BONES

A5/Animation/animate.frag

@@ -5,6 +5,8 @@ layout(location = 0) out vec3 color;
 in vec3 vCamPosition;
 in vec3 vCamNormal;
 in vec2 vUV;
+in vec4 debugout;
+
 
 uniform sampler2D colorTexture;
 uniform vec3 LightPos;
@@ -40,6 +42,7 @@ vec3 phong(vec3 lightPos){
 void main(void)
 {
     color = phong(LightPos);
+    //color = debugout.xyz;
     //color = texture2D(colorTexture,vUV).xyz;
 }
 

A5/Animation/animate.vert

@@ -2,27 +2,44 @@
 layout(location = 0) in vec3 Position;
 layout(location = 1) in vec3 Normal;
 layout(location = 2) in vec2 UV;
-layout(location = 2) in ivec4 BoneIDs;
-layout(location = 2) in vec4 Weights;
+layout(location = 3) in ivec4 BoneIDs;
+layout(location = 4) in vec4 Weights;
 
 
 out vec3 vCamPosition;
 out vec3 vCamNormal;
 out vec2 vUV;
+out vec4 debugout;
 
 uniform mat4x4 MV;
 uniform mat4x4 MVP;
 uniform mat3x3 N;
 
+uniform mat4x4 Bones[100];
 
 void main(void)
 {
-    vCamPosition = vec4(MV*vec4(Position,1.0)).xyz;
+
+    debugout = vec4(BoneIDs)/60;
+    debugout = Weights;
+    //debugout = vec4(1);
+
+    mat4x4 BoneTransform = Bones[BoneIDs[0]] * Weights[0];
+    BoneTransform     += Bones[BoneIDs[1]] * Weights[1];
+    BoneTransform     += Bones[BoneIDs[2]] * Weights[2];
+    BoneTransform     += Bones[BoneIDs[3]] * Weights[3];
+
+
+    vec4 Pos = BoneTransform*vec4(Position,1.0);
+
+    //Pos = vec4(Position,1.0);
+
+    vCamPosition = vec4(MV*Pos).xyz;
     vCamNormal = N*Normal;
     vUV = UV;
 
 
-    gl_Position = MVP * vec4(Position,1.0);
+    gl_Position = MVP * Pos;
 
 
 }

A5/Animation/mesh.cpp

 #include "mesh.h"
 
 void Vertex::AddBoneData(uint BoneID, float Weight){
+
     for (int i = 0 ; i < 4 ; i++) {
         if (weights[i] == 0.0) {
             IDs[i]     = BoneID;
             weights[i] = Weight;
+            //qDebug()<<"Add"<<i<<BoneID<<Weight<<pos;
             return;
         }
     }
-    qCritical()<<"More tahn 4 Bones at Vertex";
+    qCritical()<<"More tahn 4 Bones at Vertex"<<pos<<BoneID<<Weight<<"added:"
+              <<IDs[0]<<weights[0]<<IDs[1]<<weights[1]<<IDs[2]<<weights[2]<<IDs[3]<<weights[3];
 }
 
 Mesh::MeshEntry::MeshEntry()
@@ -64,8 +67,9 @@ Mesh::Mesh(QOpenGLFunctions_4_3_Core *f,QString fileName)
 {
     loaded = false;
     this->f =f;
-    Assimp::Importer importer;
-    this->scene= importer.ReadFile(fileName.toStdString(),
+    numberOfBones = 0;
+    scene = NULL;
+    scene= importer.ReadFile(fileName.toStdString(),
                                    //aiProcess_CalcTangentSpace |
                                    aiProcess_GenSmoothNormals |
                                    //aiProcess_JoinIdenticalVertices |
@@ -73,6 +77,7 @@ Mesh::Mesh(QOpenGLFunctions_4_3_Core *f,QString fileName)
                                    // ? aiProcess_FlipUVs |
                                    aiProcess_Triangulate
                                    );
+
     qDebug()<<"File Read";
     if( !scene)
     {
@@ -101,6 +106,7 @@ Mesh::Mesh(QOpenGLFunctions_4_3_Core *f,QString fileName)
             for (int i = 0 ; i < entries.size() ; i++) {
                 aiMesh* meshEntry = scene->mMeshes[i];
                 initMeshEntry(i, meshEntry);
+
             }
         } else{
             qWarning()<<"No Mesh found";
@@ -115,7 +121,7 @@ Mesh::Mesh(QOpenGLFunctions_4_3_Core *f,QString fileName)
         //TODO init Nodes
         if(scene->mRootNode != NULL)
         {
-            initNode(scene, scene->mRootNode, rootNode);
+            initNode(scene, scene->mRootNode, rootNode, QString());
         } else {
             rootNode.transformation.setToIdentity();
             rootNode.children.resize(0);
@@ -139,25 +145,30 @@ Mesh::Mesh(QOpenGLFunctions_4_3_Core *f,QString fileName)
     }
 }
 
