Assimp, l'objet importé ne s'affiche pas.

Bonjour,
Voila je n'arrive pas à afficher l'objet importé :/ voici mon code. Est ce que quelqu'un peut m'aider?
Juste me dire si le code dans le fichier model.cpp est bon ou pas?

Model.cpp

Code:

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#ifdef _WIN32 #include <Seed\Graphics\model.hpp> #else #include <Seed/Graphics/model.hpp> #endif   Model::~Model() { //free VBO and VAO glDeleteBuffers(1, &VBO_vertices); glDeleteBuffers(1, &VBO_normals); glDeleteBuffers(1, &VBO_tangents); glDeleteBuffers(1, &VBO_coordText); glDeleteBuffers(1, &VBO_faces); glDeleteVertexArrays(1, &VAO); glDisableVertexAttribArray(0); glDisableVertexAttribArray(1); glDisableVertexAttribArray(2); glDisableVertexAttribArray(3); } Model::Model(const aiMesh *mesh) { unsigned int i = 0; this->m_numVertices = mesh->mNumVertices; int size = 0; //size of datas if (mesh->HasPositions()) { size = mesh->mNumVertices * sizeof(glm::vec3); } if (mesh->HasTangentsAndBitangents()) { size += (mesh->mNumVertices * sizeof(glm::vec3)); } if (mesh->HasTextureCoords(0)) { size += (mesh->mNumVertices * sizeof(glm::vec2)); } if (mesh->HasNormals()) { size += (mesh->mNumVertices * sizeof(glm::vec3)); }   //copy datas try { for (i = 0; i < this->m_numVertices; i++) { if (mesh->HasPositions()) { //copy vertices this->m_vertices.push_back(glm::vec3(mesh->mVertices[i].x, mesh->mVertices[i].y, mesh->mVertices[i].z)); } if (mesh->HasTangentsAndBitangents()) { //copy tangents this->m_tangents.push_back(glm::vec3(mesh->mTangents[i].x, mesh->mTangents[i].y, mesh->mTangents[i].z)); } if (mesh->HasTextureCoords(0)) { //copy texture coordinates this->m_textCoords.push_back(glm::vec2(mesh->mTextureCoords[0][i].x, mesh->mTextureCoords[0][i].y)); } if (mesh->HasNormals()) { //copy normals this->m_normals.push_back(glm::vec3(mesh->mNormals[i].x, mesh->mNormals[i].y, mesh->mNormals[i].z)); } } if (mesh->HasFaces()) { for (i = 0; i < mesh->mNumFaces; i++) { //copy faces this->m_faces.push_back(glm::ivec3(mesh->mFaces[i].mIndices[0], mesh->mFaces[i].mIndices[1], mesh->mFaces[i].mIndices[2])); } } } catch (std::out_of_range &) { printf("ERROR: Out of range of array in file model.cpp\n"); return; } catch (std::exception &) { printf("ERROR: error in model.cpp file\n"); return; }   this->m_indexMaterial = mesh->mMaterialIndex;   if (mesh->HasFaces()) { glGenBuffers(1, &VBO_faces); //bind buffer for faces glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, VBO_faces); //allocate memoty for the faces glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->m_faces.size() * sizeof(glm::vec3), 0, GL_STATIC_DRAW); //put the faces in the buffer glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, this->m_faces.size() * sizeof(glm::vec3), &m_faces[0]); }   //taille vertices in bytes int verticesBytes = this->m_vertices.size() * sizeof(glm::vec3);     if (mesh->HasPositions()) { //Put the datas' mesh in a VBOBuffer glGenBuffers(1, &VBO_vertices); //bind buffer VBO for datas glBindBuffer(GL_ARRAY_BUFFER, VBO_vertices); glBufferData(GL_ARRAY_BUFFER, verticesBytes, 0, GL_STATIC_DRAW); //copy data in GPU memory glBufferSubData(GL_ARRAY_BUFFER, 0, verticesBytes, &m_vertices[0]); }   if (mesh->HasNormals()) { //Put the datas' mesh in a VBOBuffer glGenBuffers(1, &VBO_normals); //bind buffer VBO for datas glBindBuffer(GL_ARRAY_BUFFER, VBO_normals); glBufferData(GL_ARRAY_BUFFER, verticesBytes, 0, GL_STATIC_DRAW); //copy data in GPU memory glBufferSubData(GL_ARRAY_BUFFER, 0, verticesBytes, &m_normals[0]); } if (mesh->HasTangentsAndBitangents()) { //Put the datas' mesh in a VBOBuffer glGenBuffers(1, &VBO_tangents); //bind buffer VBO for datas glBindBuffer(GL_ARRAY_BUFFER, VBO_tangents); glBufferData(GL_ARRAY_BUFFER, verticesBytes, 0, GL_STATIC_DRAW); //copy data in GPU memory glBufferSubData(GL_ARRAY_BUFFER, 0, verticesBytes, &m_tangents[0]); } if (mesh->HasTextureCoords(0)) { //Put the datas' mesh in a VBOBuffer glGenBuffers(1, &VBO_coordText); //bind buffer VBO for datas glBindBuffer(GL_ARRAY_BUFFER, VBO_coordText); glBufferData(GL_ARRAY_BUFFER, m_textCoords.size() * sizeof(glm::vec2), 0, GL_STATIC_DRAW); //copy data in GPU memory glBufferSubData(GL_ARRAY_BUFFER, 0, this->m_textCoords.size() * sizeof(glm::vec2), &m_textCoords[0]); }   //generate a VAO buffer glGenVertexArrays(1, &VAO); //bind VAO glBindVertexArray(VAO);   //specify to opengl where is the data //the position if (this->m_vertices.size()) { glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(glm::vec3), 0); glEnableVertexAttribArray(0); } if (this->m_normals.size()) { glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(glm::vec3), 0); glEnableVertexAttribArray(1); } if (this->m_tangents.size()) { glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, sizeof(glm::vec3), 0); glEnableVertexAttribArray(2); } if (this->m_textCoords.size()) { glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, sizeof(glm::vec2), 0); glEnableVertexAttribArray(3); } //free VBO glBindBuffer(GL_ARRAY_BUFFER, 0); //free VAO glBindVertexArray(0); }   void Model::render() { //bind VAO glBindVertexArray(VAO); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, VBO_faces); glDrawRangeElements(GL_TRIANGLES, 0, this->m_faces.size() * 3, this->m_faces.size() * 3, GL_UNSIGNED_INT, 0); //glDrawElements(GL_TRIANGLES, this->m_faces.size(), GL_UNSIGNED_INT, 0); //glDrawArrays(GL_TRIANGLES, 0, this->m_faces.size()); //free VAO glBindVertexArray(0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); }   void Model::afficher() { std::cout << "Model : \n nb de vertices : " << this->m_vertices.size() << "\n nb de normales : " << this->m_normals.size() << "\n nb de tangents " << this->m_tangents.size() << "\n nb de text coord " << this->m_textCoords.size() << std::endl; }

