// Automatically add a streaming feedback node and correctly connect it to stack samples are connected to it and it is connected to the master node output
public static List <string> GetFeedbackVariables(SubGraphOutputNode masterNode)
{
// TODO: make use a generic interface instead of hard-coding the node types that we need to look at here
var VTNodes = GraphUtil.FindDownStreamNodesOfType <SampleVirtualTextureNode>(masterNode);
var subGraphNodes = GraphUtil.FindDownStreamNodesOfType <SubGraphNode>(masterNode);
List <string> result = new List <string>();
// Early out if there are no nodes we care about in the graph
if (subGraphNodes.Count <= 0 && VTNodes.Count <= 0)
{
return(result);
}
// Add inputs to feedback node
foreach (var node in VTNodes)
{
if (node.noFeedback)
{
continue;
}
result.Add(node.GetFeedbackVariableName());
}
foreach (var node in subGraphNodes)
{
if (node.asset == null)
{
continue;
}
// TODO: subgraph.GetFeedbackVariableNames(...)
foreach (var feedbackSlot in node.asset.vtFeedbackVariables)
{
result.Add(node.GetVariableNameForNode() + "_" + feedbackSlot);
}
}
return(result);
}