-void Mesh::initNode(const aiScene *scene, aiNode *node, Node &newNode){
+void Mesh::initNode(const aiScene *scene, aiNode *node, Node &newNode,QString debugoffset){
     newNode.name = node->mName.length != 0 ? node->mName.C_Str() : "";
     newNode.transformation = QMatrix4x4(node->mTransformation[0]);
     newNode.meshes.resize(node->mNumMeshes);
+    bool debug = false;
+    if(debug) qDebug()<<debugoffset.toStdString().c_str() << "NodeName" << newNode.name;
+    if(boneMap.find(newNode.name) != boneMap.end()){
+       if(debug)  qDebug()<<debugoffset.toStdString().c_str() << "hasBone";
+    }
 
-    qDebug() << "NodeName" << newNode.name;
-    qDebug() << "  NumMeshes" << newNode.meshes.size();
+    if(debug) qDebug()<<debugoffset.toStdString().c_str() << "  NumMeshes" << newNode.meshes.size();
 
     for(uint i = 0; i < node->mNumMeshes; ++i)
     {
         newNode.meshes[i] = node->mMeshes[i];
-        qDebug() << "    MeshName" << entries[newNode.meshes[i]].name;
+        if(debug) qDebug()<<debugoffset.toStdString().c_str() << "    MeshName" << entries[newNode.meshes[i]].name;
     }
 
-    qDebug() << "  NumChildren" << node->mNumChildren;
+    if(debug) qDebug()<<debugoffset.toStdString().c_str() << "  NumChildren" << node->mNumChildren;
+    QString newDebug = QString(debugoffset).append("    ");
     for(uint i = 0; i < node->mNumChildren; ++i)
     {
         newNode.children.push_back(Node());
-        initNode(scene, node->mChildren[i], newNode.children[i]);
+        initNode(scene, node->mChildren[i], newNode.children[i],newDebug);
     }
 
 }
@@ -232,11 +243,126 @@ void Mesh::initMeshEntry(int index, aiMesh * entry){
         Indices.push_back(face.mIndices[2]);
     }
 
-    entries[index].init(f,Vertices, Indices);
-    entries[index].name = entry->mName.length != 0 ? entry->mName.C_Str() : "";
 
+    entries[index].name = entry->mName.length != 0 ? entry->mName.C_Str() : "";
     entries[index].materialIndex = entry->mMaterialIndex;
+
     qDebug()<<"Loaded Mesh:"<<entries[index].name;
+
+    if(entry->HasBones()){
+        for(uint i = 0; i< entry->mNumBones; i++){
+            int index = 0;
+            QString BoneName = QString(entry->mBones[i]->mName.data);
+
+            if (boneMap.find(BoneName) == boneMap.end()) {
+                // Allocate an index for a new bone
+                index = numberOfBones;
+                numberOfBones++;
+                BoneInfo bi;
+                bones.push_back(bi);
+                bones[index].BoneOffset = QMatrix4x4(entry->mBones[i]->mOffsetMatrix[0]);
+                boneMap[BoneName] = index;
+            }
+            else {
+                index = boneMap[BoneName];
+            }
+
+            for (uint j = 0 ; j < entry->mBones[i]->mNumWeights ; j++) {
+                uint VertexID = entry->mBones[i]->mWeights[j].mVertexId;
+                float Weight  = entry->mBones[i]->mWeights[j].mWeight;
+                Vertices[VertexID].AddBoneData(index, Weight);
+            }
+
+        }
+    }
+
+    entries[index].init(f,Vertices, Indices);
+
+}
+
+void Mesh::updateBoneTransform(float TimeInSeconds){
+    if(!scene)
+        return;
+    const aiAnimation* animation = scene->mAnimations[0];
+    //TODO calc time and get Anaimation;
+    updateBoneHeirachy(0.0,animation,this->rootNode,QMatrix4x4());
+
+
+
+}
+
+
+void Mesh::updateBoneHeirachy(float AnimTime,const aiAnimation* animation, Node node, QMatrix4x4 parentTransform){
+
+    QMatrix4x4 nodeTransformation = node.transformation;
+
+
+    //Find channel
+    const aiNodeAnim *nodeAnimation = findAnimOfNode(animation,node.name);
+
+    //calc Tcurrent Trasnformation;
+    if (nodeAnimation) {
+
+        QVector3D scale = calcInterpolatedScaling(AnimTime,nodeAnimation);
+        QQuaternion rot = calcInterpolatedRotation(AnimTime,nodeAnimation);
+        QVector3D trans = calcInterpolatedTranslation(AnimTime,nodeAnimation);
+        //qDebug()<<"calc"<<scale<<rot<<trans;
+
+        nodeTransformation.setToIdentity();
+        nodeTransformation.translate(trans);
+        nodeTransformation.rotate(rot);
+        nodeTransformation.scale(scale);
+    }
+
+
+    //Update Bone and children
+    QMatrix4x4 GlobalTransform = parentTransform * nodeTransformation;
+
+    if (boneMap.find(node.name) != boneMap.end()) {
+        int index = boneMap[node.name];
+        bones[index].FinalTransformation = globalInverseTransform * GlobalTransform * bones[index].BoneOffset;
+    }
+
+    for(int i = 0; i < node.children.size(); ++i)
+    {
+        updateBoneHeirachy(AnimTime,animation,node.children[i],GlobalTransform);
+    }
+
+}
+
+
+const aiNodeAnim* Mesh::findAnimOfNode(const aiAnimation* animation, QString NodeName){
+    for (uint i = 0 ; i < animation->mNumChannels ; i++) {
+        const aiNodeAnim* nodeanim = animation->mChannels[i];
+
+        if (QString(nodeanim->mNodeName.data) == NodeName) {
+            return nodeanim;
+        }
+    }
+
+    return NULL;
+}
+
+
+QVector3D Mesh::calcInterpolatedScaling(float AnimTime,const aiNodeAnim *nodeAnimation){
+    int index = nodeAnimation->mNumScalingKeys/2;
+    //index = 0;
+    aiVector3D scale = nodeAnimation->mScalingKeys[index].mValue;
+    return QVector3D(scale.x,scale.y,scale.z);
+}
+
+QQuaternion Mesh::calcInterpolatedRotation(float AnimTime,const aiNodeAnim *nodeAnimation){
+    int index = nodeAnimation->mNumRotationKeys/2;
+   // index = 0;
+    aiQuaternion quat = nodeAnimation->mRotationKeys[index].mValue;
+     return QQuaternion(quat.w,quat.x,quat.y,quat.z);
+}
+
+QVector3D Mesh::calcInterpolatedTranslation(float AnimTime, const aiNodeAnim *nodeAnimation){
+    int index = nodeAnimation->mNumScalingKeys/2;
+   // index = 0;
+     aiVector3D pos = nodeAnimation->mPositionKeys[index].mValue;
+    return QVector3D(pos.x,pos.y,pos.z);
 }
 
 
@@ -254,10 +380,15 @@ void Mesh::render(QOpenGLShaderProgram *shader, QMatrix4x4 V,QMatrix4x4 P){
     f->glEnableVertexAttribArray(boneIndex);
     f->glEnableVertexAttribArray(boneweightIndex);
 
-    QMatrix4x4 M;
-    M.setToIdentity();
 