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main.cpp

Code:

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#include <stdio.h> #include <stdlib.h> //* // Include GLEW. Always include it before gl.h and glfw.h #ifdef _WIN32 #include <GL\glew.h> #else #include <GL/glew.h> #endif   // Include GLFW #ifdef _WIN32 #include <GLFW\glfw3.h> #else #include <GLFW/glfw3.h> #endif   // Include GLM #ifdef _WIN32 #include <glm\glm.hpp> #include <glm\gtx\transform.hpp> #else #include <glm/glm.hpp> #include <glm/gtx/transform.hpp> #endif   #ifdef _WIN32 #include <Seed\Graphics\camera.hpp> #include <Seed\Graphics\texture.hpp> #include <Seed\Graphics\model.hpp> #include <Seed\Graphics\shader.hpp> #include <Seed\Graphics\control.hpp> #include <Seed\Graphics\Constant.hpp> #include <Seed\Graphics\Outils.hpp> #include <Seed\Graphics\scene.hpp>   #else #include <Seed/Graphics/camera.hpp> #include <Seed/Graphics/texture.hpp> #include <Seed/Graphics/model.hpp> #include <Seed/Graphics/shader.hpp> #include <Seed/Graphics/control.hpp> #include <Seed/Graphics/Constant.hpp> #include <Seed/Graphics/Outils.hpp> #include <Seed/Graphics/scene.hpp> #endif #include <time.h>   // Open a window and create its OpenGL context GLFWwindow* window; // (In the accompanying source code, this variable is global)   int Initialisation();   int main() {   //position of the camera glm::vec3 position = glm::vec3(0.0, 0.0, 5.0); //horizontal and vertical angle float WAngle = 3.14f; float HAngle = 0.0f; //field of view const float initFoV = 45.0f; float near = (float)0.1; float far = (float)100.0; //speed move direction (keyboard) float speed = 3.0f; //speed view direction (mouse) float mouseSpeed = 0.05f; //initialisation systeme if (Initialisation() != 0) return -1;   //captur keys glfwSetInputMode(window, GLFW_STICKY_KEYS, GL_TRUE);   //create scene Scene scene; //import model scene.importModelFromFile(pathToModels + "UVsphere.obj");   //create camera Camera camera(position, glm::vec3(0.0,0.0,0.0), glm::vec3(0.0,1.0,0.0), initFoV, WIDTH, HEIGHT, near, far); // Create and compile our GLSL program from the shaders GLuint programID = loadShaders(pathToShaders + "shader1\\VertexShader.hlsl",pathToShaders + "shader1\\FragmentShader.hlsl");//(pathToShaders + "\FragmentShader.hlsl").c_str()); //enable texturing glEnable(GL_TEXTURE_2D);   // Dark blue background glClearColor(0.0f, 0.0f, 0.4f, 0.0f);   /*GLuint VertexArrayID; glGenVertexArrays(1, &VertexArrayID); glBindVertexArray(VertexArrayID);   // Our vertices. Tree consecutive floats give a 3D vertex; Three consecutive vertices give a triangle. // A cube has 6 faces with 2 triangles each, so this makes 6*2=12 triangles, and 12*3 vertices static const GLfloat vertex_buffer_data[] = { -1.0f, -1.0f, -1.0f, // triangle 1 : begin -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, // triangle 1 : end 1.0f, 1.0f, -1.0f, // triangle 2 : begin -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, // triangle 2 : end 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f };   // Two UV coordinatesfor each vertex. They were created with Blender. You'll learn shortly how to do this yourself. static const GLfloat uv_buffer_data[] = { 0.000059f, 1.0f - 0.000004f, 0.000103f, 1.0f - 0.336048f, 0.335973f, 1.0f - 0.335903f, 1.000023f, 1.0f - 0.000013f, 0.667979f, 1.0f - 0.335851f, 0.999958f, 1.0f - 0.336064f, 0.667979f, 1.0f - 0.335851f, 0.336024f, 1.0f - 0.671877f, 0.667969f, 1.0f - 0.671889f, 1.000023f, 1.0f - 0.000013f, 0.668104f, 1.0f - 0.000013f, 0.667979f, 1.0f - 0.335851f, 0.000059f, 1.0f - 0.000004f, 0.335973f, 1.0f - 0.335903f, 0.336098f, 1.0f - 0.000071f, 0.667979f, 1.0f - 0.335851f, 0.335973f, 1.0f - 0.335903f, 0.336024f, 1.0f - 0.671877f, 1.000004f, 1.0f - 0.671847f, 0.999958f, 1.0f - 0.336064f, 0.667979f, 1.0f - 0.335851f, 0.668104f, 1.0f - 0.000013f, 0.335973f, 1.0f - 0.335903f, 0.667979f, 1.0f - 0.335851f, 0.335973f, 1.0f - 0.335903f, 0.668104f, 1.0f - 0.000013f, 0.336098f, 1.0f - 0.000071f, 0.000103f, 1.0f - 0.336048f, 0.000004f, 1.0f - 0.671870f, 0.336024f, 1.0f - 0.671877f, 0.000103f, 1.0f - 0.336048f, 0.336024f, 1.0f - 0.671877f, 0.335973f, 1.0f - 0.335903f, 0.667969f, 1.0f - 0.671889f, 1.000004f, 1.0f - 0.671847f, 0.667979f, 1.0f - 0.335851f };   srand(time(NULL)); static GLfloat color_buffer_data[12 * 3 * 3]; for (int i = 0; i < 12*3; i++) { color_buffer_data[i * 3] = (float)(rand() % 100) / 100.0; color_buffer_data[i * 3 + 1] = (float)(rand() % 100) / 100.0; color_buffer_data[i * 3 + 2] = (float)(rand() % 100) / 100.0; }   //id vertex VertexArrayID GLuint VertexBuffer; //on génère une adresse pointant vers un emplacement dans la mémoire du GPU //on génère 1 emplacement glGenBuffers(1, &VertexBuffer); //on bind l'emplacement glBindBuffer(GL_ARRAY_BUFFER, VertexBuffer); //on donne les vertex à openGL glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_buffer_data), vertex_buffer_data, GL_STATIC_DRAW);   //id du color vertexArrayID GLuint ColorBuffer; glGenBuffers(1, &ColorBuffer); glBindBuffer(GL_ARRAY_BUFFER, ColorBuffer); glBufferData(GL_ARRAY_BUFFER, sizeof(color_buffer_data), color_buffer_data, GL_STATIC_DRAW);   //id UV vertexArrayID GLuint UVBuffer; glGenBuffers(1, &UVBuffer); glBindBuffer(GL_ARRAY_BUFFER, UVBuffer); glBufferData(GL_ARRAY_BUFFER, sizeof(uv_buffer_data), uv_buffer_data, GL_STATIC_DRAW); */   glm::mat4 M = glm::mat4(1.0); //M = glm::translate(glm::mat4(1.0), glm::vec3(1.0, 0.0, 0.0)); glm::mat4 MVP = camera.getProjectionMatrix() * camera.getViewMatrix() * M;   // Get a handle for our "MVP" uniform. // Only at initialisation time. GLuint MatrixID = glGetUniformLocation(programID, "MVP"); GLuint TextureID = glGetUniformLocation(programID, "samplerTexture");   //chargement texture Texture t(pathToTextures + "texture2.bmp");   //Model model("Models/axe.obj");   double currentTime = 0, lastTime = 0; float deltaTime = 0; float FoV = initFoV; glm::vec3 direction; glm::vec3 up;   //main loop to render do { //get current time currentTime = glfwGetTime(); //update mouse control and keyboard control updateControl(window, WAngle, HAngle, mouseSpeed, deltaTime, speed, position , direction, up, initFoV, FoV); //update ViewMatrix camera.setViewMatrix(position, direction, up); //update Projection Matrix camera.setProjectionMatrix(FoV, WIDTH, HEIGHT, near, far); //update MVP matrix MVP = camera.getProjectionMatrix() * camera.getViewMatrix() * M;   // Clear the screen glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);   