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Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/SRP/ExposureNode.cs

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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( "Exposure", "Lighting", "Get camera exposure value." )]
+	public sealed class Exposure : ParentNode
+	{		
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
+		}
+
+		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 );
+			
+			bool isHDRP = ( dataCollector.CurrentSRPType == TemplateSRPType.HDRP );
+			bool isURP17xOrAbove = ( dataCollector.CurrentSRPType == TemplateSRPType.URP && ASEPackageManagerHelper.CurrentSRPVersion >= ( int )ASESRPBaseline.ASE_SRP_17 );
+			string result;
+
+			if ( isHDRP || isURP17xOrAbove )
+			{
+				result = "GetCurrentExposureMultiplier()";
+			}
+			else
+			{
+				result = "( 1.0 )";
+			}
+			
+			return CreateOutputLocalVariable( 0, result, ref dataCollector );
+		}
+	}
+}