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| GameObject* ModelLoader::loadModel(std::string path, bool loadTextures) {
//std::cout<<"load model : "<<path<<std::endl;
Model* model = new Model(math::Vec3f(0.f, 0.f, 0.f), math::Vec3f(0.f, 0.f, 0.f),math::Vec3f(0.f, 0.f, 0.f), "E_MODEL");
Assimp::Importer importer;
//std::cout<<"import"<<std::endl;
const aiScene *scene = importer.ReadFile(path, aiProcess_Triangulate |
/*aiProcess_JoinIdenticalVertices |
aiProcess_SortByPType |
aiProcess_GenNormals |
aiProcess_ImproveCacheLocality |
aiProcess_OptimizeMeshes |
aiProcess_OptimizeGraph |
aiProcess_GlobalScale |*/
aiProcess_FlipUVs);
//std::cout<<"imported"<<std::endl;
if(!scene || scene->mFlags & AI_SCENE_FLAGS_INCOMPLETE || !scene->mRootNode)
{
std::cerr << "ERROR::ASSIMP::" << importer.GetErrorString() << std::endl;
return model;
}
if(path.find("/") != std::string::npos)
directory = path.substr(0, path.find_last_of('/'));
else
directory = "";
math::Matrix4f transform;
transform.identity();
clk2.restart();
processNode(transform, scene->mRootNode, scene, model, loadTextures);
//Material::updateIds();
std::vector<ImageLoader> imageLoaders;
size_t totalImagesSize = 0;
for (unsigned int i = 0; i < textureManager.getAliases().size(); i++) {
std::string alias = textureManager.getAliases()[i];
ImageLoader imageLoader;
if (textureManager.getAliases()[i].length() > 0 && textureManager.getAliases()[i].at(0) == '*') {
//std::cout<<"load texture from memory!"<<std::endl;
int index = atoi(textureManager.getAliases()[i].data() + 1);
aiTexture* tex = scene->mTextures[index];
//std::cout<<"enqueue!"<<std::endl;
imageLoader.loadFromMemory(tex->pcData, tex->mWidth);
} else {
imageLoader.loadFromFile(alias);
}
/*std::cout << "Texture " << i
<<" size=" << imageLoaders[i].getDataSize()
<<" w=" << imageLoaders[i].getSize().x()
<<" h=" << imageLoaders[i].getSize().y()
<<" offset=" << dataOffset
<<" offset + size : "<<dataOffset+imageLoaders[i].getDataSize()
<<" total image size : "<<totalImagesSize.load()
<< std::endl;*/
Texture* texture = textureManager.getResourceByAlias(alias);
if (imageLoader.isCompressed()) {
texture->setFormat(imageLoader.getVkFormat());
} else {
texture->setFormat(VK_FORMAT_R8G8B8A8_SRGB);
}
texture->setSize(imageLoader.getSize());
texture->create(imageLoader.getSize().x(), imageLoader.getSize().y(),1, imageLoader.getMipLevels());
for (unsigned int j = 0; j < imageLoader.getMipLevels(); j++) {
totalImagesSize = (totalImagesSize + 15) & ~15;
totalImagesSize += imageLoader.getDataSize(j);
}
imageLoaders.push_back(imageLoader);
}
commandPool.beginRecordCommandBuffer(0);
staggingBuffer.create(totalImagesSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VMA_MEMORY_USAGE_CPU_ONLY);
std::size_t dataOffset = 0;
for (unsigned int i = 0; i < imageLoaders.size(); i++) {
//std::cout<<"compressée ? : "<<imageLoaders[i].isCompressed()<<std::endl;
for (unsigned int j = 0; j < imageLoaders[i].getMipLevels(); j++) {
// align offset to 16 bytes
/*for (unsigned int p = 0; p < imageLoaders[i].getDataSize(j); p++) {
std::cout<<"pixel : "<<(int)imageLoaders[i].getPixelsPtr(j)[p]<<std::endl;
