Adding textures capabilities
* Added Texures to the two sample cubes * Modified mesh structure - mesh now contains indices and vertices - Vertices contain vertices and uv's (later on they will also contain normals) Solution definitely not perfect and needs improvement.
This commit is contained in:
@ -1,47 +1,47 @@
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#include "Graphics/Buffer.h"
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int Buffer::getBufferID() {
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return id;
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}
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void Buffer::createBuffer() {
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glGenBuffers(1, (GLuint*) &id);
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}
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void Buffer::setBufferData(void* data, size_t dataSize, bool elementBuffer = false ) {
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if (elementBuffer) {
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, dataSize, data, GL_STATIC_DRAW);
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}
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else {
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glBufferData(GL_ARRAY_BUFFER, dataSize, data, GL_STATIC_DRAW);
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}
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}
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void Buffer::Bind(bool elementBuffer = false ) {
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if (elementBuffer) {
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id);
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}
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else {
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glBindBuffer(GL_ARRAY_BUFFER, id);
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}
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}
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void Buffer::Unbind(bool elementBuffer = false) {
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if (elementBuffer) {
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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}
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else {
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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}
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}
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void Buffer::Delete() {
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glDeleteBuffers(1, (GLuint*) &id);
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#include "Graphics/Buffer.h"
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int Buffer::getBufferID() {
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return id;
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}
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void Buffer::createBuffer() {
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glGenBuffers(1, (GLuint*) &id);
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}
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void Buffer::setBufferData(void* data, size_t dataSize, bool elementBuffer = false ) {
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if (elementBuffer) {
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, dataSize, data, GL_STATIC_DRAW);
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}
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else {
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glBufferData(GL_ARRAY_BUFFER, dataSize, data, GL_STATIC_DRAW);
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}
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}
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void Buffer::Bind(bool elementBuffer = false ) {
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if (elementBuffer) {
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id);
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}
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else {
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glBindBuffer(GL_ARRAY_BUFFER, id);
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}
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}
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void Buffer::Unbind(bool elementBuffer = false) {
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if (elementBuffer) {
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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}
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else {
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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}
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}
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void Buffer::Delete() {
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glDeleteBuffers(1, (GLuint*) &id);
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}
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@ -1,115 +1,133 @@
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#include "AssetManager/ModelImporter.h"
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void ModelImporter::ImportFBX(std::string path)
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{
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//spdlog::warn("ImportFBX not implemented!");
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}
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void ModelImporter::ImportBlend(std::string path)
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{
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//spdlog::warn("ImportBlend not implemented!");
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}
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void ModelImporter::ImportGLTF(std::string path)
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{
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//spdlog::warn("ImportGLTF not implemented!");
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}
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void ModelImporter::ImportOBJ(std::string path)
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{
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//spdlog::warn("ImportOBJ not implemented!");
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}
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void ModelImporter::Import(std::string path)
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{
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//spdlog::warn("Import not implemented!");
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}
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std::vector<BarinkEngine::Mesh> ModelImporter::Test() {
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/*
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spdlog::info("====== Tiny GLTF ======");
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tinygltf::Model loadedModel;
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tinygltf::TinyGLTF loader;
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std::string error;
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std::string warn;
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bool ret = loader.LoadASCIIFromFile(&loadedModel, &error, &warn, "./Build/SandboxApplication/Debug/sponza.gltf");
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if (!warn.empty())
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spdlog::warn("TinyGLTF Warning: {}", warn);
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if (!error.empty())
