Added nicer debug output in VS watch panel

ScriptableRenderPipeline/Core/Volume/VolumeParameter.cs

 using System;
 using System.Collections.ObjectModel;
+using System.Diagnostics;
 using System.Linq;
 using System.Reflection;
 
     // of the following is a bit hacky...
     public abstract class VolumeParameter
     {
+        public const string k_DebuggerDisplay = "{m_Value} ({m_OverrideState})";
+
         [SerializeField]
         protected bool m_OverrideState;
 
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public class VolumeParameter<T> : VolumeParameter
     {
         [SerializeField]
             }
         }
 
+        public override string ToString()
+        {
+            return string.Format("{0} ({1})", value, overrideState);
+        }
+
         //
         // Implicit conversion; assuming the following:
         //
     //  public enum MyEnum { One, Two }
     //
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class IntParameter : VolumeParameter<int>
     {
         public override void Interp(int from, int to, float t)
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class ClampedIntParameter : VolumeParameter<int>
     {
         public ParameterClampMode clampMode = ParameterClampMode.MinMax;
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class InstantClampedIntParameter : VolumeParameter<int>
     {
         public ParameterClampMode clampMode = ParameterClampMode.MinMax;
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class FloatParameter : VolumeParameter<float>
     {
         public override void Interp(float from, float to, float t)
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class ClampedFloatParameter : VolumeParameter<float>
     {
         public ParameterClampMode clampMode = ParameterClampMode.MinMax;
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class InstantClampedFloatParameter : VolumeParameter<float>
     {
         public ParameterClampMode clampMode = ParameterClampMode.MinMax;
     }
 
     // Holds a min & a max values clamped in a range (MinMaxSlider in the editor)
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class RangeParameter : VolumeParameter<Vector2>
     {
         public float min = 0;
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class InstantRangeParameter : VolumeParameter<Vector2>
     {
         public float min = 0;
     }
 
     // 32-bit RGBA
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class ColorParameter : VolumeParameter<Color>
     {
         public bool hdr = false;
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class Vector2Parameter : VolumeParameter<Vector2>
     {
         public override void Interp(Vector2 from, Vector2 to, float t)
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class Vector3Parameter : VolumeParameter<Vector3>
     {
         public override void Interp(Vector3 from, Vector3 to, float t)
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public sealed class Vector4Parameter : VolumeParameter<Vector4>
     {
         public override void Interp(Vector4 from, Vector4 to, float t)
         }
     }
 
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
-    [Serializable]
+    [Serializable, DebuggerDisplay(k_DebuggerDisplay)]
     public class ObjectParameter<T> : VolumeParameter<T>
     {
         internal ReadOnlyCollection<VolumeParameter> parameters { get; private set; }