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122 lines
5.1 KiB
122 lines
5.1 KiB
// Amplify Shader Editor - Visual Shader Editing Tool
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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using System;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes( "Smoothstep", "Math Operators", "Returns a smooth Hermite interpolation between 0 and 1, if input is in the range [min, max]." )]
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public sealed class SmoothstepOpNode : ParentNode
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{
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//[UnityEngine.SerializeField]
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//private WirePortDataType m_mainDataType = WirePortDataType.FLOAT;
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private int m_alphaPortId = 0;
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private int m_minPortId = 0;
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private int m_maxPortId = 0;
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private const string SmoothstepOpFormat = "smoothstep( {0} , {1} , {2})";//min max alpha
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protected override void CommonInit( int uniqueId )
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{
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base.CommonInit( uniqueId );
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AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue, -1, MasterNodePortCategory.Fragment, 0 );
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m_alphaPortId = m_inputPorts.Count - 1;
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AddInputPort( WirePortDataType.FLOAT, false, "Min", -1, MasterNodePortCategory.Fragment, 1 );
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m_minPortId = m_inputPorts.Count - 1;
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AddInputPort( WirePortDataType.FLOAT, false, "Max", -1, MasterNodePortCategory.Fragment, 2 );
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m_maxPortId = m_inputPorts.Count - 1;
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GetInputPortByUniqueId( m_maxPortId ).FloatInternalData = 1;
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AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
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m_useInternalPortData = true;
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m_textLabelWidth = 55;
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m_previewShaderGUID = "954cdd40a7a528344a0a4d3ff1db5176";
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}
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public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
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{
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base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
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if( portId == 0 )
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{
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m_inputPorts[ 0 ].MatchPortToConnection();
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m_inputPorts[ 1 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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m_inputPorts[ 2 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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}
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}
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public override void OnConnectedOutputNodeChanges( int outputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
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{
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base.OnConnectedOutputNodeChanges( outputPortId, otherNodeId, otherPortId, name, type );
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if( outputPortId == 0 )
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{
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m_inputPorts[ 0 ].MatchPortToConnection();
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m_inputPorts[ 1 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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m_inputPorts[ 2 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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}
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}
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//public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
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//{
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// base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
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// UpdateConnection( portId );
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//}
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//public override void OnConnectedOutputNodeChanges( int inputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
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//{
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// base.OnConnectedOutputNodeChanges( inputPortId, otherNodeId, otherPortId, name, type );
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// UpdateConnection( inputPortId );
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//}
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//public override void OnInputPortDisconnected( int portId )
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//{
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// base.OnInputPortDisconnected( portId );
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// UpdateConnection( portId );
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//}
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//void UpdateConnection( int portId )
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//{
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// WirePortDataType type1 = WirePortDataType.FLOAT;
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// if( m_inputPorts[ m_minPortId ].IsConnected )
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// type1 = m_inputPorts[ m_minPortId ].GetOutputConnection( 0 ).DataType;
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// WirePortDataType type2 = WirePortDataType.FLOAT;
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// if( m_inputPorts[ m_maxPortId ].IsConnected )
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// type2 = m_inputPorts[ m_maxPortId ].GetOutputConnection( 0 ).DataType;
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// m_mainDataType = UIUtils.GetPriority( type1 ) > UIUtils.GetPriority( type2 ) ? type1 : type2;
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// if( !m_inputPorts[ m_minPortId ].IsConnected && !m_inputPorts[ m_maxPortId ].IsConnected && m_inputPorts[ m_alphaPortId ].IsConnected )
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// m_mainDataType = m_inputPorts[ m_alphaPortId ].GetOutputConnection( 0 ).DataType;
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// m_inputPorts[ m_minPortId ].ChangeType( m_mainDataType, false );
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// m_inputPorts[ m_maxPortId ].ChangeType( m_mainDataType, false );
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// if( m_inputPorts[ m_alphaPortId ].IsConnected && m_inputPorts[ m_alphaPortId ].GetOutputConnection( 0 ).DataType == WirePortDataType.FLOAT )
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// m_inputPorts[ m_alphaPortId ].ChangeType( WirePortDataType.FLOAT, false );
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// else
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// m_inputPorts[ m_alphaPortId ].ChangeType( m_mainDataType, false );
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// m_outputPorts[ 0 ].ChangeType( m_mainDataType, false );
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//}
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public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalVar )
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{
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if( m_outputPorts[ 0 ].IsLocalValue( dataCollector.PortCategory ) )
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return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
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string aValue = m_inputPorts[ m_minPortId ].GeneratePortInstructions( ref dataCollector );
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string bValue = m_inputPorts[ m_maxPortId ].GeneratePortInstructions( ref dataCollector );
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string interp = m_inputPorts[ m_alphaPortId ].GeneratePortInstructions( ref dataCollector );
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string result = string.Format( SmoothstepOpFormat, aValue, bValue, interp );
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RegisterLocalVariable( 0, result, ref dataCollector, "smoothstepResult" + OutputId );
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return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
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}
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}
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}
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