升级6.4.升级水，升级天气

Packages/com.waveharmonic.crest/Runtime/Scripts/Debug/DebugGUI.cs

@@ -17,11 +17,6 @@ namespace WaveHarmonic.Crest
     [AddComponentMenu(Constants.k_MenuPrefixDebug + "Debug GUI")]
     sealed class DebugGUI : ManagedBehaviour<WaterRenderer>
     {
-        [SerializeField, HideInInspector]
-#pragma warning disable 414
-        int _Version = 0;
-#pragma warning restore 414
-
         [SerializeField]
         bool _ShowWaterData = true;
 
@@ -136,6 +131,7 @@ namespace WaveHarmonic.Crest
         {
             // Safe as there should only be one instance at a time.
             Helpers.Destroy(s_DebugArrayMaterial);
+            s_DebugArrayMaterial = null;
         }
 
         Vector3 _ViewerPositionLastFrame;