}*/
dataOffset = (dataOffset + 15) & ~15;
staggingBuffer.update(imageLoaders[i].getPixelsPtr(j), imageLoaders[i].getDataSize(j), dataOffset);
textureManager.getResourceByAlias(textureManager.getAliases()[i])->update(commandPool, staggingBuffer, imageLoaders[i].getSize(j).x(), imageLoaders[i].getSize(j).y(), 0, 0, dataOffset, j);
/*std::cout << "mip " << j << " size = " << imageLoaders[i].getDataSize(j)
<< " offset : " << dataOffset << std::endl;*/
dataOffset += imageLoaders[i].getDataSize(j);
}
}
commandPool.endRecordCommandBuffer(0);
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandPool.getHandle(0);
Device::QueueFamilyIndices indices = device.findQueueFamilies(device.getPhysicalDevice());
if (vkQueueSubmit(device.getQueue(indices.graphicsFamily.value(), 0), 1, &submitInfo, VK_NULL_HANDLE) != VK_SUCCESS) {
throw std::runtime_error("Echec de l'envoi d'un command buffer!");
}
vkDeviceWaitIdle(device.getDevice());
std::cout<<"scene loading time : "<<clk2.getElapsedTime().asMilliseconds()<<"ms"<<std::endl;
return model;
}
void ModelLoader::processNode(math::Matrix4f parentTransform, aiNode *node, const aiScene *scene, Model* model, bool loadTextures)
{
//std::cout<<"process node"<<std::endl;
// process all the node's meshes (if any)
math::Matrix4f nodeLocal = AssimpHelpers::convertAssimpToODFAEGMatrix(node->mTransformation);
math::Matrix4f world = parentTransform * nodeLocal;
//std::cout<<"parent : "<<parentTransform<<std::endl<<"node : "<<nodeLocal<<std::endl;
//std::cout<<"nb meshes to load : "<<node->mNumMeshes<<std::endl;
clk.restart();
jobFence.reset(node->mNumMeshes);
for(unsigned int i = 0; i < node->mNumMeshes; i++)
{
aiMesh *mesh = scene->mMeshes[node->mMeshes[i]];
threadPool.enqueue([this, world, mesh, node, scene, model, loadTextures] {
processMesh(world, node, mesh, scene, model, loadTextures);
jobFence.jobDone();
});
}
jobFence.wait();
//std::cout<<"loading meshes time : "<<clk.getElapsedTime().asMilliseconds()<<"ms"<<std::endl;
// then do the same for each of its children
for(unsigned int i = 0; i < node->mNumChildren; i++)
{
processNode(world, node->mChildren[i], scene, model, loadTextures);
}
}
void ModelLoader::processMesh(math::Matrix4f world, aiNode* node, aiMesh *mesh, const aiScene *scene, Model* model, bool loadTextures) {
//world = world.transpose();
//std::lock_guard<std::recursive_mutex> lock(rec_mutex);
SubMesh subMesh(device);
for (unsigned int i = 0; i < Material::NBTEXTYPES; i++)
subMesh.getMaterial().setTexture(nullptr, static_cast<Material::TexType>(i));
if(mesh->mMaterialIndex >= 0) {
//std::cout<<"load materials"<<std::endl;
aiMaterial *material = scene->mMaterials[mesh->mMaterialIndex];
if (loadTextures) {
std::vector<Texture*> diffuseMaps = loadMaterialTextures(scene, material,
aiTextureType_DIFFUSE);
for (unsigned int i = 0; i < diffuseMaps.size(); i++) {
subMesh.getMaterial().setTexture(diffuseMaps[i], Material::DIFFUSE, i);
}
std::vector<Texture*> specularMaps = loadMaterialTextures(scene, material,
aiTextureType_SPECULAR);
for (unsigned int i = 0; i < specularMaps.size(); i++) {
specularMaps[i]->setTexType(Material::SPECULAR);
