Navigating the Hypergraph - Autodesk Maya - Making Movie - 4
The myCube node is the transform node. The myCubeShape node is the shape node. In theHypergraph, the shape and transform nodes are depicted as unconnected; however, there is
an implied connection, as you’ll see later. This is demonstrated when you rename the myCube
node; the shape node is renamed as well.
In Maya, the construction history feature stores a record of the changes used to create a particular
node. The polyCube1 node is the construction history node for the myCubeShape node.
When you first create a piece of geometry, you can set options to the number of subdivisions,
spans, width, height, depth, and many other features that are stored as a record in this history
node. Additional history nodes are added as you make changes to the node. You can go back
and change these settings as long as the history node still exists. Deleting a history node makes
all the previous changes to the node permanent (however, deleting history is undoable).
1. Keep the Hypergraph open, but select the cube in the viewport.
2. Set the current menu to Polygons (you can change the menu set by choosing Polygons
from the menu in the upper left of the Maya interface).
3. Choose Mesh Smooth. The cube will be subdivided and smoothed in the viewport.
In the Hypergraph you’ll see a new polySmoothFace1 node between the polyCube1 node
and the myCubeShape node (see Figure€1.4). This new node is part of the history of the
cube.
4. Select the polySmoothFace1 node, and delete it by pressing the Backspace key on the keyboard.
The cube will return to its unsmoothed state.
Figure€1.4
Performing a
smooth operation
on the cube when
construction history
is activated
causes a new
polySmoothFace
node to be inserted
into the node
network.
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