1 files changed, 99 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Textures/BlendNormalsNode.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Textures/BlendNormalsNode.cs
new file mode 100644
index 00000000..6c063c65
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Textures/BlendNormalsNode.cs
@@ -0,0 +1,99 @@
+// 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( "Blend Normals", "Textures", "Blend Normals" )]
+	public class BlendNormalsNode : ParentNode
+	{
+		public readonly static string[] ModeListStr = { "Tangent Normals", "Reoriented Tangent Normals", "Reoriented World Normals" };
+		public readonly static int[] ModeListInt = { 0, 1, 2 };
+
+		[SerializeField]
+		public int m_selectedMode = 0;
+
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddInputPort( WirePortDataType.FLOAT3, false, "Normal A" );
+			AddInputPort( WirePortDataType.FLOAT3, false, "Normal B" );
+			AddInputPort( WirePortDataType.FLOAT3, false, "Vertex Normal" );
+			m_inputPorts[ 2 ].Visible = false;
+			AddOutputPort( WirePortDataType.FLOAT3, "XYZ" );
+			m_useInternalPortData = true;
+			m_previewShaderGUID = "bcdf750ff5f70444f98b8a3efa50dc6f";
+		}
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
+		{
+			if( !( dataCollector.IsTemplate && dataCollector.IsSRP ) )
+				dataCollector.AddToIncludes( UniqueId, Constants.UnityStandardUtilsLibFuncs );
+
+			string _inputA = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
+			string _inputB = m_inputPorts[ 1 ].GeneratePortInstructions( ref dataCollector );
+			string result = "BlendNormals( " + _inputA + " , " + _inputB + " )";
+
+			if( dataCollector.IsTemplate && dataCollector.IsSRP )
+			{
+				switch( m_selectedMode )
+				{
+					default:
+					case 0:
+					result = "BlendNormal( " + _inputA + " , " + _inputB + " )";
+					break;
+					case 1:
+					result = "BlendNormalRNM( " + _inputA + " , " + _inputB + " )";
+					break;
+					case 2:
+					string inputC = m_inputPorts[ 2 ].GeneratePortInstructions( ref dataCollector );
+					result = "BlendNormalWorldspaceRNM( " + _inputA + " , " + _inputB + ", " + inputC + " )";
+					break;
+				}
+			}
+			return CreateOutputLocalVariable( 0, result, ref dataCollector );
+		}
+
+		public override void DrawProperties()
+		{
+			base.DrawProperties();
+			if( ContainerGraph.IsSRP )
+			{
+				NodeUtils.DrawPropertyGroup( ref m_propertiesFoldout, Constants.ParameterLabelStr, () =>
+				{
+					EditorGUI.BeginChangeCheck();
+					m_selectedMode = EditorGUILayoutIntPopup( "Mode", m_selectedMode, ModeListStr, ModeListInt );
+					if( EditorGUI.EndChangeCheck() )
+					{
+						if( m_selectedMode == 2 )
+						{
+							m_inputPorts[ 2 ].Visible = true;
+						}
+						else
+						{
+							m_inputPorts[ 2 ].Visible = false;
+						}
+						m_sizeIsDirty = true;
+					}
+				} );
+			}
+		}
+
+		public override void ReadFromString( ref string[] nodeParams )
+		{
+			base.ReadFromString( ref nodeParams );
+			if( UIUtils.CurrentShaderVersion() > 14503 )
+				m_selectedMode = Convert.ToInt32( GetCurrentParam( ref nodeParams ) );
+		}
+
+		public override void WriteToString( ref string nodeInfo, ref string connectionsInfo )
+		{
+			base.WriteToString( ref nodeInfo, ref connectionsInfo );
+			IOUtils.AddFieldValueToString( ref nodeInfo, m_selectedMode );
+		}
+	}
+}