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There are numerous ways to approach time and events that occur in TouchDesigner networks. Events in TouchDesigner are generated from a variety of conditions – from actions that a user causes, from external devices and software, and from internal TouchDesigner states.
A common approach for sequencing events is to use the Timer CHOP. It can be used to set up a relationship between events and their effects, like triggering animation or generating other events in TouchDesigner.
State changes in user interfaces also create events that we may want to react to in TouchDesigner. Some operators react to changes in UI panels. Events can also be triggered from outside TouchDesigner: operators like the Folder DAT (for changes to external files) or Monitors DAT watch for expernal changes that in turn can make changes in networks.