model.Animations;
for (int i = 0; i < animations.Count; i++)
{
char[] name = Tools.GetCharArray(animations[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Bones: animation: " + animations[i].Name;
bw.Write(animations[i].StartFrame);
bw.Write(animations[i].EndFrame);
bw.Write(animations[i].Active);
}
}
private void WriteFaces(BinaryWriter bw, AMT_MODEL model)
{
List<AMT_FACE> faces = model.Faces;
for (int i = 0; i < faces.Count; i++)
{
_import.ProgressText = "Exporting Faces " + i.ToString() + "/" + faces.Count.ToString();
for (int j = 0; j < faces[i].Indices.Count; j++)
bw.Write(faces[i].Indices[j]);
WriteVector(bw, faces[i].Normal);
bw.Write(faces[i].MeshID);
bw.Write(faces[i].Flag);
}
}
public bool Export(AMT_MODEL model, string filePath, Import import)
{
_import = import;
using (BinaryWriter bw = new BinaryWriter(File.Open(filePath, FileMode.Create)))
{
WriteHead(bw, model);
WriteVertices(bw, model);
WriteFaces(bw, model);
WriteMeshes(bw, model);
WriteMaterials(bw, model);
WriteJoints(bw, model);
WriteAnimations(bw, model);
bw.Close();
}
return(true);
}
private void WriteHead(BinaryWriter bw, AMT_MODEL model)
{
_import.ProgressText = "Exporting Head";
AMT_HEAD head = model.Head;
bw.Write(head.Version);
bw.Write(head.NumVertices);
bw.Write(head.NumIndices);
bw.Write(head.NumFaces);
bw.Write(head.NumMeshes);
bw.Write(head.NumMaterials);
bw.Write(head.NumJoints);
bw.Write(head.AnimationFPS);
bw.Write(head.CurrentTime);
bw.Write(head.NumFrames);
bw.Write(head.NumAnimations);
bw.Write(head.HasSkeleton);
}
private void WriteHead(BinaryWriter bw, AMT_MODEL model)
{
_import.ProgressText = "Exporting Head";
AMT_HEAD head = model.Head;
bw.Write(head.Version);
bw.Write(head.NumVertices);
bw.Write(head.NumIndices);
bw.Write(head.NumFaces);
bw.Write(head.NumMeshes);
bw.Write(head.NumMaterials);
bw.Write(head.NumJoints);
bw.Write(head.AnimationFPS);
bw.Write(head.CurrentTime);
bw.Write(head.NumFrames);
bw.Write(head.NumAnimations);
bw.Write(head.HasSkeleton);
}
public bool Export(AMT_MODEL model, string filePath, Import import)
{
_import = import;
using (BinaryWriter bw = new BinaryWriter(File.Open(filePath, FileMode.Create)))
{
WriteHead(bw, model);
WriteVertices(bw, model);
WriteFaces(bw, model);
WriteMeshes(bw, model);
WriteMaterials(bw, model);
WriteJoints(bw, model);
WriteAnimations(bw, model);
bw.Close();
}
return true;
}
void AddAnimations(ref AMT_MODEL? amtModel)
{
List<AMT_ANIMATION> animations = new List<AMT_ANIMATION>();
for (int i = 0; i < animationsData.Rows.Count; i++)
{
var animation = new AMT_ANIMATION()
{
StartFrame = (uint)animationsData.Rows[i]["Start"],
EndFrame = (uint)animationsData.Rows[i]["End"],
Name = animationsData.Rows[i]["Name"].ToString()
};
animations.Add(animation);
}
AMT_MODEL im = amtModel.Value;
im.Animations = animations;
im.Head.NumAnimations = (uint)animations.Count;
amtModel = im;
}
private void WriteFaces(BinaryWriter bw, AMT_MODEL model)
{
List <AMT_FACE> faces = model.Faces;
for (int i = 0; i < faces.Count; i++)
{
_import.ProgressText = "Exporting Faces " + i.ToString() + "/" + faces.Count.ToString();
for (int j = 0; j < faces[i].Indices.Count; j++)
{
bw.Write(faces[i].Indices[j]);
}
WriteVector(bw, faces[i].Normal);
bw.Write(faces[i].MeshID);
bw.Write(faces[i].Flag);
}
}
private void WriteMeshes(BinaryWriter bw, AMT_MODEL model)
{
List <AMT_MESH> meshes = model.Meshes;
for (int i = 0; i < meshes.Count; i++)
{
char[] name = Tools.GetCharArray(meshes[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Mesh " + meshes[i].Name;
bw.Write(meshes[i].NumFaces);
for (int j = 0; j < meshes[i].FaceIndices.Count; j++)
{
bw.Write(meshes[i].FaceIndices[j]);
}
bw.Write(meshes[i].MaterialID);
bw.Write(meshes[i].Flag);
}
}
private void WriteJoints(BinaryWriter bw, AMT_MODEL model)
{
List <AMT_JOINT> joints = model.Joints;
for (int i = 0; i < joints.Count; i++)
{
char[] name = Tools.GetCharArray(joints[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Bones: name: " + joints[i].Name;
bw.Write(joints[i].ID);
bw.Write(joints[i].ParentID);
//grava os ids dos filhos
bw.Write(joints[i].NumChildren);
if (joints[i].NumChildren > 0)
{
foreach (var item in joints[i].JointChildren)
{
bw.Write(item);
}
}
//grava todos os keyframes desse joint
bw.Write(joints[i].NumKF);
if (joints[i].NumKF > 0)
{
WriteKFData(bw, joints[i].KFData);
}
bw.Write(joints[i].IsAnimated);
bw.Write(joints[i].Flag);
WriteMatrix(bw, joints[i].BindMatrix);
WriteMatrix(bw, joints[i].MatrixAbsolute);