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spdlog::error("TinyGLTF Error: {}", error);
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if (!ret) {
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spdlog::error("TinyGLTF Error: Failed to parse glTF");
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exit(-1);
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}
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spdlog::info("Meshes in model: {}", loadedModel.meshes.size());
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spdlog::info("Primitives in mesh: {}", loadedModel.meshes[0].primitives.size());
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*/
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//spdlog::info("======= Assimp ======");
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Assimp::Importer importer;
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const aiScene* scene = importer.ReadFile("build/SandboxApplication/Debug/Cube.obj", aiProcess_Triangulate | aiProcess_FlipUVs);
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aiNode* currentNode = scene->mRootNode;
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return processNode(currentNode, scene);
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}
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std::vector<BarinkEngine::Mesh> ModelImporter::processNode(aiNode* node, const aiScene* scene) {
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std::vector<BarinkEngine::Mesh> meshes;
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for (unsigned int i = 0; i < node->mNumMeshes; i++) {
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aiMesh* mesh = scene->mMeshes[node->mMeshes[i]];
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meshes.push_back(processMesh(mesh, scene));
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}
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for (unsigned int i = 0; i < node->mNumChildren; i++) {
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auto m2 = processNode(node->mChildren[i], scene);
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for(auto m : m2) {
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meshes.push_back(m);
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}
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}
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return meshes;
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}
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BarinkEngine::Mesh ModelImporter::processMesh(aiMesh* mesh, const aiScene* scene) {
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std::vector<glm::vec3> vertices ;
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std::vector<unsigned int> indices;
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// Process vertices
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for (unsigned int i = 0; i < mesh->mNumVertices; i++) {
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glm::vec3 vector;
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vector.x = mesh->mVertices[i].x;
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vector.y = mesh->mVertices[i].y;
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vector.z = mesh->mVertices[i].z;
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vertices.push_back(vector);
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}
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// Process Indices
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for (unsigned int i = 0; i < mesh->mNumFaces; i++) {
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aiFace face = mesh->mFaces[i];
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if (face.mNumIndices < 3)
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continue;
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for (unsigned int j = 0; j < face.mNumIndices; j++) {
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indices.push_back(face.mIndices[j]);
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}
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}
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BarinkEngine::Mesh result;
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result.vertices = vertices;
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result.elements = indices;
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return result;
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#include "AssetManager/ModelImporter.h"
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void ModelImporter::ImportFBX(std::string path)
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{
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//spdlog::warn("ImportFBX not implemented!");
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}
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void ModelImporter::ImportBlend(std::string path)
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{
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//spdlog::warn("ImportBlend not implemented!");
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}
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void ModelImporter::ImportGLTF(std::string path)
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{
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//spdlog::warn("ImportGLTF not implemented!");
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}
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void ModelImporter::ImportOBJ(std::string path)
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{
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//spdlog::warn("ImportOBJ not implemented!");
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}
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void ModelImporter::Import(std::string path)
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{
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//spdlog::warn("Import not implemented!");
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}
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std::vector<BarinkEngine::Mesh> ModelImporter::Test() {
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/*
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spdlog::info("====== Tiny GLTF ======");
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tinygltf::Model loadedModel;
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tinygltf::TinyGLTF loader;
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std::string error;
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std::string warn;
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bool ret = loader.LoadASCIIFromFile(&loadedModel, &error, &warn, "./Build/SandboxApplication/Debug/sponza.gltf");
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if (!warn.empty())
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spdlog::warn("TinyGLTF Warning: {}", warn);
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if (!error.empty())
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spdlog::error("TinyGLTF Error: {}", error);
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if (!ret) {
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spdlog::error("TinyGLTF Error: Failed to parse glTF");
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exit(-1);
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}
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spdlog::info("Meshes in model: {}", loadedModel.meshes.size());
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spdlog::info("Primitives in mesh: {}", loadedModel.meshes[0].primitives.size());
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*/
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//spdlog::info("======= Assimp ======");
