Add project files.

main.cpp

@@ -0,0 +1,151 @@
+#include <glad/glad.h>
+#include <GLFW/glfw3.h>
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+
+#include <shader.h>
+
+#include <iostream>
+#include <fstream>
+
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height);
+void processInput(GLFWwindow* window);
+
+int SCR_WIDTH = 800;
+int SCR_HEIGHT = 800;
+
+float triangleVertices[] = {
+	-0.5f,-0.5f,0.0f,	1.0f,0.0f,0.0f,
+	 0.5f,-0.5f,0.0f,	0.0f,1.0f,0.0f,
+	 0.0f, 0.5f,0.0f,	0.0f,0.0f,1.0f
+};
+
+float squareVertices[] = {
+	 -0.8f, 1.0f, 0.0f,	1.0f, 0.0f, 0.0f,
+	 -0.8f, 0.8f, 0.0f,	1.0f, 0.0f, 0.0f,
+	 -1.0f, 0.8f, 0.0f,	0.0f, 1.0f, 0.0f,
+	 -1.0f, 1.0f, 0.0f,	0.0f, 1.0f, 0.0f
+};
+
+unsigned int indices[] = {
+	0,1,3,
+	1,2,3
+};
+
+int main() {
+	glfwInit();
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+	GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearningOpenGl", NULL, NULL);
+	if (window == NULL) {
+		std::cout << "Failed to create GLFW window" << std::endl;
+		glfwTerminate();
+		return -1;
+	}
+	glfwMakeContextCurrent(window);
+	glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+
+	if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
+		std::cout << "Failed to initialize GLAD" << std::endl;
+		return -1;
+	}
+
+	Shader ourShader("vertex.vert", "fragment.frag");
+
+	glViewport(0, 0, SCR_WIDTH, SCR_HEIGHT);
+
+	unsigned int VAO_1, VAO_2, VBO_1, VBO_2, EBO;
+	glGenVertexArrays(1, &VAO_1);
+	glGenVertexArrays(1, &VAO_2);
+	glGenBuffers(1, &VBO_1);
+	glGenBuffers(1, &VBO_2);
+	glGenBuffers(1, &EBO);
+
+	glBindVertexArray(VAO_1);
+
+	glBindBuffer(GL_ARRAY_BUFFER, VBO_1);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(triangleVertices), triangleVertices, GL_STATIC_DRAW);
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0);
+	glEnableVertexAttribArray(0);
+
+	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(3 * sizeof(float)));
+	glEnableVertexAttribArray(1);
+
+	glBindVertexArray(VAO_2);
+
+	glBindBuffer(GL_ARRAY_BUFFER, VBO_2);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(squareVertices), squareVertices, GL_STATIC_DRAW);
+
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
+
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0);
+	glEnableVertexAttribArray(0);
+
+	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(3 * sizeof(float)));
+	glEnableVertexAttribArray(1);
+
+	glBindBuffer(GL_ARRAY_BUFFER, 0);
+	glBindVertexArray(0);
+	
+	float r = 0.0f, g = 0.0f, b = 0.0f;
+	while (!glfwWindowShouldClose(window)) {
+		//input
+		processInput(window);
+
+		//rendering
+		if (r < 1) {
+			r = r + 0.01f;
+		}
+		else if (g < 1) {
+			g = g + 0.01f;
+		}
+		else if (b < 1) {
+			b = b + 0.01f;
+		}
+		else {
+			r = 0;
+			g = 0;
+			b = 0;
+		}
+
+		glClearColor(r, g, b, 1.0f);
+		glClear(GL_COLOR_BUFFER_BIT);
+
+		//transforms
+		glm::mat4 defaultTransform = glm::mat4(1.0f);
+		glm::mat4 rotatedTransform = glm::rotate(defaultTransform, (float)glfwGetTime(), glm::vec3(0.0f, 0.0f, 1.0f));
+
+		//draw
+		ourShader.use();
+		unsigned int transformLoc = glGetUniformLocation(ourShader.ID, "transform");
+		glUniformMatrix4fv(transformLoc, 1, GL_FALSE, glm::value_ptr(rotatedTransform));
+		glBindVertexArray(VAO_1);
+		glDrawArrays(GL_TRIANGLES, 0, 3);
+
+		glUniformMatrix4fv(transformLoc, 1, GL_FALSE, glm::value_ptr(defaultTransform));
+		glBindVertexArray(VAO_2);
+		glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+
+		//check and call
+		glfwSwapBuffers(window);
+		glfwPollEvents();
+	}
+
+	glfwTerminate();
+	return 0;
+}
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height) {
+	glViewport(0, 0, width, height);
+}
+
+void processInput(GLFWwindow* window) {
+	if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) {
+		glfwSetWindowShouldClose(window, true);
+	}
+}