On Variable Change

Activates execution of the downstream graph when a graph variable’s value changes. The name of the variable comes from the input ‘Variable Name’. Only variables in the current graph are considered.

Installation

To use this node enable omni.graph.action_nodes in the Extension Manager.

Inputs

Name

Type

Descripton

Default

Only Simulate On Play (inputs:onlyPlayback)

bool

When true, the node is only executed while the Stage is being played.

True

Metadata

literalOnly = 1

Variable Name (inputs:variableName)

token

The name of the graph variable to monitor for changes.

Metadata

literalOnly = 1

Outputs

Name

Type

Descripton

Default

Changed (outputs:changed)

execution

When the variable value changes, signal to the graph that execution can continue downstream.

None

Metadata

Name

Value

Unique ID

omni.graph.action.OnVariableChange

Version

2

Extension

omni.graph.action_nodes

Has State?

True

Implementation Language

C++

Default Memory Type

cpu

Generated Code Exclusions

None

uiName

On Variable Change

Categories

graph:action,event

Generated Class Name

OgnOnVariableChangeDatabase

Python Module

omni.graph.action_nodes