if(programID) { // Use our shader glUseProgram(programID); }   // Send our transformation to the currently bound shader, // in the "MVP" uniform // For each model you render, since the MVP will be different (at least the M part) glUniformMatrix4fv(MatrixID, 1, GL_FALSE, &MVP[0][0]);   /* //vertexs //on se place sur les vertices glEnableVertexAttribArray(0); glBindBuffer(GL_ARRAY_BUFFER, VertexBuffer); glVertexAttribPointer( 0,//canal 0 3,//la taille du vertex GL_FLOAT,//le type de données GL_FALSE,//est-ce que les données sont normalisée 0,//stride (void*)0//offset du buffer );     //couleurs //on se place sur les couleurs glEnableVertexAttribArray(1); //on bind le buffer glBindBuffer(GL_ARRAY_BUFFER, ColorBuffer);   //on attribue le buffer sur le canal 1 glVertexAttribPointer( 1,//canal 1 3,//la taille de la couleur GL_FLOAT,//le type de données GL_FALSE,//est-ce que les données sont normalisée 0,//stride (void*)0//offset du buffer );   //UV //on se place sur le canal pour les UV glEnableVertexAttribArray(2); glBindBuffer(GL_ARRAY_BUFFER, UVBuffer); glVertexAttribPointer( 2,//canal 0 2,//la taille du vertex GL_FLOAT,//le type de données GL_FALSE,//est-ce que les données sont normalisée 0,//stride (void*)0//offset du buffer ); */ //Enable culling triangles which normal is not towards the camera glEnable(GL_CULL_FACE); // Enable depth test glEnable(GL_DEPTH_TEST); // Accept fragment if it closer to the camera than the former one glDepthFunc(GL_LESS);   scene.getRootNode()->render();   //t.bind(); //glUniform1i(TextureID, 0); //draw Arrays! //glDrawArrays(GL_TRIANGLES, 0, 12*3);//on part du vertex0 et il y en a trois //t.release(); /*glBindBuffer(GL_ARRAY_BUFFER, 0); glDisableVertexAttribArray(0); glDisableVertexAttribArray(1); glDisableVertexAttribArray(2);*/   //on nettoie les buffers glfwSwapBuffers(window); glfwPollEvents();   //get current time lastTime = glfwGetTime(); //time between 2 frames deltaTime = float(lastTime - currentTime);     } while (glfwGetKey(window, GLFW_KEY_ESCAPE) != GLFW_PRESS && glfwWindowShouldClose(window) == 0);   // Cleanup VBO /*glDeleteBuffers(1, &VertexBuffer); glDeleteBuffers(1, &ColorBuffer); glDeleteVertexArrays(1, &VertexArrayID);*/ glDeleteProgram(programID);   // Close OpenGL window and terminate GLFW glfwTerminate(); return 0; }   int Initialisation() { // Initialise GLFW if (!glfwInit()) { fprintf(stderr, "Failed to initialize GLFW\n"); return -1; } glfwWindowHint(GLFW_SAMPLES, 4); // 4x antialiasing glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4); // We want OpenGL 4.3 glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // To make MacOS happy; should not be needed glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); //We don't want the old OpenGL   window = glfwCreateWindow(WIDTH, HEIGHT, "Moteur3d", NULL, NULL); if (window == NULL){ fprintf(stderr, "Failed to open GLFW window. If you have an Intel GPU, they are not 3.3 compatible. Try the 2.1 version of the tutorials.\n"); glfwTerminate(); return -1; } glfwMakeContextCurrent(window); // Initialize GLEW glewExperimental = true; // Needed in core profile if (glewInit() != GLEW_OK) { fprintf(stderr, "Failed to initialize GLEW\n"); return -1; } return 0; }

