Add Matrix Determinant node

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Matrix/MatrixDeterminantNode.cs

+using System.Reflection;
+using UnityEngine;
+
+namespace UnityEditor.ShaderGraph
+{
+    [Title("Math", "Matrix", "Matrix Determinant")]
+    public class MatrixDeterminantNode : CodeFunctionNode
+    {
+        public MatrixDeterminantNode()
+        {
+            name = "Matrix Determinant";
+        }
+
+        protected override MethodInfo GetFunctionToConvert()
+        {
+            return GetType().GetMethod("Unity_MatrixDeterminant", BindingFlags.Static | BindingFlags.NonPublic);
+        }
+
+        static string Unity_MatrixDeterminant(
+            [Slot(0, Binding.None)] DynamicDimensionMatrix In,
+            [Slot(1, Binding.None)] out Vector1 Out)
+        {
+            return
+                @"
+{
+    Out = determinant(In);
+}
+";
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Matrix/MatrixDeterminantNode.cs.meta

+fileFormatVersion: 2
+guid: 41d69945fb0fa45ec8e14292dfb9074d
+timeCreated: 1495542985
+licenseType: Pro
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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+  assetBundleVariant: