106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
#include <iostream>
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#include "openglu.hpp"
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#include "transformable.hpp"
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#include <glad/glad.h>
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#include <GLFW/glfw3.h>
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <glm/gtc/type_ptr.hpp>
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void framebuffer_size_callback(GLFWwindow* window, int width, int height)
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{
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oglu::SetViewport(0, 0, width, height);
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}
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void processInput(GLFWwindow* window)
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{
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if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
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glfwSetWindowShouldClose(window, true);
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}
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int main(int argc, char** argv)
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{
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// Setup GLFW
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glfwInit();
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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const GLFWvidmode* screen = glfwGetVideoMode(glfwGetPrimaryMonitor());
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int windowSize = screen->height / 4 * 3;
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// Create Window
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GLFWwindow* window = glfwCreateWindow(windowSize, windowSize, "Utah teapot", NULL, NULL);
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if (window == nullptr)
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{
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std::cerr << "Failed to create GLFW window" << std::endl;
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glfwTerminate();
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return -1;
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}
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glfwMakeContextCurrent(window);
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glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
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// glad stuff
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oglu::LoadGLLoader((GLADloadproc)glfwGetProcAddress);
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oglu::SetViewport(0, 0, windowSize, windowSize);
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oglu::VertexArray utah_model;
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try {
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utah_model = oglu::MakeVertexArray("assets/utah.obj");
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}
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catch (const std::runtime_error& e)
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{
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std::cerr << e.what() << std::endl;
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return -1;
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}
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oglu::Object utah(utah_model);
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// Create a shader
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oglu::Shader shader;
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try
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{
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shader = oglu::MakeShader("shaders/vertexShader.vert", "shaders/fragmentShader.frag");
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}
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catch (const std::runtime_error& e)
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{
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std::cerr << e.what() << std::endl;
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return -1;
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}
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oglu::Enable(GL_DEPTH_TEST);
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oglu::Camera camera(45.0f, 1.0f, 0.1f, 100.0f);
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camera.Move(0.0f, -5.0f, -10.0f);
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camera.LookAt(glm::value_ptr(glm::make_vec3(utah.GetPosition()) + glm::vec3(0.0f, 2.0f, 0.0f)));
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float t = 0.0f;
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// Window loop
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while (!glfwWindowShouldClose(window))
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{
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processInput(window);
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oglu::ClearScreen(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, oglu::Color(0.29f, 0.13f, 0.23f));
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utah.Rotate(0.0f, 10.0f, 0.0f);
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shader->Use();
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shader->SetUniform("model", utah);
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shader->SetUniform("view", camera);
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shader->SetUniformMatrix4fv("projection", 1, GL_FALSE, camera.GetProjectionMatrix());
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oglu::PolygonMode(GL_FRONT_AND_BACK, GL_LINE);
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utah.Render();
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glfwSwapBuffers(window);
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glfwPollEvents();
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t += 0.01f;
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}
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glfwTerminate();
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return 0;
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}
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