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Je vous remercie d'avance

Bonjour,

Pour corriger votre souci, je serai de l'avis d'utiliser un traceur d'appel OpenGL (glTrace ou un truc similaire). Ou si vous voulez tout faire dans votre code, de rajouter des appels à glGetError() ou d'utiliser l'extension de débogage (KHR_debug).

De plus :

Code:

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#ifdef _WIN32 #include <Seed\Graphics\model.hpp> #else #include <Seed/Graphics/model.hpp> #endif

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Microsoft accepte normalement pleinement les '/' dans les chemins. Donc pas besoin d'avoir cette condition.

Merci pour votre réponse. Je vais essayer ce que vous dites. Je ne le savais pas pour windows pour les chemins relatifs. Je reposterai pour dire ce qui ne va pas.

RE:
Voici les buffers de points normals et faces. Ce sont les données représentant un cube.
Pièce jointe 187800Pièce jointe 187799Pièce jointe 187798

Est-ce normal pour les indices des faces??

Je pense oui. Mais, il n'y a pas d'erreur OpenGL ?

J'ai honte de le dire, mais le code est tout à fait correct finalement. C'était une erreur de mise à jour de la matrice MVP. Je vous remercie quand même pour votre aide, c'a m'a permis de connaitre le debugger gDebugger qui est très sympa pour voir ce qui se passe un peu dans le GPU.