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// Amplify Shader Editor - Visual Shader Editing Tool
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
using UnityEngine;
using System;
using UnityEditor;
namespace AmplifyShaderEditor
{
[Serializable]
[NodeAttributes( "Layered Blend", "Miscellaneous", "Mix all channels through interpolation factors", null, KeyCode.None, true )]
public sealed class LayeredBlendNode : WeightedAvgNode
{
protected override void CommonInit( int uniqueId )
{
base.CommonInit( uniqueId );
m_inputPorts[ 1 ].Name = "Layer Base";
AddInputPort( WirePortDataType.FLOAT, false, string.Empty );
for ( int i = 2; i < m_inputPorts.Count; i++ )
{
m_inputPorts[ i ].Name = AmountsStr[ i - 2 ];
}
m_inputData = new string[ 6 ];
m_minimumSize = 2;
UpdateConnection( 0 );
m_previewShaderGUID = "48faca2f6506fc44c97adb1e2b79c37d";
}
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 );
GetInputData( ref dataCollector, ignoreLocalvar );
string result = string.Empty;
string localVarName = "layeredBlendVar" + OutputId;
dataCollector.AddLocalVariable( UniqueId, CurrentPrecisionType, m_inputPorts[ 0 ].DataType, localVarName, m_inputData[ 0 ] );
if ( m_activeCount == 1 )
{
result = m_inputData[ 0 ];
}
else if ( m_activeCount == 2 )
{
result += "lerp( " + m_inputData[ 1 ] + "," + m_inputData[ 2 ] + " , " + localVarName + " )";
}
else
{
result = m_inputData[ 1 ];
for ( int i = 1; i < m_activeCount; i++ )
{
result = "lerp( " + result + " , " + m_inputData[ i + 1 ] + " , " + localVarName + Constants.VectorSuffixes[ i - 1 ] + " )";
}
}
result = UIUtils.AddBrackets( result );
RegisterLocalVariable( 0, result, ref dataCollector, "layeredBlend" + OutputId );
return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
}
}
}
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