3ds max 2020 tutorials Scene Layout - Specifying system units I set the System Unit Scale to meters now instead of the object being one meter on a side suddenly now it's almost 40 meters on a side. Nothing changed the View Port here, but the entire world is being interpreted as being a different scale. Usually you want this set to inches because that's a good compromise for scenes that are built at the scale of the human body. So if it's set to inches which is the default, then you can model objects that are very small like fractions of a millimeter. Can also model objects that are very large on the scale of kilometers. Below this is an Origin slider. This allows us to determine the accuracy at different System Unit Scale settings. So as we drag this around we're moving a virtual point towards or away from the Origin and the Origin is here over at the left and the farthest extents of the world are over here on the right. So a 3D scene is not really infinite and it's not infinitely accurate. As we get farther away from the Origin the accuracy goes down and paradoxically that's indicated by the numbers here going up.