WriteMatrix(bw, joints[i].InverseBindMatrix);
}
}
private void WriteVertices(BinaryWriter bw, AMT_MODEL model)
{
List <AMT_VERTEX> vertices = model.Vertices;
for (int i = 0; i < vertices.Count; i++)
{
_import.ProgressText = "Exporting Vertices " + i.ToString() + "/" + vertices.Count.ToString();
WriteVector(bw, vertices[i].Position);
WriteVector(bw, vertices[i].TexCoord1);
WriteVector(bw, vertices[i].TexCoord2);
WriteVector(bw, vertices[i].Normal);
for (int j = 0; j < 4; j++)
{
bw.Write(vertices[i].BoneIndices[j]);
bw.Write(vertices[i].BoneWeights[j]);
}
bw.Write(vertices[i].Flag);
}
}
public AMT_MODEL ConvertCollada(Stream stream)
{
var amtModel = new AMT_MODEL();
var doc = XDocument.Load(stream);
var colladaNode = doc.Root;
Namespace = doc.Root.Name.Namespace.NamespaceName;
//ReadGeometries(new XElement(XName.Get("library_geometries", Namespace)), ref amtModel);
//_effects = ReadEffects(colladaNode.Element(XName.Get("library_effects", COLLADAConverter.Namespace)));
//_materials = ReadMaterials(colladaNode.Element(XName.Get("library_materials", COLLADAConverter.Namespace)));
////Lê os layers
//var geometryNodes = colladaNode.Element(XName.Get("library_geometries", COLLADAConverter.Namespace));
//if (geometryNodes != null)
// pmobDoc.Layers = ReadLayers(geometryNodes.Elements());
//ReadLibraryNodes(colladaNode.Element(XName.Get("library_nodes", COLLADAConverter.Namespace)));
//var scenesElement = colladaNode.Element(XName.Get("library_visual_scenes", COLLADAConverter.Namespace));
//if (scenesElement != null)
//{
// var nodes = ReadNodes(scenesElement.Element(XName.Get("visual_scene", COLLADAConverter.Namespace)));
// var rootNode = new Node("root", "root", nodes);
// pmobDoc.Primitive = CreatePrimitive(rootNode);
//}
////Gira o objeto dependendo do up
//var assetNode = colladaNode.Element(XName.Get("asset", COLLADAConverter.Namespace));
//if (assetNode != null)
//{
// var upAxis = assetNode.Elements(XName.Get("up_axis", COLLADAConverter.Namespace));
//}
return amtModel;
}
private void WriteVertices(BinaryWriter bw, AMT_MODEL model)
{
List<AMT_VERTEX> vertices = model.Vertices;
for (int i = 0; i < vertices.Count; i++)
{
_import.ProgressText = "Exporting Vertices " + i.ToString() + "/" + vertices.Count.ToString();
WriteVector(bw, vertices[i].Position);
WriteVector(bw, vertices[i].TexCoord1);
WriteVector(bw, vertices[i].TexCoord2);
WriteVector(bw, vertices[i].Normal);
for (int j = 0; j < 4; j++)
{
bw.Write(vertices[i].BoneIndices[j]);
bw.Write(vertices[i].BoneWeights[j]);
}
bw.Write(vertices[i].Flag);
}
}
private void ConvertMesh(XElement meshElement, XElement triangles, ref AMT_MODEL amtModel)
{
//pega o mesh atual
uint meshID = (uint)amtModel.Meshes.Count - 1;
AMT_MESH mesh = amtModel.Meshes[amtModel.Meshes.Count - 1];
//ja armazena o numero de faces do mesh
mesh.NumFaces = int.Parse(triangles.Attribute("count").Value);
//pega os inputs vertex, normal, texcoord etc
List<XElement> inputs = triangles.Elements(XName.Get("input", Namespace)).ToList();
XElement vertex = inputs.Find(item => { return item.Attribute("semantic").Value == "VERTEX"; });
XElement normal = inputs.Find(item => { return item.Attribute("semantic").Value == "NORMAL"; });
XElement texcoord = inputs.Find(item => { return item.Attribute("semantic").Value == "TEXCOORD"; });
//elementos que tem na tag vertices, procurar o id = vertex.source
List<XElement> verticesElements = meshElement.Elements(XName.Get("vertices", Namespace)).ToList();
XElement verticeElement = verticesElements.Find(item => { return item.Attribute("id").Value == vertex.Attribute("source").Value.Substring(1); });
//agora com o vertice certo pega o position
List<XElement> inputsVerticesElement = verticeElement.Elements(XName.Get("input", Namespace)).ToList();
XElement position = inputsVerticesElement.Find(item => { return item.Attribute("semantic").Value == "POSITION"; });
//agora é so carregar os dados dos sources conforme os id dos inputs position, normal, texcoord
List<XElement> sources = meshElement.Elements(XName.Get("source", Namespace)).ToList();
XElement sourcePosition = sources.Find(item => { return item.Attribute("id").Value == position.Attribute("source").Value.Substring(1); });
XElement sourceNormal = sources.Find(item => { return item.Attribute("id").Value == normal.Attribute("source").Value.Substring(1); });
XElement sourceTexcoord = sources.Find(item => { return item.Attribute("id").Value == texcoord.Attribute("source").Value.Substring(1); });
