Algoritmia - Algoritmo 3d

#include <iostream>

#include <GL/glew.h>

#include <GLFW/glfw3.h>

#include <glm/glm.hpp>

#include <glm/gtc/matrix_transform.hpp>

glm::mat4 viewMatrix;

void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) {

    if (action == GLFW_PRESS || action == GLFW_REPEAT) {

        const float speed = 0.1f;

        if (key == GLFW_KEY_W) viewMatrix = glm::translate(viewMatrix, glm::vec3(0.0f, 0.0f, -speed));

        if (key == GLFW_KEY_S) viewMatrix = glm::translate(viewMatrix, glm::vec3(0.0f, 0.0f, speed));

        if (key == GLFW_KEY_A) viewMatrix = glm::translate(viewMatrix, glm::vec3(-speed, 0.0f, 0.0f));

        if (key == GLFW_KEY_D) viewMatrix = glm::translate(viewMatrix, glm::vec3(speed, 0.0f, 0.0f));

    }

}

int main() {

    if (!glfwInit()) {

        std::cerr << "Error initializing GLFW" << std::endl;

        return -1;

    }

    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);

    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);

    GLFWwindow* window = glfwCreateWindow(800, 600, "3D Camera", nullptr, nullptr);

    if (!window) {

        std::cerr << "Error creating GLFW window" << std::endl;

        glfwTerminate();

        return -1;

    }

    glfwMakeContextCurrent(window);

    glewInit();

    glfwSetKeyCallback(window, key_callback);

    glEnable(GL_DEPTH_TEST);

    // Inicializar la matriz de vista (view matrix)

    viewMatrix = glm::lookAt(glm::vec3(0.0f, 0.0f, 3.0f), glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, 1.0f, 0.0f));

    while (!glfwWindowShouldClose(window)) {

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        // Aplicar la matriz de vista

        // En este punto, puedes utilizar viewMatrix como la matriz de vista personalizada

        // glm::mat4 modelMatrix = glm::mat4(1.0f);

        // glm::mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;

        // glUniformMatrix4fv(mvpUniformLocation, 1, GL_FALSE, glm::value_ptr(mvp));

        // Dibujar tu escena 3D aquí

        glfwSwapBuffers(window);

        glfwPollEvents();

    }

    glfwTerminate();

    return 0;

}