subMesh.getMaterial().setTexture(specularMaps[i], Material::SPECULAR, i);
}
std::vector<Texture*> normalMaps = loadMaterialTextures(scene, material, aiTextureType_NORMALS);
for (unsigned int i = 0; i < normalMaps.size(); i++) {
//std::cout<<"normals"<<std::endl;
normalMaps[i]->setTexType(Material::NORMAL);
subMesh.getMaterial().setTexture(normalMaps[i], Material::NORMAL,i);
}
std::vector<Texture*> metalnessMaps = loadMaterialTextures(scene, material, aiTextureType_METALNESS);
for (unsigned int i = 0; i < metalnessMaps.size(); i++) {
//std::cout<<"metalness"<<std::endl;
metalnessMaps[i]->setTexType(Material::METALNESS);
subMesh.getMaterial().setTexture(metalnessMaps[i], Material::METALNESS, i);
}
std::vector<Texture*> roughnessMaps = loadMaterialTextures(scene, material, aiTextureType_DIFFUSE_ROUGHNESS);
for (unsigned int i = 0; i < roughnessMaps.size(); i++) {
//std::cout<<"roughness"<<std::endl;
roughnessMaps[i]->setTexType(Material::ROUGHNESS);
subMesh.getMaterial().setTexture(roughnessMaps[i], Material::ROUGHNESS, i);
}
std::vector<Texture*> aoMaps = loadMaterialTextures(scene, material, aiTextureType_AMBIENT_OCCLUSION);
for (unsigned int i = 0; i < aoMaps.size(); i++) {
//std::cout<<"ao"<<std::endl;
aoMaps[i]->setTexType(Material::AO);
subMesh.getMaterial().setTexture(aoMaps[i], Material::AO, i);
}
std::vector<Texture*> emissiveMaps = loadMaterialTextures(scene, material, aiTextureType_EMISSIVE);
for (unsigned int i = 0; i < emissiveMaps.size(); i++) {
//std::cout<<"emissive"<<std::endl;
emissiveMaps[i]->setTexType(Material::EMISSIVE);
subMesh.getMaterial().setTexture(emissiveMaps[i], Material::EMISSIVE, i);
}
}
}
int upAxis = 1;
int upSign = 1;
int frontAxis = 2; // default Z-forward
int frontSign = 1;
int coordAxis = 0; // default X-right
int coordSign = 1;
if (scene->mMetaData) {
scene->mMetaData->Get("UpAxis", upAxis);
scene->mMetaData->Get("UpAxisSign", upSign);
scene->mMetaData->Get("FrontAxis", frontAxis);
scene->mMetaData->Get("FrontAxisSign", frontSign);
scene->mMetaData->Get("CoordAxis", coordAxis);
scene->mMetaData->Get("CoordAxisSign", coordSign);
}
enum Axis { X = 0, Y = 1, Z = 2 };
Axis sceneUpAxis = (Axis)upAxis;
Axis sceneFrontAxis = (Axis)frontAxis;
Axis sceneCoordAxis = (Axis)coordAxis;
int sceneUpSign = upSign;
int sceneFrontSign = frontSign;
int sceneCoordSign = coordSign;
bool isLeftHandled = false;
//math::Matrix4f m = AssimpHelpers::convertAssimpToODFAEGMatrix(node->mTransformation);
float det = world.getDet();
bool isLeftHanded = false;
if (det > 0.0f) {
//std::cout<<"left handed!"<<std::endl;
isLeftHanded = true;
}
entity::TransformMatrix axisCorrection, handednessCorrection, scaleCorrection;
axisCorrection.reset();
handednessCorrection.reset();
scaleCorrection.reset();
// 1. Correction UP (Z-up → Y-up)
if (sceneUpAxis == Axis::Z) {
axisCorrection.setRotation(math::Vec3f(1.f,0.f,0.f), -90.f);
}
// 2. Correction FRONT (Y-forward → -Z-forward)
if (sceneFrontAxis == Axis::Y) {
axisCorrection.setRotation(math::Vec3f(0.f,0.f,1.f), 180.f);
}
// 3. Correction handedness
if (isLeftHanded) {
axisCorrection.setScale(math::Vec3f(1.f,1.f,-1.f));
