diff --git a/.gitignore b/.gitignore
index 8af868e..789f6cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,6 +47,7 @@ ExportedObj/
 *.pidb.meta
 *.pdb.meta
 *.mdb.meta
+*.meta
 
 # Unity3D generated file on crash reports
 sysinfo.txt
diff --git a/Runtime/Scripts/Fragment/FragmentData.cs b/Runtime/Scripts/Fragment/FragmentData.cs
index fccd201..d9b786c 100644
--- a/Runtime/Scripts/Fragment/FragmentData.cs
+++ b/Runtime/Scripts/Fragment/FragmentData.cs
@@ -101,6 +101,7 @@ public FragmentData(Mesh mesh)
     {
         var positions = mesh.vertices;
         var normals = mesh.normals;
+        var tangents = mesh.tangents;
         var uv = mesh.uv;
 
         this.Vertices = new List<MeshVertex>(mesh.vertexCount);
@@ -111,7 +112,7 @@ public FragmentData(Mesh mesh)
         // Add mesh vertices
         for (int i = 0; i < positions.Length; i++)
         {
-            this.Vertices.Add(new MeshVertex(positions[i], normals[i], uv[i]));
+            this.Vertices.Add(new MeshVertex(positions[i], normals[i], tangents[i], uv[i]));
         }
 
         // Only meshes with one submesh are currently supported
@@ -137,9 +138,9 @@ public FragmentData(Mesh mesh)
     /// <param name="normal">The vertex normal</param>
     /// <param name="uv">The vertex UV coordinates</param>
     /// <returns>Returns the index of the vertex in the cutVertices array</returns>
-    public void AddCutFaceVertex(Vector3 position, Vector3 normal, Vector2 uv)
+    public void AddCutFaceVertex(Vector3 position, Vector3 normal, Vector4 tangent, Vector2 uv)
     {
-        var vertex = new MeshVertex(position, normal, uv);
+        var vertex = new MeshVertex(position, normal, tangent, uv);
 
         // Add the vertex to both the normal mesh vertex data and the cut face vertex data
         // The vertex on the cut face will have different normal/uv coordinates which are
@@ -290,6 +291,7 @@ public Mesh ToMesh()
         {
             new VertexAttributeDescriptor(VertexAttribute.Position, VertexAttributeFormat.Float32, 3),
             new VertexAttributeDescriptor(VertexAttribute.Normal, VertexAttributeFormat.Float32, 3),
+            new VertexAttributeDescriptor(VertexAttribute.Tangent, VertexAttributeFormat.Float32, 4),
             new VertexAttributeDescriptor(VertexAttribute.TexCoord0, VertexAttributeFormat.Float32, 2),
         };
 
diff --git a/Runtime/Scripts/Fragment/MeshSlicer.cs b/Runtime/Scripts/Fragment/MeshSlicer.cs
index e728427..6637e95 100644
--- a/Runtime/Scripts/Fragment/MeshSlicer.cs
+++ b/Runtime/Scripts/Fragment/MeshSlicer.cs
@@ -275,11 +275,16 @@ private static void SplitTriangle(int v1_idx,
             var uv13 = v1.uv + s13 * (v3.uv - v1.uv);
             var uv23 = v2.uv + s23 * (v3.uv - v2.uv);
 
+            var tang13 = Vector4.Lerp(v2.tangent, v3.tangent, s13).normalized;
+            tang13.w = Mathf.Lerp(v2.tangent.w, v3.tangent.w, s13);
+            var tang23 = Vector4.Lerp(v2.tangent, v3.tangent, s23).normalized;
+            tang23.w = Mathf.Lerp(v2.tangent.w, v3.tangent.w, s23);
+
             // Add vertices/normals/uv for the intersection points to each mesh
-            topSlice.AddCutFaceVertex(v13, norm13, uv13);
-            topSlice.AddCutFaceVertex(v23, norm23, uv23);
-            bottomSlice.AddCutFaceVertex(v13, norm13, uv13);
-            bottomSlice.AddCutFaceVertex(v23, norm23, uv23);
+            topSlice.AddCutFaceVertex(v13, norm13, tang13, uv13);
+            topSlice.AddCutFaceVertex(v23, norm23, tang13, uv23);
+            bottomSlice.AddCutFaceVertex(v13, norm13, tang23, uv13);
+            bottomSlice.AddCutFaceVertex(v23, norm23, tang23, uv23);
 
             // Indices for the intersection vertices (for the original mesh data)
             int index13_A = topSlice.Vertices.Count - 2;
diff --git a/Runtime/Scripts/Fragment/MeshVertex.cs b/Runtime/Scripts/Fragment/MeshVertex.cs
index 4264ea1..f4edda0 100644
--- a/Runtime/Scripts/Fragment/MeshVertex.cs
+++ b/Runtime/Scripts/Fragment/MeshVertex.cs
@@ -8,12 +8,14 @@ public struct MeshVertex
 {
     public Vector3 position;
     public Vector3 normal;
+    public Vector4 tangent;
     public Vector2 uv;
 
     public MeshVertex(Vector3 position)
     {
         this.position = position;
         this.normal = Vector3.zero;
+        this.tangent = Vector4.zero;
         this.uv = Vector2.zero;
     }
 
@@ -21,6 +23,15 @@ public MeshVertex(Vector3 position, Vector3 normal, Vector2 uv)
     {
         this.position = position;
         this.normal = normal;
+        this.tangent = Vector4.zero;
+        this.uv = uv;
+    }
+
+    public MeshVertex(Vector3 position, Vector3 normal, Vector4 tangents, Vector2 uv)
+    {
+        this.position = position;
+        this.normal = normal;
+        this.tangent = tangents;
         this.uv = uv;
     }