In 3D graphics, points have not just two coordinates ... and we can visualize that direction with a little 3D arrow that's perpendicular to the polygon's surface. Now let's add a light source.

Source: Intel In preparation for its talk at Hot Chips 34, Intel held a media roundtable where it handed out (among other things) this nifty little graphic ... Arrow Lake: Intel Next Gen 3D ...

Igor’s Lab has provided some updates on Arrow Lake-S and its associated LGA 1851 socket, including 3D schematics of the CPU loading mechanism (bracket) and the chipset itself. Igor also unveiled ...