1 files changed, 29 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Vertex/Tessellation/TessellationParentNode.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Vertex/Tessellation/TessellationParentNode.cs
new file mode 100644
index 00000000..be14febc
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Vertex/Tessellation/TessellationParentNode.cs
@@ -0,0 +1,29 @@
+namespace AmplifyShaderEditor
+{
+	public class TessellationParentNode : ParentNode
+	{
+
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			m_useInternalPortData = true;
+		}
+
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
+		{
+			if ( dataCollector.PortCategory != MasterNodePortCategory.Tessellation )
+			{
+				UIUtils.ShowMessage( UniqueId, m_nodeAttribs.Name + " can only be used on Master Node Tessellation port" );
+				return "(-1)";
+			}
+
+			return BuildTessellationFunction( ref dataCollector );
+		}
+
+		protected virtual string BuildTessellationFunction( ref MasterNodeDataCollector dataCollector )
+		{
+			return string.Empty;
+		}
+	}
+}