glfw testje

glfwtest.cpp

//
//  main.cpp
//  GLFWtest
//
//  Created by Kay Lukas on 26-06-12.
//  Copyright (c) 2012 TU/e. All rights reserved.
//

#include <iostream>
#include <GL/glfw.h>
#include <GLUT/glut.h>
#include <stdlib.h>

int main(){
	printf("Hello World\n");
	glfwInit();//Initialize
	glfwOpenWindow(640, 480, 8,8,8,8,8,8, GLFW_WINDOW);//Open a window
	glfwSetWindowTitle("Code snappit");
	int running = true;
	glClearColor(0,0,0,0);
	glViewport(0, 0, 640, 480 );
  	glMatrixMode(GL_PROJECTION );
  	glLoadIdentity(); 
	gluPerspective (90, 640.0/480.0, 1.0, 5000.0 );
	glTranslated(0.0f, 0.0f, -1.0f);
	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	int counter = 0;
	while(running){//Execute main loop, just as many fps as you can achieve
		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);//clear buffer bits
		glRasterPos2i(0, 0);
		glColor3f(1.0f,1.0f,1.0f);
		//Draw a white triangle
		glBegin(GL_TRIANGLES);
		glVertex3f( 0.0f, 1.0f, 0.0f);
		glVertex3f(-1.0f,-1.0f, 0.0f);
		glVertex3f( 1.0f,-1.0f,0.0f);
		glEnd();
		//Draw abc using glut
		glColor3f(0.0f, 0.0f, 0.0f);
		glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'a');
		glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'b');
		glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'c');
		glfwSwapBuffers();
		running = !glfwGetKey(GLFW_KEY_ESC) && glfwGetWindowParam(GLFW_OPENED);
		if(counter++ == 100){
			counter = 0;
			printf("100 frames achieved!\n");
		}
	}
	glfwCloseWindow();
	glfwTerminate();
}

Het toevoegen van: glfwSwapInterval(0); voor while(running) zet vsync uit, zodat je maximale fps kan bekijken. Let er wel op dat je vsync wel aan wilt hebben, geeft over het algemeen mooier beeld.