Convolution filter : fix preview

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Presenters/ConvolutionFilterNodePresenter.cs

 
             EditorGUILayout.BeginVertical();
             EditorGUI.BeginChangeCheck();
-            
+
+            KernelPresets kernelPresets = KernelPresets.Presets;
+            kernelPresets = (KernelPresets)EditorGUILayout.EnumPopup(kernelPresets);
+            ApplyPreset(kernelPresets, ref values, ref divisor);
+
             for (int col = 0; col < 5; ++col)
             {
                 EditorGUILayout.BeginHorizontal();
             EditorGUILayout.Space();
 
             divisor = EditorGUILayout.FloatField("Divisor", divisor);
-            EditorGUILayout.Space();
-
-            KernelPresets kernelPresets = KernelPresets.Presets;
-            kernelPresets = (KernelPresets)EditorGUILayout.EnumPopup(kernelPresets);
-            ApplyPreset(kernelPresets, ref values, ref divisor);
 
             EditorGUILayout.EndVertical();
 

MaterialGraphProject/Assets/UnityShaderEditor/Runtime/Nodes/Art/Filters/ConvolutionFilterNode.cs

 
         public void SetConvolutionDivisor(float value)
         {
+            if (value == m_ConvolutionFilter[6].w)
+                return;
+
+
+            if (onModified != null)
+                onModified(this, ModificationScope.Node);
         }
 
         public float GetConvolutionWeight(int row, int col)
                 string propGuid = guid.ToString().Replace("-", "_");
                 for (int i = 0; i < kNumConvolutionVector4; ++i)
                 {
-                    visitor.AddShaderChunk(precision + " " + GetPropertyName(i, propGuid) + ";", true);
+                    visitor.AddShaderChunk(precision + "4 " + GetPropertyName(i, propGuid) + ";", true);
                 }
             }
         }
             string samplerName = GetSlotValue(InputSlot1Id, generationMode);
             
             //uv
-            //string input2Value = GetSlotValue(InputSlot2Id, generationMode);
             var uvSlot = FindInputSlot<MaterialSlot>(InputSlot2Id);
             if (uvSlot == null)
                 return;
 
             //texelSize
             string texelSize = samplerName + "_TexelSize.xy";
-
             visitor.AddShaderChunk(precision + "4 " + GetVariableNameForSlot(OutputSlotId) + " = " + GetFunctionCallBody(samplerName, baseUV, texelSize) + ";", true);
 
 
                     int valueIndex = col * 5 + row;
                     int vectorIndex = valueIndex / 4;
                     int vectorOffset = valueIndex % 4;
-
-            outputString.AddShaderChunk("fetches *= weights6.w;", false);
+            outputString.AddShaderChunk("fetches /= weights6.w;", false);
             outputString.AddShaderChunk("return fetches;", false);
 
             outputString.Deindent();