1 files changed, 32 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/DdxOpNode.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/DdxOpNode.cs
new file mode 100644
index 00000000..53b8821d
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/DdxOpNode.cs
@@ -0,0 +1,32 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+namespace AmplifyShaderEditor
+{
+	[System.Serializable]
+	[NodeAttributes( "DDX", "Math Operators", "Approximate partial derivative with respect to window-space X" )]
+	public sealed class DdxOpNode : SingleInputOp
+	{
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			m_opName = "ddx";
+			m_previewShaderGUID = "b54ea73d5568b3540977557813eb9c3c";
+			m_inputPorts[ 0 ].CreatePortRestrictions( WirePortDataType.OBJECT,
+														WirePortDataType.FLOAT,
+														WirePortDataType.FLOAT2,
+														WirePortDataType.FLOAT3,
+														WirePortDataType.FLOAT4,
+														WirePortDataType.COLOR,
+														WirePortDataType.INT );
+		}
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
+		{
+			if( dataCollector.IsFragmentCategory )
+				return base.GenerateShaderForOutput( outputId, ref dataCollector, ignoreLocalvar );
+			else
+				return m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
+		}
+	}
+}