//pega os indices e junta tudo em um unico string
List<XElement> ps = triangles.Elements(XName.Get("p", Namespace)).ToList();
string indices = null;
foreach (var item in ps)
indices += ' ' + item.Value;
//separa todos os indices usando os offsets
string[] strIndices = indices.Replace('\n', ' ').Trim().Split(' ');
List<int> positionIndices = new List<int>();
int positionOffset = int.Parse(vertex.Attribute("offset").Value);
List<int> normalIndices = new List<int>();
int normalOffset = int.Parse(normal.Attribute("offset").Value);
List<int> texcoordIndices = new List<int>();
int texcoordOffset = int.Parse(texcoord.Attribute("offset").Value);
for (int i = 0; i < strIndices.Length; i += sources.Count)
{
positionIndices.Add(int.Parse(strIndices[i + positionOffset]));
normalIndices.Add(int.Parse(strIndices[i + normalOffset]));
texcoordIndices.Add(int.Parse(strIndices[i + texcoordOffset]));
}
//vertices reais
List<Vector3> positions = GetPositions(sourcePosition);
List<Vector3> normals = GetNormals(sourceNormal);
List<Vector2> texcoords = GetTexCoords(sourceTexcoord);
//agora é so pegar os indices e vincular com os arrays pra criar os vertices q vao para o amt
for (int i = 0; i < positionIndices.Count; i++)
{
AMT_VERTEX v = new AMT_VERTEX();
v.SID = positionIndices[i]; //utilizado para encontrar esses vertices depois quando for atualizar o peso dos bones
v.Position = positions[positionIndices[i]];
v.Normal = normals[normalIndices[i]];
v.TexCoord1 = texcoords[texcoordIndices[i]];
v.TexCoord1.Y = -v.TexCoord1.Y; //Inverto o Y pq o exportador do max usa as coordenadas do opengl
amtModel.Vertices.Add(v);
}
//carrega as faces
for (int i = 0; i < amtModel.Vertices.Count; i += 3)
{
AMT_FACE f = new AMT_FACE();
f.MeshID = meshID;
f.Indices = new List<int>();
f.Indices.Add(i);
f.Indices.Add(i + 1);
f.Indices.Add(i + 2);
f.Normal = Tools.GetNormal(amtModel.Vertices[i].Position, amtModel.Vertices[i + 1].Position, amtModel.Vertices[i + 2].Position);
amtModel.Faces.Add(f);
mesh.FaceIndices.Add(amtModel.Faces.Count - 1);
}
//finalmente seta o mesh atual
amtModel.Meshes[amtModel.Meshes.Count - 1] = mesh;
}
private void ConvertBones(XElement rootElement, ref AMT_MODEL amtModel)
{
//primeiro eu encontro o library_visual_scenes
XElement libraryVisualScenes = rootElement.Element(XName.Get("library_visual_scenes", Namespace));
XElement visualScene = libraryVisualScenes.Element(XName.Get("visual_scene", Namespace));
//se tem o nodo skeleton
XElement rootNode = FindRootSkeletonNodeId(visualScene);
amtModel.Joints = new List<AMT_JOINT>();
//Começo a percorrer os nodes procurando pela hierarquia de bones
if (rootNode != null)
{
//adiciona o bone raiz
Matrix matrix = Matrix.Identity;
string sid = rootNode.Attribute("sid").Value;
string boneId = rootNode.Attribute("id").Value;
XElement matrixElement = rootNode.Element(XName.Get("matrix", Namespace));
string matrixSID = null;
if (matrixElement.Attribute("sid") != null)
matrixSID = matrixElement.Attribute("sid").Value; //uso nas animacoes para achar o bone id/sid
matrix = Tools.ConvertStringToMatrix(matrixElement.Value, 0);
AMT_JOINT newBone = new AMT_JOINT();
newBone.SID = sid;
newBone.TARGET = boneId + "/" + matrixSID;
newBone.ID = 0;
newBone.ParentID = -1; //nao tem pai
newBone.Name = "Root";
newBone.NumChildren = 0;
newBone.JointChildren = new List<uint>();
newBone.NumKF = 0;
newBone.KFData = new List<AMT_KF>();
//se nao tem sid entao ele nao é animado
newBone.IsAnimated = (uint)(string.IsNullOrEmpty(matrixSID)? 0 : 1);
newBone.Flag = 0;
newBone.BindMatrix = matrix;
newBone.MatrixAbsolute = matrix;
newBone.InverseBindMatrix = Matrix.Invert(matrix);
amtModel.Joints.Add(newBone);
FillBoneNodes(ref newBone, rootNode, ref amtModel);
}
}
private void WriteJoints(BinaryWriter bw, AMT_MODEL model)
{
List<AMT_JOINT> joints = model.Joints;
for (int i = 0; i < joints.Count; i++)
{
char[] name = Tools.GetCharArray(joints[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Bones: name: " + joints[i].Name;
bw.Write(joints[i].ID);
bw.Write(joints[i].ParentID);
//grava os ids dos filhos
bw.Write(joints[i].NumChildren);
if (joints[i].NumChildren > 0)
foreach (var item in joints[i].JointChildren)
bw.Write(item);
//grava todos os keyframes desse joint
bw.Write(joints[i].NumKF);
if (joints[i].NumKF > 0)
WriteKFData(bw, joints[i].KFData);
bw.Write(joints[i].IsAnimated);
bw.Write(joints[i].Flag);
WriteMatrix(bw, joints[i].BindMatrix);
WriteMatrix(bw, joints[i].MatrixAbsolute);
WriteMatrix(bw, joints[i].InverseBindMatrix);
}
}
private AMT_MODEL ConvertDAEtoAMT(XElement rootElement)
{
AMT_MODEL amtModel = new AMT_MODEL();
amtModel.Vertices = new List<AMT_VERTEX>();
ConvertGeometries(rootElement, ref amtModel);
ConvertBones(rootElement, ref amtModel);
ConvertAnimations(rootElement, ref amtModel);
ConvertController(rootElement, ref amtModel);
ConvertHead(ref amtModel);
Optimize(ref amtModel);
return amtModel;
}
private void ConvertController(XElement rootElement, ref AMT_MODEL amtModel)
{
XElement libraryController = rootElement.Element(XName.Get("library_controllers", Namespace));
if (libraryController == null)
return;
List<XElement> controllers = libraryController.Elements(XName.Get("controller", Namespace)).ToList();
foreach (XElement controller in controllers)
{
XElement skin = controller.Element(XName.Get("skin", Namespace));
//joints elements
XElement jointsElements = skin.Element(XName.Get("joints", Namespace));
List<XElement> inputJointsElements = jointsElements.Elements(XName.Get("input", Namespace)).ToList();
XElement inverseBindMatrixElement = inputJointsElements.Find(item => { return item.Attribute("semantic").Value == "INV_BIND_MATRIX"; });
string inverseBindMatrixName = inverseBindMatrixElement.Attribute("source").Value.Substring(1);
//pega o nome do source
XElement vWeightsElement = skin.Element(XName.Get("vertex_weights", Namespace));
int numberOfWeights = int.Parse(vWeightsElement.Attribute("count").Value);
//pego o numero de bones q influenciam cada vertice
string vCount = vWeightsElement.Element(XName.Get("vcount", Namespace)).Value;
//par (indice do bone seguido do indice do peso)
string v = vWeightsElement.Element(XName.Get("v", Namespace)).Value;
List<XElement> inputElements = vWeightsElement.Elements(XName.Get("input", Namespace)).ToList();
//procura o source joint
XElement jointInputElement = inputElements.Find(item => { return item.Attribute("semantic").Value == "JOINT"; });
string jointSourceName = jointInputElement.Attribute("source").Value.Substring(1);
//procura o source weight
XElement weightInputElement = inputElements.Find(item => { return item.Attribute("semantic").Value == "WEIGHT"; });
string weightSourceName = weightInputElement.Attribute("source").Value.Substring(1);
//pega o bindmatrix (utilizado para rotacionar o bone)
string bindShapeMatrix = skin.Element(XName.Get("bind_shape_matrix", Namespace)).Value;
Matrix bindMatrix = Tools.ConvertStringToMatrix(bindShapeMatrix, 0);
foreach (var item in amtModel.Joints)
{
if (item.Name == "Root")
item.BindMatrix *= bindMatrix;
}
//vai no source Joint descoberto e pega a lista de joints e weights
List<XElement> sourceElements = skin.Elements(XName.Get("source", Namespace)).ToList();
//pega todas as matrizes inversas
XElement invBindMatSourceElement = sourceElements.Find(item => { return item.Attribute("id").Value == inverseBindMatrixName; });
XElement floatArrayInvBind = invBindMatSourceElement.Element(XName.Get("float_array", Namespace));
int numberOfFloats = int.Parse(floatArrayInvBind.Attribute("count").Value);
string invBindMatFloats = floatArrayInvBind.Value;
invBindMatFloats = invBindMatFloats.Replace('\n', ' ').Trim();
Matrix[] invBindMat = new Matrix[numberOfFloats / 16];
for (int i = 0, j = 0; i < numberOfFloats; i+=16, j++)
invBindMat[j] = Tools.ConvertStringToMatrix(invBindMatFloats, i);
//pega a lista de nomes de bones na ordem
XElement jointSourceElement = sourceElements.Find(item => { return item.Attribute("id").Value == jointSourceName; });
string jointNames = jointSourceElement.Element(XName.Get("Name_array", Namespace)).Value;
//pega a lista de weights
XElement weightSourceElement = sourceElements.Find(item => { return item.Attribute("id").Value == weightSourceName; });
string weightValues = weightSourceElement.Element(XName.Get("float_array", Namespace)).Value;
//joga pra o array as influencias
string[] jointsOnSkin = jointNames.Trim().Split(' ');
string[] weights = weightValues.Replace('\n', ' ').Trim().Split(' ');
string[] influenceNumber = vCount.Trim().Split(' ');
string[] boneIndexWeight = v.Trim().Split(' ');
//construo um de para, dos indices que estao na lista de joints do amtmodel
List<uint> _from = new List<uint>();
List<uint> _to = new List<uint>();
//converto os indices dos bones q estao no <v> para os indices da lista que ja esta na lista
for (uint i = 0; i < amtModel.Joints.Count; i++)
{
for (uint j = 0; j < jointsOnSkin.Length; j++)
{
//procuro o joint na lista ja salva
if (amtModel.Joints[(int)i].SID == jointsOnSkin[j])
{
_from.Add(j);
_to.Add(i);
//seta a invesa da matrix
amtModel.Joints[(int)i].InverseBindMatrix = invBindMat[j];
}
}
}
//atribui para os vertices o id dos joints e tb os pesos
int vIndex = 0;
for (int i = 0; i < influenceNumber.Length; i++)
{
//primeira coisa encontrar todos os vertices da lista q ja existe com o SID = i
List<int> finalVertexListIndices = new List<int>();
for (int vi = 0; vi < amtModel.Vertices.Count; vi++)
{
if (amtModel.Vertices[vi].SID == i)
finalVertexListIndices.Add(vi);
}
//pega o primeiro vertices na lista ai de cima e atualiza os pesos e os indices
AMT_VERTEX firstVertex = amtModel.Vertices[finalVertexListIndices[0]];
uint numInfluence = uint.Parse(influenceNumber[i]);
uint[] boneIndices = new uint[numInfluence];
float[] boneWeights = new float[numInfluence];
#region PROCURA OS PESOS E INDICES PRO PRIMEIRO VERTICES DA LISTA
for (int d = 0; d < numInfluence; d++)
{
//seleciona o indice do bone na lista <v> e procura do de-para para achar o indice no amtmodel
uint boneIndex = uint.Parse(boneIndexWeight[vIndex++]);
for (int j = 0; j < _from.Count; j++)
{
if (_from[j] == boneIndex)
{
boneIndex = _to[j];
break;
}
}
uint weightIndex = uint.Parse(boneIndexWeight[vIndex++]);
//seta o indice e o peso do bone no vertice atual
boneIndices[d] = boneIndex;
boneWeights[d] = System.Convert.ToSingle(weights[weightIndex], CultureInfo.InvariantCulture);
}
//ele carrega o numero de influencias q tem no arquivo, pode ser mais ou menos q 4 mas eu preciso gravar 4 no arquivo
//entao se for menos coloco zero se for mais somo tudo no ultimo ate completar 1 q se foda
firstVertex.BoneIndices = new uint[4];
firstVertex.BoneWeights = new float[4];
for (int d = 0; d < numInfluence; d++)
{
if (d > 3)
firstVertex.BoneWeights[3] += boneWeights[d];
else
{
firstVertex.BoneIndices[d] = boneIndices[d];
firstVertex.BoneWeights[d] = boneWeights[d];
}
}
#endregion
//depois de achar os pesos e indices do primeiro vertice da finalVertexListIndices entao ele so copia para os outros da lista
for (int vi = 1; vi < finalVertexListIndices.Count; vi++)
{
AMT_VERTEX vertex = amtModel.Vertices[finalVertexListIndices[vi]];
vertex.BoneIndices = new uint[4];
vertex.BoneWeights = new float[4];
for (int d = 0; d < 4; d++)
{
vertex.BoneIndices[d] = firstVertex.BoneIndices[d];
vertex.BoneWeights[d] = firstVertex.BoneWeights[d];
}
}
}
}
}
private void ConvertHead(ref AMT_MODEL amtModel)
{
amtModel.Head.Version = 1;
amtModel.Head.NumFaces = (uint)amtModel.Faces.Count;
amtModel.Head.NumIndices = (uint)amtModel.Faces.Count * 3;
amtModel.Head.NumMeshes = (uint)amtModel.Meshes.Count;
amtModel.Head.NumVertices = (uint)amtModel.Vertices.Count;
amtModel.Head.NumMaterials = (uint)amtModel.Materials.Count;
amtModel.Head.NumJoints = (uint)amtModel.Joints.Count;
//o numero de animacaoes nao esta aqui
}
private void ConvertGeometries(XElement rootElement, ref AMT_MODEL amtModel)
{
//pega a tag principal das geometrias
XElement libraryGeometries = rootElement.Element(XName.Get("library_geometries", Namespace));
List<XElement> geometries = libraryGeometries.Elements(XName.Get("geometry", Namespace)).ToList();
if (geometries.Count > 0)
{
amtModel.Meshes = new List<AMT_MESH>();
amtModel.Faces = new List<AMT_FACE>();
amtModel.Materials = new List<AMT_MATERIAL>();
amtModel.Head = new AMT_HEAD();
foreach (XElement geometry in geometries)
{
XElement meshElement = geometry.Element(XName.Get("mesh", Namespace));
//resgata os triangulos, se for uma versao anterior a 1.4.1 o nome é polygons
XElement triangles = meshElement.Element(XName.Get("triangles", Namespace));
if (triangles == null)
triangles = meshElement.Element(XName.Get("polygons", Namespace));
//se existe uma tag triangles entao ele vai pra frente
if (triangles != null)
{
AMT_MESH mesh = new AMT_MESH();
mesh.Name = geometry.Attribute("name").Value;
mesh.FaceIndices = new List<int>();
amtModel.Meshes.Add(mesh);
//converte o mesh, pega todos os vertices, indices e faces e ja armazena no model amt
ConvertMesh(meshElement, triangles, ref amtModel);
//carrega o material
//pega no visual scene o nome do material
XElement libraryVisualScene = rootElement.Element(XName.Get("library_visual_scenes", Namespace));
XElement visualSceneElement = libraryVisualScene.Element(XName.Get("visual_scene", Namespace));