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Assimp::Importer importer;
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const aiScene* scene = importer.ReadFile("build/SandboxApplication/Debug/Cube.obj", aiProcess_Triangulate | aiProcess_FlipUVs);
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aiNode* currentNode = scene->mRootNode;
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return processNode(currentNode, scene);
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}
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std::vector<BarinkEngine::Mesh> ModelImporter::processNode(aiNode* node, const aiScene* scene) {
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std::vector<BarinkEngine::Mesh> meshes;
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for (unsigned int i = 0; i < node->mNumMeshes; i++) {
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aiMesh* mesh = scene->mMeshes[node->mMeshes[i]];
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meshes.push_back(processMesh(mesh, scene));
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}
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for (unsigned int i = 0; i < node->mNumChildren; i++) {
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auto m2 = processNode(node->mChildren[i], scene);
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for(auto m : m2) {
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meshes.push_back(m);
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}
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}
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return meshes;
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}
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BarinkEngine::Mesh ModelImporter::processMesh(aiMesh* mesh, const aiScene* scene) {
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std::vector<unsigned int> indices;
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std::vector<BarinkEngine::Vertex> vertices;
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// Process vertices
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for (unsigned int i = 0; i < mesh->mNumVertices; i++) {
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BarinkEngine::Vertex v{};
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glm::vec3 vector;
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vector.x = mesh->mVertices[i].x;
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vector.y = mesh->mVertices[i].y;
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vector.z = mesh->mVertices[i].z;
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v.vertices = vector;
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if (mesh->mTextureCoords[0]) {
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glm::vec2 texCoord;
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texCoord.x = mesh->mTextureCoords[0][i].x;
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texCoord.y = mesh->mTextureCoords[0][i].y;
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v.uv = texCoord;
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}
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vertices.push_back(v);
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}
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// Process Indices
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for (unsigned int i = 0; i < mesh->mNumFaces; i++) {
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aiFace face = mesh->mFaces[i];
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if (face.mNumIndices < 3)
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continue;
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for (unsigned int j = 0; j < face.mNumIndices; j++) {
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indices.push_back(face.mIndices[j]);
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}
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}
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BarinkEngine::Mesh result;
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result.vertices = vertices;
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result.elements = indices;
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return result;
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}
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@ -1,55 +1,62 @@
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#include "Graphics/Renderable.h"
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#include "AssetManager/ModelImporter.h"
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#include "PerfCounter.h"
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Renderable* Renderable::Load()
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{
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return new Renderable();
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}
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Renderable::Renderable()
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{
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meshes = ModelImporter::Test();
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transform.Scale = glm::vec3(1.0f);
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transform.Rotation = glm::vec3(0.0f, 90.0f, 0.0f);
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transform.Position = glm::vec3(0.0f, 0.0f, -10.0f);
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VAO.Create();
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VAO.Bind();
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vertexBuffer.createBuffer();
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vertexBuffer.Bind(false);
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vertexBuffer.setBufferData(&meshes[0].vertices[0], meshes[0].vertices.size() * sizeof(glm::vec3), false);
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elementBuffer.createBuffer();
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elementBuffer.Bind(true);
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elementBuffer.setBufferData(&meshes[0].elements[0], meshes[0].elements.size() * sizeof(unsigned int), true);
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VAO.AttachAttribute(0, 3, 0);
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vertexBuffer.Unbind(false);
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VAO.Unbind();
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}
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Renderable::~Renderable()
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{
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}
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void Renderable::Draw()
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{
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VAO.Bind();
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elementBuffer.Bind(true);
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ES->verts = meshes[0].vertices.size();
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ES->DC++;
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glDrawElements(GL_TRIANGLES, static_cast<unsigned int>(meshes[0].elements.size()), GL_UNSIGNED_INT, NULL);
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VAO.Unbind();
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}
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#include "Graphics/Renderable.h"
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#include "AssetManager/ModelImporter.h"
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#include "PerfCounter.h"
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Renderable* Renderable::Load()
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{
