Pivot point is the central point of the node which is used to scale or rotate the geometry of the node. Sometimes you may need to move that point to the center or to the bottom of the node for easier scene management. That’s what the Pivot Editor tool is for.
Let’s make a scene with a box and a sphere:
Both nodes have their pivot points at the bottom. If you need to rotate both shapes around their centers, you need to move their pivot points first. Click Tools -> Setup Pivot Parameters in the menu, or click the pivot editor button in the toolbar. A pivot editor window pops up:
As you may see, both pivot points were automatically moved to the centers of shapes. That’s the default behavior of the pivot editor tool. Here’s what you can configure:
There are several methods of calculating pivot point position. You choose one using the Calculate pivot combo box:
As for the pivot moving rules, there are 3 options: Minimum, Maximum and Center. By default all the options are set to “Center” and this moves the pivot into the very middle of the shape. If for instance, you need to put a pivot in the middle of the bottom of the shape, you need to put “Pivot Z” to “Minimum”, while keeping the other two at “Center”.