Illustration of the depth ordering of white matter fibers

• rotate the brain: hold the left button down while moving mouse
• zoom the brain in and out: hold the middle mouse button down while moving mouse down and up (or use scroll wheel)
• make fibers visible/invisible: use slider; fibers whose depth is less than the numerical value displayed are hidden
• animate: click on the Play button on the left of a slider to start the animation; behaviour of other buttons is obvious