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