Starting OpenGL on Mac

I am starting to learn OpenGL and trying a simple hello world program, and I am getting errors.

My system has OS 10.3, and I am working with CodeWorrior IDE4.04 under OS 9 on.

Following is the program I am trying (from ) When I Run the program it asks for arguments and if I hit OK without typing in anything it ends with error message.

// This code was created by Jeff Molofee '99
// If you’ve found this code useful, please let me know.
// Visit me at
// This code was ported to MacOS by Tony Parker.
// I’d also appreciate it if you could drop me a line if you found
// this code useful.
// Tony Parker -
// Have a nice day.

#include <stdio.h> // Header File For Standard Input / Output
#include <stdarg.h> // Header File For Variable Argument Routines
#include <string.h> // Header File For String Management
#include <stdlib.h>
#include <gl.h> // Header File For The OpenGL32 Library
#include <glu.h> // Header File For The GLu32 Library
#include <glut.h> // Header File For The GLUT Library
#include <math.h>

// Constants -----------------------------------------------------------------

#define kWindowWidth 400
#define kWindowHeight 300

// Function Prototypes -------------------------------------------------------

GLvoid InitGL(GLvoid);
GLvoid DrawGLScene(GLvoid);
GLvoid ReSizeGLScene(int Width, int Height);

// Main ----------------------------------------------------------------------

int main(int argc, char** argv)

glutInit(&argc, argv);

glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize (kWindowWidth, kWindowHeight); 
glutInitWindowPosition (100, 100);
glutCreateWindow (argv[0]);




return 0;


// Init ----------------------------------------------------------------------

GLvoid InitGL(GLvoid)

glClearColor(0.0f, 0.0f, 0.0f, 0.0f);		// This Will Clear The Background Color To Black
glClearDepth(1.0);							// Enables Clearing Of The Depth Buffer
glDepthFunc(GL_LESS);						// The Type Of Depth Test To Do
glEnable(GL_DEPTH_TEST);					// Enables Depth Testing
glShadeModel(GL_SMOOTH);					// Enables Smooth Color Shading

glLoadIdentity();							// Reset The Projection Matrix

gluPerspective(45.0f,(GLfloat)kWindowWidth/(GLfloat)kWindowHeight,0.1f,100.0f);	// Calculate The Aspect Ratio Of The Window



// DrawGLScene ---------------------------------------------------------------

GLvoid DrawGLScene(GLvoid)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
glLoadIdentity(); // Reset The View


	glVertex3f( 0.0f, 1.0f, 0.0f);
	glVertex3f(-1.0f,-1.0f, 0.0f);
	glVertex3f( 1.0f,-1.0f, 0.0f);


	glVertex3f(-1.0f, 1.0f, 0.0f);
	glVertex3f( 1.0f, 1.0f, 0.0f);
	glVertex3f( 1.0f,-1.0f, 0.0f);
	glVertex3f(-1.0f,-1.0f, 0.0f);



// ReSizeGLScene ------------------------------------------------------------

GLvoid ReSizeGLScene(int Width, int Height)
glViewport (0, 0, (GLsizei) Width, (GLsizei) Height);

gluPerspective(45.0, (GLfloat) Width / (GLfloat) Height, 0.1, 100.0);



The glut_error_log file says

GLUT: Fatal Error in a.out: window could not be created.

I suggest you use Xcode and the Cocoa ports of the NeHe tutorials. Xcode is free, doesn’t require Classic, and comes with the OS.

What does glutCreateWindow need?
why is argv[0] being passed in?
Need to find that out.

glutCreateWindow takes a const char* which is used as the window title. argv[0] is being passed in the hopes that the window title will be the same as the application name.

I can’t see why that wouldn’t work, but it might be worth trying a constant string.

I am running OSX10.1 on my PB and this code works fine, once I changed the include files to:

#include <OPENGL/gl.h>
#include <OPENGL/glu.h>
#include <GLUT/glut.h>

And add the GLUT and OPENGL frameworks to a cocoa project.

Hope this helps


Technically, it’s OpenGL.framework. OPENGL won’t work if you’re on a case-sensitive file system.


First, you mus change the path in the statement #include

#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>

Now, for compile your program, in the terminal aplication with:

cc -Wall -o exe_name your_program_file.c -lobjc \
-framework OpenGL -framework GLUT

I hope you can compile your programs


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