simple.c

OpenGL的大海量资料收集

/*
 *  simple.c
 *  This program draws a white rectangle on a black background.
 */

/* E. Angel, Interactive Computer Graphics */
/* A Top-Down Approach with OpenGL, Third Edition */
/* Addison-Wesley Longman, 2003 */

#include <windows.h>
#include <glut.h>         /* glut.h includes gl.h and glu.h*/


void RenderScene(void)         // RenderScene

{
/* clear window */

	 glClear(GL_COLOR_BUFFER_BIT); 


/* draw unit square polygon */

	glBegin(GL_POLYGON);
	 	glVertex2f(-0.5, -0.5);
	 	glVertex2f(-0.5, 0.5);
	 	glVertex2f(0.5, 0.5);
	 	glVertex2f(0.5, -0.5);
	glEnd();

/* flush GL buffers */

	glFlush(); 

}


void SetupRC()             //SetupRC
{

/* set clear color to black */

	glClearColor (0.0, 0.0, 0.0, 0.0); 
/* set fill  color to white */

 	glColor3f(1.0, 1.0, 1.0); 

/* set up standard orthogonal view with clipping */
/* box as cube of side 2 centered at origin */
/* This is default view and these statement could be removed */

    //glMatrixMode (GL_PROJECTION);
	//glLoadIdentity ();
	//glOrtho(-0.0, 0.0, -1.0, 1.0, -1.0, 1.0); 
}

int main(int argc, char** argv)
{

/* Initialize mode and open a window in upper left corner of screen */
/* Window title is name of program (arg[0]) */

 	glutInit(&argc,argv); 
	glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);  
	glutInitWindowSize(500,500);
	glutInitWindowPosition(0,0); 
	glutCreateWindow("simple"); 
	glutDisplayFunc(RenderScene);
	SetupRC();
	glutMainLoop();

}