I've stumbled on an issue in OpenGL that I can't explain, unless I somehow misunderstood how `glPushMatrix()` / `glPopMatrix()` work.

Shouldn't the two pieces of code below have exactly the same effect?

```
  glPushMatrix();
  glVertex3f(0,0,0);
  glTranslatef(c->e->coords[0], c->e->coords[1], c->e->coords[2]);
  glPopMatrix();

```

vs

```
  glVertex3f(c->e->coords[0], c->e->coords[1], c->e->coords[2]);

```

In my application, only when I use the second one do I see anything. I tried with both pieces of code in the exact same place in the code, changing nothing else, and the one with push/pop matrix doesn't draw anything on screen.