missed files

MaterialGraphProject/Assets/UnityShaderEditor/Runtime/Nodes/Input/Geometry/BitangentNode.cs

+using UnityEngine.Graphing;
+
+namespace UnityEngine.MaterialGraph
+{
+    public interface IMayRequireBitangent
+    {
+        NeededCoordinateSpace RequiresBitangent();
+    }
+
+    [Title("Input/Geometry/World Bitangent")]
+    public class BitangentNode : AbstractMaterialNode, IMayRequireBitangent
+    {
+        public const int kOutputSlotId = 0;
+        public const string kOutputSlotName = "Bitangent";
+
+        public BitangentNode()
+        {
+            name = "Bitangent";
+            UpdateNodeAfterDeserialization();
+        }
+
+        public sealed override void UpdateNodeAfterDeserialization()
+        {
+            AddSlot(new MaterialSlot(kOutputSlotId, kOutputSlotName, kOutputSlotName, SlotType.Output, SlotValueType.Vector3, new Vector4(0, 0, 1, 1)));
+            RemoveSlotsNameNotMatching(new[] { kOutputSlotId });
+        }
+
+        public override bool hasPreview
+        {
+            get { return true; }
+        }
+
+        public override PreviewMode previewMode
+        {
+            get { return PreviewMode.Preview3D; }
+        }
+
+        public override string GetVariableNameForSlot(int slotId)
+        {
+            return ShaderGeneratorNames.WorldSpaceSpaceBiTangent;
+        }
+
+        public NeededCoordinateSpace RequiresBitangent()
+        {
+            return NeededCoordinateSpace.World;
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Runtime/Nodes/Input/Geometry/BitangentNode.cs.meta

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+guid: 25ded6c13e7523d48935f8bd1b9afcb6
+timeCreated: 1481041579
+licenseType: Pro
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+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
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