List<XElement> visualSceneNodes = visualSceneElement.Elements(XName.Get("node", Namespace)).ToList();
XElement geometryScene = visualSceneNodes.Find(item => { return item.Attribute("name").Value == mesh.Name; });
XElement instanceGeometry = geometryScene.Element(XName.Get("instance_geometry", Namespace));
//se existe a instancia geometry entao ele pega senao ele tem skin ai vai pelo controller
XElement materialScene;
if (instanceGeometry != null)
{
XElement bindMaterial = instanceGeometry.Element(XName.Get("bind_material", Namespace));
XElement techniqueCommon = bindMaterial.Element(XName.Get("technique_common", Namespace));
List<XElement> materialsScene = techniqueCommon.Elements(XName.Get("instance_material", Namespace)).ToList();
materialScene = materialsScene.Find(item => { return item.Attribute("symbol").Value == triangles.Attribute("material").Value; });
}
else
{
XElement controller = geometryScene.Element(XName.Get("instance_controller", Namespace));
string skeletonName = controller.Element(XName.Get("skeleton", Namespace)).Value.Substring(1);
if (skeletonName != null)
amtModel.Head.HasSkeleton = 1;
XElement bindMaterial = controller.Element(XName.Get("bind_material", Namespace));
XElement techniqueCommon = bindMaterial.Element(XName.Get("technique_common", Namespace));
List<XElement> materialsScene = techniqueCommon.Elements(XName.Get("instance_material", Namespace)).ToList();
materialScene = materialsScene.Find(item => { return item.Attribute("symbol").Value == triangles.Attribute("material").Value; });
}
string materialID = materialScene.Attribute("target").Value.Substring(1);
if (materialID != null)
{
//carrega a tag de materiais
XElement libraryMaterials = rootElement.Element(XName.Get("library_materials", Namespace));
List<XElement> materials = libraryMaterials.Elements(XName.Get("material", Namespace)).ToList();
//carrega a tag de imagens
XElement libraryImages = rootElement.Element(XName.Get("library_images", Namespace));
List<XElement> images = null;
if (libraryImages != null)
images = libraryImages.Elements(XName.Get("image", Namespace)).ToList();
//carrega os atributos do primeiro effect
XElement libraryEffect = rootElement.Element(XName.Get("library_effects", Namespace));
List<XElement> effectElements = libraryEffect.Elements(XName.Get("effect", Namespace)).ToList();
XElement materialElement = materials.Find(item => { return item.Attribute("id").Value == materialID; });
if (materialElement != null)
{
AMT_MATERIAL material = ConvertMaterial(materialElement, effectElements, images);
amtModel.Materials.Add(material);
//seta o id do material q ta na estrutura principal
mesh.MaterialID = (uint)amtModel.Materials.Count() - 1;
}
}
}
}
}
}
//deixa todos os modelos com tamanho 1 para serem redimensionados no editor
public static void UniformScale(ref AMT_MODEL model)
{
List<Vector3> vertices = new List<Vector3>();
for (int i = 0; i < model.Vertices.Count; i++)
vertices.Add(model.Vertices[i].Position);
BoundingSphere sphere = BoundingSphere.CreateFromPoints(vertices);
//redimensiona os vertices
float scalefactor = 1.0f / sphere.Radius;
//redimensiona tb todos os bones e os keyframes
Matrix scale = Matrix.CreateScale(scalefactor);
for (int i = 0; i < model.Vertices.Count; i++)
{
model.Vertices[i].Position = Vector3.Transform(model.Vertices[i].Position, scale);
model.Vertices[i].Normal = Vector3.TransformNormal(model.Vertices[i].Normal, scale);
}
if (model.Joints != null)
{
for (int i = 0; i < model.Joints.Count; i++)
{
AMT_JOINT v = model.Joints[i];
//como ele mexeu na posicao entao mexe so no raiz
if (v.Name == "Root")
v.BindMatrix *= scale;
if (model.Joints[i].ParentID != -1)
v.MatrixAbsolute = model.Joints[i].BindMatrix *
model.Joints[model.Joints[i].ParentID].MatrixAbsolute;
else
v.MatrixAbsolute = model.Joints[i].BindMatrix;
v.InverseBindMatrix = Matrix.Invert(scale) * v.InverseBindMatrix;
if (v.Name == "Root")
{
for (int j = 0; j < v.KFData.Count; j++)
{
AMT_KF p = v.KFData[j];
p.BindMatrix *= scale;
v.KFData[j] = p;
}
}
model.Joints[i] = v;
}
}
}
public static void SetYUp(ref AMT_MODEL model, Vector3 upVector)
{
if (upVector == Vector3.UnitY) return;
//aplica a rotacao
Matrix rotation;
if (upVector == Vector3.UnitX)
rotation = Matrix.CreateRotationZ(-MathHelper.PiOver2);
else
rotation = Matrix.CreateRotationX(-MathHelper.PiOver2);
List<Vector3> vertices = new List<Vector3>();
for (int i = 0; i < model.Vertices.Count; i++)
{
AMT_VERTEX v = model.Vertices[i];