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return new Renderable();
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}
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Renderable::Renderable()
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{
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meshes = ModelImporter::Test();
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transform.Scale = glm::vec3(1.0f);
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transform.Rotation = glm::vec3(0.0f, 0.0f, 0.0f);
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transform.Position = glm::vec3(0.0f, 0.0f, 0.0f);
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VAO.Create();
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VAO.Bind();
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vertexBuffer.createBuffer();
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vertexBuffer.Bind(false);
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vertexBuffer.setBufferData(&meshes[0].vertices[0], meshes[0].vertices.size() * sizeof(BarinkEngine::Vertex), false);
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elementBuffer.createBuffer();
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elementBuffer.Bind(true);
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elementBuffer.setBufferData(&meshes[0].elements[0], meshes[0].elements.size() * sizeof(unsigned int), true);
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VAO.AttachAttribute(0, 3, sizeof(BarinkEngine::Vertex));
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glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(BarinkEngine::Vertex),(void*) offsetof(BarinkEngine::Vertex, vertices));
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glEnableVertexAttribArray(1);
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vertexBuffer.Unbind(false);
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VAO.Unbind();
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}
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Renderable::~Renderable()
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{
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glDeleteBuffers(1, &UV_id);
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}
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void Renderable::Draw()
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{
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VAO.Bind();
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elementBuffer.Bind(true);
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glActiveTexture(GL_TEXTURE0);
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glUniform1i(glGetUniformLocation(shader->id, "Texture"), GL_TEXTURE0);
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texture->Bind();
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ES->verts = meshes[0].vertices.size();
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ES->DC++;
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glDrawElements(GL_TRIANGLES, static_cast<unsigned int>(meshes[0].elements.size()), GL_UNSIGNED_INT, NULL);
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VAO.Unbind();
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}
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40
BarinkEngine/graphics/Texture.cpp
Normal file
40
BarinkEngine/graphics/Texture.cpp
Normal file
@ -0,0 +1,40 @@
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#include "../Include/Graphics/Texture.h"
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#include <glad/glad.h>
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#include <GLFW/glfw3.h>
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#define STB_IMAGE_IMPLEMENTATION
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#include "Graphics/stb_image.h"
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#include <iostream>
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Texture::Texture(const std::string texturePath) {
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int width, height, channels;
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unsigned char* data = stbi_load(texturePath.c_str(), &width, &height, &channels, 0);
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std::cout << channels << std::endl;
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if (data) {
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glGenTextures(1, &Id);
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glBindTexture(GL_TEXTURE_2D, Id);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
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glGenerateMipmap(GL_TEXTURE_2D);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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}
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else {
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spdlog::error("Failed to load image (%s)", texturePath );
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||||
}
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stbi_image_free(data);
|
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|
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}
|
||||
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||||
void Texture::Bind() {
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glBindTexture(GL_TEXTURE_2D, Id);
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}
|
||||
|
||||
void Texture::Unbind() {
|
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glBindTexture(GL_TEXTURE_2D, 0);
|
||||
}
|
||||
@ -1,25 +1,25 @@
|
||||
#include "Graphics/VertexArray.h"
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||||
#include <glad/glad.h>
|
||||
|
||||
void VertexArray::Create(){
|
||||
glGenVertexArrays(1, &id);
|
||||
}
|
||||
|
||||
void VertexArray::Bind(){
|
||||
glBindVertexArray(id);
|
||||
}
|
||||
|
||||
void VertexArray::Unbind(){
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
void VertexArray::Delete() {
|
||||
glDeleteVertexArrays(1, &id);
|
||||
}
|
||||
|
||||
|
||||
void VertexArray::AttachAttribute(unsigned int index , int size, int stride ){
|
||||
glVertexAttribPointer(index, size, GL_FLOAT, GL_FALSE, stride, 0);
|
||||
glEnableVertexAttribArray(0);
|
||||
}
|
||||
|
||||
#include "Graphics/VertexArray.h"
|
||||
#include <glad/glad.h>
|
||||
|
||||
void VertexArray::Create(){
|
||||
glGenVertexArrays(1, &id);
|
||||
}
|
||||
|
||||
void VertexArray::Bind(){
|
||||
glBindVertexArray(id);
|
||||
}
|
||||
|
||||
void VertexArray::Unbind(){
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
void VertexArray::Delete() {
|
||||
glDeleteVertexArrays(1, &id);
|
||||
}
|
||||
|
||||
|
||||
void VertexArray::AttachAttribute(unsigned int index , int size, int stride ){
|
||||
glVertexAttribPointer(index, size, GL_FLOAT, GL_FALSE, stride, 0);
|
||||
glEnableVertexAttribArray(0);
|
||||
}
|
||||
|
||||
|
||||
@ -1,9 +1,14 @@
|
||||
#version 440 core
|
||||
|
||||
out vec4 FragColor;
|
||||
|
||||
uniform vec3 MatColour;
|
||||
|
||||
void main(){
|
||||
FragColor = vec4(MatColour, 1.0f);
|
||||
#version 440 core
|
||||
|
||||
out vec4 FragColor;
|
||||
|
||||
uniform vec3 Color;
|
||||
|
||||
in vec2 TexCoord;
|
||||
|
||||
uniform sampler2D Texture;
|
||||
|
||||
|
||||
void main(){
|
||||
FragColor = mix ( texture(Texture, TexCoord), vec4(Color, 1.0f));
|
||||
}
|
||||
@ -1,10 +1,15 @@
|
||||
#version 440 core
|
||||
in layout(location=0) vec3 aPos;
|
||||
in layout(location=1) vec2 uv;
|
||||
|
||||
uniform mat4 M;
|
||||
uniform mat4 V;
|
||||
uniform mat4 P;
|
||||
|
||||
out vec2 TexCoord;
|
||||
|
||||
|
||||
void main() {
|
||||
TexCoord = uv;
|
||||
gl_Position = P * V * M * vec4(aPos.x, aPos.y, aPos.z, 1.0);
|
||||
}
|
||||
Reference in New Issue
Block a user