public void AddToHyperGraph(ShaderPatcherLayer.NodeGraph nodeGraph, HyperGraph.IGraphModel graph)
{
//
// Convert from the "ShaderPatcherLayer" representation back to
// our graph control nodes.
//
// This is required for robust serialisation. We can't easily
// serialise in and out the graph control objects directly, because
// it risks problems if the rendering code or shader fragment objects
// change. That is, it's not very version-robust.
//
// It's better to serialise a slightly higher level representation
// that just contains the node names and connections. That way, we
// can adapt to changes in the tool and data.
//
{
// --------< Basic Nodes >--------
var newNodes = new Dictionary<int, Node>();
var nodeIdToControlNode = new Dictionary<UInt64, Node>();
foreach (var n in nodeGraph.Nodes)
{
if (!newNodes.ContainsKey(n.VisualNodeId))
{
var visualNode = nodeGraph.VisualNodes[n.VisualNodeId];
// also look for preview settings...
var previewSettings = nodeGraph.PreviewSettingsObjects.Where(x => x.VisualNodeId == n.VisualNodeId).FirstOrDefault();
Node newNode = null;
if (n.NodeType == ShaderPatcherLayer.Node.Type.Procedure)
{
var fn = _shaderFragments.GetFunction(n.FragmentArchiveName);
newNode = _nodeCreator.CreateNode(fn, n.FragmentArchiveName, previewSettings);
}
else
{
var ps = _shaderFragments.GetParameterStruct(n.FragmentArchiveName);
newNode = _nodeCreator.CreateParameterNode(ps, n.FragmentArchiveName, AsSourceType(n.NodeType));
}
if (newNode != null)
{
MatchVisualNode(newNode, visualNode);
newNodes[n.VisualNodeId] = newNode;
nodeIdToControlNode[n.NodeId] = newNode;
}
}
}
graph.AddNodes(newNodes.Values);
// --------< Node Connections >--------
foreach (var c in nodeGraph.NodeConnections)
{
if (nodeIdToControlNode.ContainsKey(c.InputNodeID) && nodeIdToControlNode.ContainsKey(c.OutputNodeID))
{
var inputItem = FindOrCreateNodeItem(nodeIdToControlNode[c.InputNodeID],
(item) => (item.Output != null && item.Output.Enabled && item is ShaderFragmentNodeItem && ((ShaderFragmentNodeItem)item).Name.Equals(c.InputParameterName)),
() => new ShaderFragmentNodeItem(c.InputParameterName, c.InputType, null, false, true));
var outputItem = FindOrCreateNodeItem(nodeIdToControlNode[c.OutputNodeID],
(item) => (item.Input != null && item.Input.Enabled && item is ShaderFragmentNodeItem && ((ShaderFragmentNodeItem)item).Name.Equals(c.OutputParameterName)),
() => new ShaderFragmentNodeItem(c.OutputParameterName, c.OutputType, null, true, false));
graph.Connect(inputItem.Output, outputItem.Input);
}
}
// --------< Constant Connections >--------
foreach (var c in nodeGraph.ConstantConnections)
{
if (nodeIdToControlNode.ContainsKey(c.OutputNodeID))
{
var node = nodeIdToControlNode[c.OutputNodeID];
var outputItem = FindOrCreateNodeItem(node,
(item) => (item.Input != null && item.Input.Enabled && item is ShaderFragmentNodeItem && ((ShaderFragmentNodeItem)item).Name.Equals(c.OutputParameterName)),
() => new ShaderFragmentNodeItem(c.OutputParameterName, "float", null, true, false));
var connection = new NodeConnection();
connection.To = outputItem.Input;
connection.Name = c.Value;
node.AddConnection(connection);
}
}
// --------< Input Parameter Connections >--------
foreach (var c in nodeGraph.InputParameterConnections)
{
if (!nodeIdToControlNode.ContainsKey(c.OutputNodeID)) continue;
var dstItem = FindOrCreateNodeItem(
nodeIdToControlNode[c.OutputNodeID],
(item) => (item.Input != null && item.Input.Enabled && item is ShaderFragmentNodeItem && ((ShaderFragmentNodeItem)item).Name.Equals(c.OutputParameterName)),
() => new ShaderFragmentNodeItem(c.OutputParameterName, c.Type, null, true, false));
Node srcNode;
if (!newNodes.ContainsKey(c.VisualNodeId))
{
srcNode = _nodeCreator.CreateInterfaceNode("Inputs", InterfaceDirection.In);
MatchVisualNode(srcNode, nodeGraph.VisualNodes[c.VisualNodeId]);
newNodes[c.VisualNodeId] = srcNode;
graph.AddNode(srcNode);
}
else
srcNode = newNodes[c.VisualNodeId];
var srcItem = FindOrCreateNodeItem(
srcNode,
(item) => {
var i = item as ShaderFragmentInterfaceParameterItem;
if (i==null) return false;
return i.Name.Equals(c.Name) && i.Type.Equals(c.Type) && i.Semantic.Equals(c.Semantic);
},
() => new ShaderFragmentInterfaceParameterItem(c.Name, c.Type, InterfaceDirection.In) { Semantic = c.Semantic, Default = c.Default });
graph.Connect(srcItem.Output, dstItem.Input);
}
// --------< Output Parameter Connections >--------
foreach (var c in nodeGraph.OutputParameterConnections)
{
if (!nodeIdToControlNode.ContainsKey(c.InputNodeID)) continue;
var srcItem = FindOrCreateNodeItem(
nodeIdToControlNode[c.InputNodeID],
(item) => (item.Output != null && item.Output.Enabled && item is ShaderFragmentNodeItem && ((ShaderFragmentNodeItem)item).Name.Equals(c.InputParameterName)),
() => new ShaderFragmentNodeItem(c.InputParameterName, c.Type, null, false, true));
Node dstNode;
if (!newNodes.ContainsKey(c.VisualNodeId))
{
dstNode = _nodeCreator.CreateInterfaceNode("Outputs", InterfaceDirection.Out);
MatchVisualNode(dstNode, nodeGraph.VisualNodes[c.VisualNodeId]);
newNodes[c.VisualNodeId] = dstNode;
graph.AddNode(dstNode);
}
else
dstNode = newNodes[c.VisualNodeId];
var dstItem = FindOrCreateNodeItem(
dstNode,
(item) =>
{
var i = item as ShaderFragmentInterfaceParameterItem;
if (i == null) return false;
return i.Name.Equals(c.Name) && i.Type.Equals(c.Type) && i.Semantic.Equals(c.Semantic);
},
() => new ShaderFragmentInterfaceParameterItem(c.Name, c.Type, InterfaceDirection.Out) { Semantic = c.Semantic });
graph.Connect(srcItem.Output, dstItem.Input);
}
}
}