I have a box defined by width, height and depth. I want the camera to keep looking at the centre of the box (width/2, height/2, depth/2) and move around in a constant rate, in the XY plane, which defines width and height.

I've tried this:

2. float xpos= cos(radians(rotation));
3.   float ypos= sin(radians(rotation));
4.   camera(xpos+width, ypos+width, depth/2, width/2, height/2, depth/2, 0, -1, 0);
5.   rotation+=10;

I'd also probably like to make this using peasycam to keep the hud it makes... but of course I could just block the mouse and keep the peasycam there... just because of the hud.

What could I be doing wrong?

Any ideas?