1 files changed, 37 insertions, 0 deletions
diff --git a/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/Vertex/BitangentVertexDataNode.cs b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/Vertex/BitangentVertexDataNode.cs
new file mode 100644
index 00000000..828a4993
--- /dev/null
+++ b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/Vertex/BitangentVertexDataNode.cs
@@ -0,0 +1,37 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+namespace AmplifyShaderEditor
+{
+	[System.Serializable]
+	[NodeAttributes( "Vertex Bitangent", "Vertex Data", "Calculated bitangent vector in object space, can be used in both local vertex offset and fragment outputs. Already has tangent sign and object transform into account" )]
+	public sealed class BitangentVertexDataNode : ParentNode
+	{
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddOutputVectorPorts( WirePortDataType.FLOAT3, "XYZ" );
+			m_drawPreviewAsSphere = true;
+			m_previewShaderGUID = "76873532ab67d2947beaf07151383cbe";
+		}
+
+		public override void PropagateNodeData( NodeData nodeData, ref MasterNodeDataCollector dataCollector )
+		{
+			base.PropagateNodeData( nodeData, ref dataCollector );
+			dataCollector.DirtyNormal = true;
+		}
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalVar )
+		{
+			if ( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
+			{
+				dataCollector.ForceNormal = true;
+				dataCollector.AddToInput( UniqueId, SurfaceInputs.WORLD_NORMAL, CurrentPrecisionType );
+				dataCollector.AddToInput( UniqueId, SurfaceInputs.INTERNALDATA, addSemiColon: false );
+			}
+
+			string vertexBitangent = GeneratorUtils.GenerateVertexBitangent( ref dataCollector, UniqueId, CurrentPrecisionType );
+			return GetOutputVectorItem( 0, outputId, vertexBitangent );
+		}
+	}
+}