Added transparency parameters on LitTessellation.shader

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Editor/LitUI.cs

 
             EditorGUI.indentLevel--;
 
-            EditorGUILayout.Space();
-            EditorGUILayout.LabelField(Styles.TransparencyInputsText, EditorStyles.boldLabel);
-
-            ++EditorGUI.indentLevel;
+                EditorGUILayout.Space();
+                EditorGUILayout.LabelField(Styles.TransparencyInputsText, EditorStyles.boldLabel);
+                ++EditorGUI.indentLevel;
+
                 m_MaterialEditor.ShaderProperty(refractionMode, Styles.refractionModeText);
                 var mode = (Lit.RefractionMode)refractionMode.floatValue;
                 if (mode != Lit.RefractionMode.None)
                     m_MaterialEditor.ShaderProperty(atDistance, Styles.atDistanceText);
                     --EditorGUI.indentLevel;
                 }
+                --EditorGUI.indentLevel;
-            --EditorGUI.indentLevel;
         }
 
         private void DoEmissiveGUI(Material material)

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitTessellation.shader

         [ToggleOff]  _AlphaCutoffEnable("Alpha Cutoff Enable", Float) = 0.0
         _AlphaCutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5
 
+        // Transparency
+        [Enum(None, 0, ThickPlane, 1, ThickSphere, 2, ThinPlane, 3)]_RefractionMode("Refraction Mode", Int) = 0
+        _IOR("Indice Of Refraction", Range(1.0, 2.5)) = 1.0
+        _ThicknessMultiplier("Thickness Multiplier", Float) = 1.0
+        _TransmittanceColor("Transmittance Color", Color) = (1.0, 1.0, 1.0)
+        _ATDistance("Transmittance Absorption Distance", Float) = 1.0
+
         // Stencil state
         [HideInInspector] _StencilRef("_StencilRef", Int) = 2 // StencilLightingUsage.RegularLighting  (fixed at compile time)