CUBE.C

/* 
 * (c) Copyright 1993, Silicon Graphics, Inc. 
 *               1993-1995 Microsoft Corporation 
 * 
 * ALL RIGHTS RESERVED 
 * 
 * Please refer to OpenGL/readme.txt for additional information 
 * 
 */ 
 
/* 
 *  cube.c 
 *  Draws a 3-D cube, viewed with perspective, stretched  
 *  along the y-axis. 
 */ 
#include "glos.h" 
 
#include <GL/gl.h> 
#include <GL/glu.h> 
#include <GL/glaux.h> 
 
void myinit(void); 
void CALLBACK myReshape(GLsizei w, GLsizei h); 
void CALLBACK display(void); 
 
/*  Clear the screen.  Set the current color to white. 
 *  Draw the wire frame cube. 
 */ 
void CALLBACK display (void) 
{ 
    glClear(GL_COLOR_BUFFER_BIT); 
    glColor3f (1.0, 1.0, 1.0); 
    glLoadIdentity ();  /*  clear the matrix    */ 
    glTranslatef (0.0, 0.0, -5.0);  /*  viewing transformation  */ 
    glScalef (1.0, 2.0, 1.0);   /*  modeling transformation */ 
    auxWireCube(1.0);   /*  draw the cube   */ 
    glFlush(); 
} 
 
void myinit (void) { 
    glShadeModel (GL_FLAT); 
} 
 
/*  Called when the window is first opened and whenever  
 *  the window is reconfigured (moved or resized). 
 */ 
void CALLBACK myReshape(GLsizei w, GLsizei h) 
{ 
    glMatrixMode (GL_PROJECTION);   /*  prepare for and then  */  
    glLoadIdentity ();  /*  define the projection  */ 
    glFrustum (-1.0, 1.0, -1.0, 1.0, 1.5, 20.0);    /*  transformation  */ 
    glMatrixMode (GL_MODELVIEW);    /*  back to modelview matrix    */ 
    glViewport (0, 0, w, h);    /*  define the viewport */ 
} 
 
/*  Main Loop 
 *  Open window with initial window size, title bar,  
 *  RGBA display mode, and handle input events. 
 */ 
int main(int argc, char** argv) 
{ 
    auxInitDisplayMode (AUX_SINGLE | AUX_RGB); 
    auxInitPosition (0, 0, 500, 500); 
    auxInitWindow ("Perspective 3-D Cube"); 
    myinit (); 
    auxReshapeFunc (myReshape); 
    auxMainLoop(display); 
    return(0); 
}