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// Amplify Shader Editor - Visual Shader Editing Tool
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
using System;
using UnityEngine;
using UnityEditor;
namespace AmplifyShaderEditor
{
[Serializable]
[NodeAttributes( "Linear Depth", "Miscellaneous", "Converts depth values given on logarithmic space to linear" )]
public sealed class LinearDepthNode : ParentNode
{
private readonly string[] LinearModeLabels = { "Eye Space", "0-1 Space" };
private const string LinearEyeFuncFormat = "LinearEyeDepth({0})";
private const string Linear01FuncFormat = "Linear01Depth({0})";
private const string LinerValName = "depthToLinear";
private const string ViewSpaceLabel = "View Space";
private UpperLeftWidgetHelper m_upperLeftWidget = new UpperLeftWidgetHelper();
[SerializeField]
private int m_currentOption = 0;
protected override void CommonInit( int uniqueId )
{
base.CommonInit( uniqueId );
AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue );
AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
m_autoWrapProperties = true;
m_hasLeftDropdown = true;
m_previewShaderGUID = "2b0785cc8b854974ab4e45419072705a";
UpdateFromOption();
}
public override void Destroy()
{
base.Destroy();
m_upperLeftWidget = null;
}
void UpdateFromOption()
{
m_previewMaterialPassId = m_currentOption;
SetAdditonalTitleText( string.Format( Constants.SubTitleSpaceFormatStr, LinearModeLabels[ m_currentOption ] ) );
}
public override void Draw( DrawInfo drawInfo )
{
base.Draw( drawInfo );
EditorGUI.BeginChangeCheck();
m_currentOption = m_upperLeftWidget.DrawWidget( this, m_currentOption, LinearModeLabels );
if( EditorGUI.EndChangeCheck() )
{
UpdateFromOption();
}
}
public override void DrawProperties()
{
base.DrawProperties();
EditorGUI.BeginChangeCheck();
m_currentOption = EditorGUILayoutPopup( ViewSpaceLabel, m_currentOption, LinearModeLabels );
if( EditorGUI.EndChangeCheck() )
{
SetAdditonalTitleText( string.Format( Constants.SubTitleSpaceFormatStr, LinearModeLabels[ m_currentOption ] ) );
}
}
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 );
base.GenerateShaderForOutput( outputId, ref dataCollector, ignoreLocalvar );
string value = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
value = string.Format( (( m_currentOption == 0 ) ? LinearEyeFuncFormat : Linear01FuncFormat), value );
RegisterLocalVariable( 0, value, ref dataCollector, LinerValName + OutputId );
return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
}
public override void WriteToString( ref string nodeInfo, ref string connectionsInfo )
{
base.WriteToString( ref nodeInfo, ref connectionsInfo );
IOUtils.AddFieldValueToString( ref nodeInfo, m_currentOption );
}
public override void ReadFromString( ref string[] nodeParams )
{
base.ReadFromString( ref nodeParams );
int.TryParse( GetCurrentParam( ref nodeParams ), out m_currentOption );
UpdateFromOption();
}
}
}
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