}
//std::cout<<"materials loaded : "<<mat.getTexture()<<std::endl;
std::vector<Vertex> vertices;
vertices.resize(mesh->mNumVertices);
VertexBuffer vb(device, Triangles, MAX_FRAMES_IN_FLIGHT);
vb.resize(mesh->mNumVertices, 0);
/*unsigned int uvCount = 0;
for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; i++) {
if (mesh->mTextureCoords[i] != nullptr)
uvCount++;
}
std::cout<<"nb uvs : "<<uvCount<<std::endl;*/
for (unsigned int i = 0; i < mesh->mNumVertices; i++)
{
vertices[i].position[0] = mesh->mVertices[i].x;
vertices[i].position[1] = mesh->mVertices[i].y;
vertices[i].position[2] = mesh->mVertices[i].z;
if (mesh->mTextureCoords[0] && subMesh.getMaterial().getTexture(Material::DIFFUSE) != nullptr)
{
vertices[i].texCoords[0] = mesh->mTextureCoords[0][i].x/* * mat.getTexture()->getSize().x()*/;
vertices[i].texCoords[1] = mesh->mTextureCoords[0][i].y/* * mat.getTexture()->getSize().y()*/;
/*if (vertices[i].texCoords[0] == 0 && vertices[i].texCoords[1] == 0) {
std::cout<<"error!"<<std::endl;
}*/
/*std::cout<<"tex coords : "<<vertices[i].texCoords[0]<<std::endl;
std::cout<<"tex coords : "<<vertices[i].texCoords[1]<<std::endl;*/
} else {
vertices[i].texCoords = math::Vec2f(0.f, 0.f);
}
vertices[i].normal[0] = mesh->mNormals[i].x;
vertices[i].normal[1] = mesh->mNormals[i].y;
vertices[i].normal[2] = mesh->mNormals[i].z;
vb[i] = vertices[i];
}
physic::BoundingBox bounds = vb.getBounds();
if (bounds.getSize().x() > 1000 && bounds.getSize().y() > 1000 && bounds.getSize().z() > 1000) {
scaleCorrection.setScale(math::Vec3f(0.01f, 0.01f, 0.01f));
}
math::Matrix4f finalCorrection = scaleCorrection.getMatrix() *
axisCorrection.getMatrix() *
handednessCorrection.getMatrix();
math::Matrix4f finalTransform = world * finalCorrection;
//std::cout<<"final correction : "<<finalCorrection<<std::endl;
for (unsigned int i = 0; i < vb.getVertexCount(); i++) {
vb[i].position = finalTransform * vb[i].position;
vb[i].normal = finalCorrection * vb[i].normal;
//std::cout<<"vertex position : "<<vb[i].position<<std::endl;
}
for(unsigned int i = 0; i < mesh->mNumFaces; i++)
{
aiFace face = mesh->mFaces[i];
//std::cout<<"add face : "<<face.mNumIndices<<std::endl;
for(unsigned int j = 0; j < face.mNumIndices; j++) {
//std::cout<<"index : "<<face.mIndices[j]<<std::endl;
vb.addIndex(face.mIndices[j]);
}
}
subMesh.setVertexBuffer(vb);
std::lock_guard<std::recursive_mutex> lock(rec_mutex);
/*math::Vec3f center = vb.getBounds().getCenter();
math::Vec3f worldPos = finalTransform * center;
std::cout << "Mesh world pos = " << worldPos << std::endl;*/
//std::cout<<"vertices loaded"<<std::endl;
extractBoneWeightForVertices(vertices, mesh, scene, model);
//std::cout<<"bone loaded"<<std::endl;
//std::cout<<"vertices : "<<vb.getVertexCount()<<std::endl;
//std::cout<<"indexes : "<<vb.getIndexCount()<<std::endl;
/*if (mat.getTexture() == nullptr) {
std::cout<<"material id : "<<mat.getId()<<std::endl;
} else {
//std::cout<<"texture"<<std::endl;
}*/
model->addSubMesh(std::move(subMesh));
model->setSize(vb.getBounds().getSize());
} |
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