CODIGO CREACION DEL PRISMA

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);
glEnd();

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);
glEnd();

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);
glEnd();
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();

glBegin(GL_POLYGON);
glColor3f(1.0,0.0,1.0);
glVertex3f(0,0,0);
glVertex3f(3,0,0);
glVertex3f(3,0,3);
glVertex3f(0,0,3);
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;
}