OpenGL not displaying anything when gluLookAt called - c

Question

I am working on a practice OpenGL program. I am basically trying to display a pyramid. I pasted the code I have so far bellow. The issue I am having is that when I call gluLookAt my screen becomes completely black. This does not make sense to me. My pyramid has triangles with dimensions bounded within a box of size (1, 1, 1) and it is at the origin. So therefore if I position the eye at something far away if (10, 10, 10) and look at (0, 0, 0) why do I not see the pyramid. When I comment out gluLookAt I can see it clearly.
#include <GL/glut.h>
#include <stdlib.h>
#include <stdio.h>
struct
{
GLuint trifan;
GLuint tribase;
GLuint colors;
} b;
void display();
void init_buffer();
void check_errors();
void reshape(int w, int h);
void keyboard(unsigned char k, int x, int y);
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitWindowSize(500, 500);
glutCreateWindow("Pyramid");
init_buffer();
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
void init_buffer()
{
glGenBuffers(1, &(b.trifan));
glBindBuffer(GL_ARRAY_BUFFER, b.trifan);
GLfloat trifan[6][3] =
{
{0.0, 1.0, 0.0},
{1.0, 0.0, 1.0},
{-1.0, 0.0, 1.0},
{-1.0, 0.0, -1.0},
{1.0, 0.0, -1.0},
{1.0, 0.0, 1.0}
};
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * 3 * 6, trifan, GL_STATIC_COPY);
glGenBuffers(1, &b.colors);
glBindBuffer(GL_ARRAY_BUFFER, b.colors);
GLfloat colors[6][3] =
{
{1.0, 0.0, 0.0},
{1.0, 0.0, 0.0},
{1.0, 0.0, 0.0},
{1.0, 0.0, 1.0},
{0.5, 0.0, 1.0},
{1.0, 0.0, 0.5},
};
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * 3 * 6, colors, GL_STATIC_COPY);
check_errors();
}
void reshape(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60, (float)w / (float)h, 1.0, 100.0);
}
float angle = 0.0;
float zoom = 1.0;
void keyboard(unsigned char k, int x, int y)
{
if(k == 'x')
{
angle += 10;
}
else if(k == 'y')
{
angle -= 10;
}
else if(k == 'w')
{
zoom += 0.1;
}
else if(k == 's')
{
zoom -= 0.1;
}
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glRotated(angle, 1.0, 0.0, 0.0);
gluLookAt(10.0, 10.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
{
glBindBuffer(GL_ARRAY_BUFFER, b.trifan);
glVertexPointer(3, GL_FLOAT, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, b.colors);
glColorPointer(3, GL_FLOAT, 0, 0);
glDrawArrays(GL_TRIANGLE_FAN, 0, 6);
}
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
check_errors();
glFlush();
}
void check_errors()
{
GLint err = glGetError();
if(err != GL_NO_ERROR)
{
fputs((char*)gluErrorString(err), stderr);
exit(1);
}
}