Function main

Chapter2/02_GLM/src/main.cpp:80–185

};

int main(void)
{
	glfwSetErrorCallback(
		[](int error, const char* description)
		{
			fprintf(stderr, "Error: %s\n", description);
		}
	);

	if (!glfwInit())
		exit(EXIT_FAILURE);

	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

	GLFWwindow* window = glfwCreateWindow(1024, 768, "Simple example", nullptr, nullptr);
	if (!window)
	{
		glfwTerminate();
		exit(EXIT_FAILURE);
	}

	glfwSetKeyCallback(
		window,
		[](GLFWwindow* window, int key, int scancode, int action, int mods)
		{
			if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
				glfwSetWindowShouldClose(window, GLFW_TRUE);
		}
	);

	glfwMakeContextCurrent(window);
	gladLoadGL(glfwGetProcAddress);
	glfwSwapInterval(1);

	const GLuint shaderVertex = glCreateShader(GL_VERTEX_SHADER);
	glShaderSource(shaderVertex, 1, &shaderCodeVertex, nullptr);
	glCompileShader(shaderVertex);

	const GLuint shaderFragment = glCreateShader(GL_FRAGMENT_SHADER);
	glShaderSource(shaderFragment, 1, &shaderCodeFragment, nullptr);
	glCompileShader(shaderFragment);

	const GLuint program = glCreateProgram();
	glAttachShader(program, shaderVertex);
	glAttachShader(program, shaderFragment);
	glLinkProgram(program);
	glUseProgram(program);

	GLuint vao;
	glCreateVertexArrays(1, &vao);
	glBindVertexArray(vao);

	const GLsizeiptr kBufferSize = sizeof(PerFrameData);

	GLuint perFrameDataBuffer;
	glCreateBuffers(1, &perFrameDataBuffer);