void IrrSetCamera (irr::scene::ICameraSceneNode* camera,
                              float rotx, float roty, float rotz,
                              float x, float y , float z) {

 quaternion tempQuaternion;

 // Work out the 3 axes for the camera:
 // Forward = target (0,0,0) - position -- the position at (x=0, y=0) is (0,0,1).
 // Right = -1 * cross-product of up.
 // Pos = -forward + x * right + y * up.
 vector3df up(0,1,0);
 vector3df forward(0,0,-1);
 vector3df pos(x,y,1);

 tempQuaternion.fromAngleAxis(rotz, forward);
 tempQuaternion.getMatrix().rotateVect(up);

 tempQuaternion.fromAngleAxis(rotx, up);
 tempQuaternion.getMatrix().rotateVect(forward);

 vector3df right = forward.crossProduct (up);
 tempQuaternion.fromAngleAxis(roty, right);
 tempQuaternion.getMatrix().rotateVect(forward);
 tempQuaternion.getMatrix().rotateVect(up);

 pos = pos + z * forward;
 camera->setUpVector (up);
 camera->setTarget (pos + forward);
 camera->setPosition (pos);
}