-    renderNode(shader,rootNode,V,P,M);
+    updateBoneTransform(0.0);
+    QVector<QMatrix4x4> boneTransforms = QVector<QMatrix4x4>(bones.size());
+    for(int i = 0; i < bones.size(); i++){
+        boneTransforms[i] = bones[i].FinalTransformation;
+    }
+    shader->setUniformValueArray("Bones",boneTransforms.constData(),bones.size());
+
+    renderNode(shader,rootNode,V,P,QMatrix4x4());
 
 
     f->glDisableVertexAttribArray(positionIndex);
@@ -309,10 +440,10 @@ void Mesh::renderMesh(QOpenGLShaderProgram *shader, int index)
     // Draw Vertex Array
     f->glBindBuffer(GL_ARRAY_BUFFER, entries[index].VB);
     f->glVertexAttribPointer(positionIndex, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), 0);
-    f->glVertexAttribPointer(normalIndex, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)12); //3*4
-    f->glVertexAttribPointer(uvIndex, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)24); //(3+3)*4
-    f->glVertexAttribIPointer(boneIndex, 4, GL_INT, sizeof(Vertex), (const GLvoid*)32); //(3+3+2)*4
-    f->glVertexAttribPointer(boneweightIndex, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)48); //(3+3+2+4)*4
+    f->glVertexAttribPointer(normalIndex, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)12); //12
+    f->glVertexAttribPointer(uvIndex, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)24); // 12+12
+    f->glVertexAttribIPointer(boneIndex, 4, GL_INT, sizeof(Vertex), (const GLvoid*)32); // 12+12+8
+    f->glVertexAttribPointer(boneweightIndex, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)48); //12+12+8+16
 
     f->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, entries[index].IB);
     f->glDrawElements(GL_TRIANGLES, entries[index].numIndex, GL_UNSIGNED_INT, 0);

A5/Animation/mesh.h

@@ -23,15 +23,14 @@ struct Vertex
     uint IDs[4];
     float weights[4];
 
-    Vertex() {
+    Vertex(){}
+
+    Vertex(const QVector3D& pos, const QVector3D& normal, const QVector2D& tex)
+    {
         for(int i = 0; i < 4; i++){
             IDs[i] = 0;
             weights[i] = 0;
         }
-    }
-
-    Vertex(const QVector3D& pos, const QVector3D& normal, const QVector2D& tex)
-    {
         this->pos    = pos;
         this->tex    = tex;
         this->normal = normal;
@@ -86,6 +85,18 @@ private:
         QVector3D Intensity;
     };
 
+    struct BoneInfo
+    {
+        QMatrix4x4 BoneOffset;
+        QMatrix4x4 FinalTransformation;
+
+        BoneInfo()
+        {
+            BoneOffset.setToIdentity();
+            FinalTransformation.setToIdentity();
+        }
+    };
+
     struct Node
     {
         Node();
@@ -96,18 +107,33 @@ private:
     };
 
     const aiScene *scene;
+    Assimp::Importer importer;
     QMatrix4x4 globalInverseTransform;
 
 
     QVector<MeshEntry> entries;
     QVector<MaterialInfo> materials;
+
+    QVector<BoneInfo> bones;
+    QMap<QString,int> boneMap;
+    int numberOfBones;
+
     Node rootNode;
     QOpenGLFunctions_4_3_Core *f;
     bool loaded;
 
     void initMeshEntry(int i,aiMesh * entry);
     void initMaterial(QString dir, unsigned int i, const aiMaterial* material);
-    void initNode(const aiScene *scene, aiNode *node, Node &newNode);
+    void initNode(const aiScene *scene, aiNode *node, Node &newNode, QString debugoffset);
+
+    void updateBoneTransform(float TimeInSeconds);
+    void updateBoneHeirachy(float AnimTime,const aiAnimation* animation, Node node, QMatrix4x4 parentTransform);
+    const aiNodeAnim *findAnimOfNode(const aiAnimation* animation, QString NodeName);
+
+    QVector3D calcInterpolatedScaling(float AnimTime,const aiNodeAnim *nodeAnimation);
+    QQuaternion calcInterpolatedRotation(float AnimTime,const aiNodeAnim *nodeAnimation);
+    QVector3D calcInterpolatedTranslation(float AnimTime, const aiNodeAnim *nodeAnimation);
+
 
     void renderNode(QOpenGLShaderProgram *shader, Node &node, QMatrix4x4 V,QMatrix4x4 P,QMatrix4x4 M);
     void renderMesh(QOpenGLShaderProgram *shader, int index);