Vector3.Transform(ref v.Position, ref rotation, out v.Position);
Vector3.TransformNormal(ref v.Normal, ref rotation, out v.Normal);
}
if (model.Joints != null)
{
for (int i = 0; i < model.Joints.Count; i++)
{
AMT_JOINT v = model.Joints[i];
//como ele mexeu na posicao entao mexe so no raiz
if (v.Name == "Root")
v.BindMatrix *= rotation;
if (model.Joints[i].ParentID != -1)
v.MatrixAbsolute = model.Joints[i].BindMatrix *
model.Joints[model.Joints[i].ParentID].MatrixAbsolute;
else
v.MatrixAbsolute = model.Joints[i].BindMatrix;
v.InverseBindMatrix = Matrix.Invert(rotation) * v.InverseBindMatrix;
//mexe so no raiz
if (v.Name == "Root")
{
for (int j = 0; j < v.KFData.Count; j++)
{
AMT_KF p = v.KFData[j];
p.BindMatrix *= rotation;
v.KFData[j] = p;
}
}
model.Joints[i] = v;
}
}
}
private void ConvertAnimations(XElement rootElement, ref AMT_MODEL amtModel)
{
XElement libraryAnimations = rootElement.Element(XName.Get("library_animations", Namespace));
if (libraryAnimations == null)
return;
List<XElement> animations = libraryAnimations.Elements(XName.Get("animation", Namespace)).ToList();
foreach (XElement animation in animations)
{
//pego os channels primeiro e percoro
List<XElement> channels = animation.Elements(XName.Get("channel", Namespace)).ToList();
foreach (XElement channel in channels)
{
//pego o source do channel para achar o sampler e o terget
string source = channel.Attribute("source").Value.Substring(1);
string target = channel.Attribute("target").Value;
List<XElement> samplers = animation.Elements(XName.Get("sampler", Namespace)).ToList();
XElement samplerElement = samplers.Find(item =>
{
return item.Attribute("id").Value == source;
});
//pego o nome do input source e tb do output source
string inputSourceName = samplerElement.Elements(XName.Get("input", Namespace))
.ToList()
.Find(item =>
{
return item.Attribute("semantic").Value == "INPUT";
}).Attribute("source").Value.Substring(1);
string outputSourceName = samplerElement.Elements(XName.Get("input", Namespace))
.ToList()
.Find(item =>
{
return item.Attribute("semantic").Value == "OUTPUT";
}).Attribute("source").Value.Substring(1);
//pego os elementos inputsource e outputsource
List<XElement> sourceElements = animation.Elements(XName.Get("source", Namespace)).ToList();
XElement inputSourceElement = sourceElements.Find(item =>
{
return item.Attribute("id").Value == inputSourceName;
});
XElement outputSourceElement = sourceElements.Find(item =>
{
return item.Attribute("id").Value == outputSourceName;
});
//agora vo atras do float_array do sourceinput e sourceoutput
XElement faInput = inputSourceElement.Element(XName.Get("float_array", Namespace));
amtModel.Head.NumFrames = System.Convert.ToUInt32(faInput.Attribute("count").Value);
string kfTimeValues = faInput.Value;
string[] kfTimes = kfTimeValues.Replace('\n', ' ').Trim().Split(' ');
uint numberOfMatrixFloats = amtModel.Head.NumFrames * 16;
string kfTransformValues = outputSourceElement.Element(XName.Get("float_array", Namespace)).Value.Replace('\n', ' ').Trim();
Matrix[] keyFramesMatrizes = new Matrix[amtModel.Head.NumFrames];
for (int i = 0, j = 0; i < numberOfMatrixFloats; i += 16, j++)
keyFramesMatrizes[j] = Tools.ConvertStringToMatrix(kfTransformValues, i);
//agora q tenho a lista de tempos e matrizes eu procuro qual o bone do momento e crio um kf
foreach (var joint in amtModel.Joints)
{
if (joint.TARGET == target)
{
joint.NumKF = (uint)kfTimes.Length;
for (int i = 0; i < joint.NumKF; i++)
{
joint.KFData.Add(new AMT_KF()
{
Time = System.Convert.ToSingle(kfTimes[i], CultureInfo.InvariantCulture),
BindMatrix = keyFramesMatrizes[i]
});
}
}
}
}
}
}
private void Optimize(ref AMT_MODEL amtModel)
{
List<AMT_VERTEX> vertices = new List<AMT_VERTEX>();
vertices.AddRange(amtModel.Vertices);
amtModel.Vertices.Clear();
//grava os vertices agora na ordem certa triangulados
int currentVertices = (int)amtModel.Head.NumVertices;
// optimazacao dor vertices
for (int i = 0; i < amtModel.Head.NumVertices; i++)
{
_import.ProgressText = "Importing Faces, recompute vertices " + i.ToString() + "/" + amtModel.Head.NumVertices.ToString();
// se o flag for 42 ele vai para o proximo
if (vertices[i].Flag == 42) continue;
for (int j = 0; j < amtModel.Head.NumVertices; j++)
if ((i != j) && vertices[i] == vertices[j])
{
//desliga o vertice pq esta duplicado
AMT_VERTEX v = vertices[j];
v.Flag = 42;
vertices[j] = v;
currentVertices--;
}
}
// Copia os vertices para o array da estrutura
for (int i = 0; i < amtModel.Head.NumVertices; i++)
