7.- PRISMA TRIANGULAR

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                  PRISMA TRIANGULAR

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#include <stdlib.h>

#include <GL/glut.h>

void reshape( int width, int height)

{

glViewport(0,0, width, height);

glMatrixMode(GL_PROJECTION);

glLoadIdentity();

glOrtho(-3,7,-5,5,-5,5);

glMatrixMode(GL_MODELVIEW);

}

void display()

{

glClear(GL_COLOR_BUFFER_BIT);

glColor3f(1.0,0.0,0.0);

glLoadIdentity();

glBegin(GL_TRIANGLES);

glColor3f(1.0,0.0,0.0);

glVertex3f(0,0,0);

glVertex3f(0,0,3);

glVertex3f(1.5,3,-1.5);

glVertex3f(0,0,0);

glBegin(GL_TRIANGLES);

glColor3f(0.0,1.0,0.0);

glVertex3f(3,0,0);

glVertex3f(3,0,3);

glVertex3f(1.5,3,-1.5);

glVertex3f(3,0,0);

glBegin(GL_TRIANGLES);

glColor3f(0.0,0.0,1.0);

glVertex3f(0,0,3);

glVertex3f(3,0,3);

glVertex3f(1.5,3,-1.5);

glVertex3f(0,0,3);

glBegin(GL_TRIANGLES);

glColor3f(1.0,1.0,0.0);

glVertex3f(0,0,0);

glVertex3f(3,0,0);

glVertex3f(1.5,3,-1.5);

glVertex3f(0,0,0);

glEnd();

glFlush();

}

 void init()

{

glClearColor(0,0,0,0);

}

int main (int argc, char **argv)

{

glutInit(&argc, argv);

glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);

glutInitWindowPosition(50,50);

glutInitWindowSize(500,500);

glutCreateWindow("PRISMA TRIANGULAR");

init();

glutDisplayFunc(display);

glutReshapeFunc(reshape);

glutMainLoop();

return 0;

}