1 files changed, 103 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/ClampOpNode.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/ClampOpNode.cs
new file mode 100644
index 00000000..fe15a01e
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/ClampOpNode.cs
@@ -0,0 +1,103 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+using System;
+
+namespace AmplifyShaderEditor
+{
+	[Serializable]
+	[NodeAttributes( "Clamp", "Math Operators", "Value clamped to the range [min,max]" )]
+	public sealed class ClampOpNode : ParentNode
+	{
+
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue );
+			AddInputPort( WirePortDataType.FLOAT, false, "Min" );
+			AddInputPort( WirePortDataType.FLOAT, false, "Max" );
+			m_inputPorts[ m_inputPorts.Count - 1 ].FloatInternalData = 1;
+			AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
+			m_useInternalPortData = true;
+			m_textLabelWidth = 55;
+			m_previewShaderGUID = "ab6163c4b10bfc84da8e3c486520490a";
+		}
+
+		public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
+		{
+			base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
+			if ( portId == 0 )
+			{
+				m_inputPorts[ 0 ].MatchPortToConnection();
+				m_inputPorts[ 1 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+				m_inputPorts[ 2 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+
+				m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+			}
+			//else
+			//{
+			//	_inputPorts[ portId ].MatchPortToConnection();
+			//}
+		}
+
+		public override void OnConnectedOutputNodeChanges( int outputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
+		{
+			base.OnConnectedOutputNodeChanges( outputPortId, otherNodeId, otherPortId, name, type );
+			if ( outputPortId == 0 )
+			{
+				m_inputPorts[ 0 ].MatchPortToConnection();
+				m_inputPorts[ 1 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+				m_inputPorts[ 2 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+				m_outputPorts[ 0 ].ChangeType( m_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 );
+
+			WirePortDataType valueType = m_inputPorts[ 0 ].ConnectionType();
+			WirePortDataType minType = m_inputPorts[ 1 ].ConnectionType();
+			WirePortDataType maxType = m_inputPorts[ 2 ].ConnectionType();
+
+			string value = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
+			string min = m_inputPorts[ 1 ].GeneratePortInstructions( ref dataCollector );
+			if ( minType != valueType )
+			{
+				min = UIUtils.CastPortType( ref dataCollector, CurrentPrecisionType, new NodeCastInfo( UniqueId, outputId ), null, m_inputPorts[ 1 ].DataType, m_inputPorts[ 0 ].DataType, min );
+			}
+
+			string max = m_inputPorts[ 2 ].GeneratePortInstructions( ref dataCollector );
+			if ( maxType != valueType )
+			{
+				max = UIUtils.CastPortType( ref dataCollector, CurrentPrecisionType, new NodeCastInfo( UniqueId, outputId ), null, m_inputPorts[ 2 ].DataType, m_inputPorts[ 0 ].DataType, max );
+			}
+
+			string result = string.Empty;
+			switch ( valueType )
+			{
+				case WirePortDataType.FLOAT:
+				case WirePortDataType.FLOAT2:
+				case WirePortDataType.FLOAT3:
+				case WirePortDataType.FLOAT4:
+				case WirePortDataType.INT:
+				case WirePortDataType.COLOR:
+				case WirePortDataType.OBJECT:
+				{
+					result = "clamp( " + value + " , " + min + " , " + max + " )";
+				}
+				break;
+				case WirePortDataType.FLOAT3x3:
+				case WirePortDataType.FLOAT4x4:
+				{
+					return UIUtils.InvalidParameter( this );
+				}
+			}
+
+			RegisterLocalVariable( 0, result, ref dataCollector, "clampResult" + OutputId );
+			return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+		}
+
+	}
+}