1 files changed, 45 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/OneMinusNode.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/OneMinusNode.cs
new file mode 100644
index 00000000..10792114
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/OneMinusNode.cs
@@ -0,0 +1,45 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+using System;
+using UnityEngine;
+
+namespace AmplifyShaderEditor
+{
+	[Serializable]
+	[NodeAttributes( "One Minus", "Math Operators", "1 - input value", null, KeyCode.O )]
+	public sealed class OneMinusNode : ParentNode
+	{
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue );
+			AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
+			m_useInternalPortData = true;
+			m_previewShaderGUID = "bed5300b92e7bb0419d0f4accb853312";
+		}
+
+		public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
+		{
+			base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
+			m_inputPorts[ 0 ].MatchPortToConnection();
+			m_outputPorts[ 0 ].ChangeType( InputPorts[ 0 ].DataType, false );
+		}
+
+		public override void OnConnectedOutputNodeChanges( int outputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
+		{
+			base.OnConnectedOutputNodeChanges( outputPortId, otherNodeId, otherPortId, name, type );
+			m_inputPorts[ 0 ].MatchPortToConnection();
+			m_outputPorts[ 0 ].ChangeType( InputPorts[ 0 ].DataType, false );
+		}
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
+		{
+			if ( m_outputPorts[ 0 ].IsLocalValue( dataCollector.PortCategory ) )
+				return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+
+			string result = "( 1.0 - " + m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector ) + " )";
+			return CreateOutputLocalVariable( 0, result, ref dataCollector );
+		}
+	}
+}