1 files changed, 97 insertions, 0 deletions
diff --git a/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/Misc/LinearDepthNode.cs b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/Misc/LinearDepthNode.cs
new file mode 100644
index 00000000..0193bbc9
--- /dev/null
+++ b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/Misc/LinearDepthNode.cs
@@ -0,0 +1,97 @@
+// 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();
+		}
+	}
+}