{
// todos q nao sao 42
if (vertices[i].Flag != 42)
amtModel.Vertices.Add(vertices[i]);
}
//percorre o array de indices para procurar os vertices q estao na mesma posicao, se estiverem entao ele deixa os indices iguais
for (ulong i = 0; i < amtModel.Head.NumFaces; i++)
{
_import.ProgressText = "Importing Faces, recompute indices " + i.ToString() + "/" + amtModel.Head.NumFaces.ToString();
AMT_FACE f = amtModel.Faces[(int)i];
for (int n = 0; n < 3; n++)
{
for (int j = 0; j < (int)currentVertices; j++)
{
if (AMT_VERTEX.EqualsWithoutFlagTest(vertices[f.Indices[n]], amtModel.Vertices[j]))
{
f.Indices[n] = j;
}
}
}
amtModel.Faces[(int)i] = f;
}
//calcula as normais das faces
for (ulong i = 0; i < amtModel.Head.NumFaces; i++)
{
_import.ProgressText = "Importing Faces, recompute normals " + i.ToString() + "/" + amtModel.Head.NumFaces.ToString();
Vector3 v1 = amtModel.Vertices[amtModel.Faces[(int)i].Indices[0]].Position;
Vector3 v2 = amtModel.Vertices[amtModel.Faces[(int)i].Indices[1]].Position;
Vector3 v3 = amtModel.Vertices[amtModel.Faces[(int)i].Indices[2]].Position;
AMT_FACE face = amtModel.Faces[(int)i];
face.Normal = Tools.GetNormal(v1, v2, v3);
amtModel.Faces[(int)i] = face;
}
amtModel.Head.NumVertices = (uint)currentVertices;
}
private void WriteMeshes(BinaryWriter bw, AMT_MODEL model)
{
List<AMT_MESH> meshes = model.Meshes;
for (int i = 0; i < meshes.Count; i++)
{
char[] name = Tools.GetCharArray(meshes[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Mesh " + meshes[i].Name;
bw.Write(meshes[i].NumFaces);
for (int j = 0; j < meshes[i].FaceIndices.Count; j++)
bw.Write(meshes[i].FaceIndices[j]);
bw.Write(meshes[i].MaterialID);
bw.Write(meshes[i].Flag);
}
}
private void FillBoneNodes(ref AMT_JOINT parentBone, XElement boneNode, ref AMT_MODEL amtModel)
{
//pego todos os nodes
List<XElement> nodes = boneNode.Elements(XName.Get("node", Namespace)).ToList();
foreach (var node in nodes)
{
//se é um bone
if (node.Attribute("type") != null &&
node.Attribute("type").Value.Contains("JOINT"))
{
Matrix matrix = Matrix.Identity;
//pega o nome e a matrix do bone
string boneName = node.Attribute("name").Value;
string boneId = node.Attribute("id").Value;
string sid = node.Attribute("sid").Value;
XElement matrixElement = node.Element(XName.Get("matrix", Namespace));
string matrixSID = null;
if (matrixElement.Attribute("sid") != null)
matrixSID = matrixElement.Attribute("sid").Value; //uso nas animacoes para achar o bone id/sid
matrix = Tools.ConvertStringToMatrix(matrixElement.Value, 0);
// Create this node, use the current number of bones as number.
AMT_JOINT newBone = new AMT_JOINT();
newBone.SID = sid;
newBone.TARGET = boneId + "/" + matrixSID;
newBone.ID = (uint)amtModel.Joints.Count();
newBone.ParentID = (int)parentBone.ID;
newBone.Name = boneName;
newBone.NumChildren = 0;
newBone.JointChildren = new List<uint>();
newBone.NumKF = 0;
newBone.KFData = new List<AMT_KF>();
newBone.IsAnimated = (uint)(string.IsNullOrEmpty(matrixSID) ? 0 : 1);
newBone.Flag = 0;
//atualiza o bone pai
parentBone.NumChildren++;
parentBone.JointChildren.Add(newBone.ID);
//matrix relativa
newBone.BindMatrix = matrix;
//absoluta = relativa do atual * absoluta do pai
newBone.MatrixAbsolute = matrix * parentBone.MatrixAbsolute;
//inversa da matriz relativa
newBone.InverseBindMatrix = Matrix.Invert(newBone.MatrixAbsolute);
amtModel.Joints.Add(newBone);
// vai para os filhos
FillBoneNodes(ref newBone, node, ref amtModel);
}
}
}
private void WriteMaterials(BinaryWriter bw, AMT_MODEL model)
{
List<AMT_MATERIAL> materials = model.Materials;
for (int i = 0; i < materials.Count; i++)
{
char[] name = Tools.GetCharArray(materials[i].Name, 64);
bw.Write(name);
_import.ProgressText = "Exporting Materials " + materials[i].Name;
WriteVector(bw, materials[i].Ambient);
WriteVector(bw, materials[i].Diffuse);
WriteVector(bw, materials[i].Specular);
WriteVector(bw, materials[i].Emissive);
bw.Write(materials[i].SpecularPower);
bw.Write(materials[i].Transparency);
char[] diffuseTexture = Tools.GetCharArray(materials[i].DiffuseTexture, 64);
bw.Write(diffuseTexture);
char[] specularTexture = Tools.GetCharArray(materials[i].SpecularTexture, 64);
bw.Write(specularTexture);
char[] normalTexture = Tools.GetCharArray(materials[i].NormalTexture, 64);
bw.Write(normalTexture);
char[] animatedTexture = Tools.GetCharArray(materials[i].AnimatedTexture, 64);
bw.Write(animatedTexture);
bw.Write(materials[i].Flag);
}
}