Keep the selected node
from updating when its inputs change.
Blocking.
Make the node active
again.
Normal.
Notes
The “HasNoEffect” state has a different
meaning for each node type. Some node types do not implement the
state, in which case the state acts just like “Normal”.
The “Waiting” node states are used internally
by Maya to keep track of nodes that are waiting for a view update
in the Hypergraph. You should not
normally set nodes to a “Waiting” state.
