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// Amplify Shader Editor - Visual Shader vEditing Tool
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
using UnityEngine;
using UnityEditor;
using System;
namespace AmplifyShaderEditor
{
[NodeAttributes( "Material Quality", "Logical Operators", "Choose between separate branches according to currently selected Quality (SRP only) ", Available = true )]
public class MaterialQualityNode : ParentNode
{
private const string SRPError = "Node intended to be used only on SRP templates as it makes use of keywords defined over that environment.";
private const string MaxKeyword = "MATERIAL_QUALITY_HIGH";
private const string MedKeyword = "MATERIAL_QUALITY_MEDIUM";
private const string MinKeyword = "MATERIAL_QUALITY_LOW";
private const string MaterialPragmas = "#pragma shader_feature " + MaxKeyword + " " + MedKeyword + " " + MinKeyword;
private readonly string[] MaterialCode =
{
"#if defined("+MaxKeyword+")",
"#elif defined("+MedKeyword+")",
"#else",
"#endif"
};
protected override void CommonInit( int uniqueId )
{
base.CommonInit( uniqueId );
AddInputPort( WirePortDataType.FLOAT, false, "High" );
AddInputPort( WirePortDataType.FLOAT, false, "Medium" );
AddInputPort( WirePortDataType.FLOAT, false, "Low" );
AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
m_errorMessageTypeIsError = NodeMessageType.Error;
m_errorMessageTooltip = SRPError;
}
public override void OnNodeLogicUpdate( DrawInfo drawInfo )
{
base.OnNodeLogicUpdate( drawInfo );
if( !ContainerGraph.IsSRP )
{
if( !m_showErrorMessage )
{
m_showErrorMessage = true;
}
}
else
{
if( m_showErrorMessage )
{
m_showErrorMessage = 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 );
dataCollector.AddToDirectives( MaterialPragmas );
string maxQualityValue = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
string medQualityValue = m_inputPorts[ 1 ].GeneratePortInstructions( ref dataCollector );
string minQualityValue = m_inputPorts[ 2 ].GeneratePortInstructions( ref dataCollector );
string localVarName = "currQuality" + OutputId;
dataCollector.AddLocalVariable( UniqueId, CurrentPrecisionType, m_outputPorts[ 0 ].DataType, localVarName, "0" );
//High
dataCollector.AddLocalVariable( UniqueId, MaterialCode[ 0 ], true );
dataCollector.AddLocalVariable( UniqueId, localVarName, maxQualityValue, false, true );
//Medium
dataCollector.AddLocalVariable( UniqueId, MaterialCode[ 1 ], true );
dataCollector.AddLocalVariable( UniqueId, localVarName, medQualityValue, false, true );
//Low
dataCollector.AddLocalVariable( UniqueId, MaterialCode[ 2 ], true );
dataCollector.AddLocalVariable( UniqueId, localVarName, minQualityValue,false,true );
m_outputPorts[ 0 ].SetLocalValue( localVarName, dataCollector.PortCategory );
dataCollector.AddLocalVariable( UniqueId, MaterialCode[ 3 ], true );
return localVarName;
}
}
}
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