diff --git a/Source/Editor/Tools/Terrain/Paint/Mode.cs b/Source/Editor/Tools/Terrain/Paint/Mode.cs
index bf9857bea..03e4a4690 100644
--- a/Source/Editor/Tools/Terrain/Paint/Mode.cs
+++ b/Source/Editor/Tools/Terrain/Paint/Mode.cs
@@ -209,8 +209,7 @@ namespace FlaxEditor.Tools.Terrain.Paint
             public int SplatmapIndex;
             
             /// <summary>
-            /// The splatmap texture index. If <see cref="SplatmapIndex"/> is 0, this will be 1.
-            /// If <see cref="SplatmapIndex"/> is 1, this will be 0.
+            /// The splatmap texture index. If <see cref="SplatmapIndex"/> is 0, this will be 1. If <see cref="SplatmapIndex"/> is 1, this will be 0.
             /// </summary>
             public int SplatmapIndexOther;
 
@@ -220,8 +219,7 @@ namespace FlaxEditor.Tools.Terrain.Paint
             public Color32* TempBuffer;
             
             /// <summary>
-            /// The 'other" temporary data buffer (for modified data). If <see cref="TempBuffer"/> refers
-            /// to the splatmap with index 0, this one will refer to the one with index 1.
+            /// The 'other' temporary data buffer (for modified data). If <see cref="TempBuffer"/> refersto the splatmap with index 0, this one will refer to the one with index 1.
             /// </summary>
             public Color32* TempBufferOther;
 
diff --git a/Source/Editor/Tools/Terrain/Paint/SingleLayerMode.cs b/Source/Editor/Tools/Terrain/Paint/SingleLayerMode.cs
index d0c76a830..5921f7d10 100644
--- a/Source/Editor/Tools/Terrain/Paint/SingleLayerMode.cs
+++ b/Source/Editor/Tools/Terrain/Paint/SingleLayerMode.cs
@@ -76,6 +76,7 @@ namespace FlaxEditor.Tools.Terrain.Paint
 
             // Apply brush modification
             Profiler.BeginEvent("Apply Brush");
+            bool otherModified = false;
             for (int z = 0; z < p.ModifiedSize.Y; z++)
             {
                 var zz = z + p.ModifiedOffset.Y;
@@ -86,34 +87,38 @@ namespace FlaxEditor.Tools.Terrain.Paint
 
                     var samplePositionLocal = p.PatchPositionLocal + new Vector3(xx * FlaxEngine.Terrain.UnitsPerVertex, 0, zz * FlaxEngine.Terrain.UnitsPerVertex);
                     Vector3.Transform(ref samplePositionLocal, ref p.TerrainWorld, out Vector3 samplePositionWorld);
+                    var sample = Mathf.Saturate(p.Brush.Sample(ref brushPosition, ref samplePositionWorld));
+
+                    var paintAmount = sample * strength;
+                    if (paintAmount < 0.0f)
+                        continue; // Skip when pixel won't be affected
 
-                    var sample = Mathf.Clamp(p.Brush.Sample(ref brushPosition, ref samplePositionWorld), 0f, 1f);
-                    var paintAmount = sample * strength * (1f - src[c]);
-                    
                     // Paint on the active splatmap texture
-                    src[c] = Mathf.Clamp(src[c] + paintAmount, 0, 1f);
-                    src[(c + 1) % 4] = Mathf.Clamp(src[(c + 1) % 4] - paintAmount, 0, 1f);
-                    src[(c + 2) % 4] = Mathf.Clamp(src[(c + 2) % 4] - paintAmount, 0, 1f);
-                    src[(c + 3) % 4] = Mathf.Clamp(src[(c + 3) % 4] - paintAmount, 0, 1f);
-
+                    src[c] = Mathf.Saturate(src[c] + paintAmount);
+                    src[(c + 1) % 4] = Mathf.Saturate(src[(c + 1) % 4] - paintAmount);
+                    src[(c + 2) % 4] = Mathf.Saturate(src[(c + 2) % 4] - paintAmount);
+                    src[(c + 3) % 4] = Mathf.Saturate(src[(c + 3) % 4] - paintAmount);
                     p.TempBuffer[z * p.ModifiedSize.X + x] = src;
 
-                    // Remove 'paint' from the other splatmap texture
                     var other = (Color)p.SourceDataOther[zz * p.HeightmapSize + xx];
-
-                    other[c] = Mathf.Clamp(other[c] - paintAmount, 0, 1f);
-                    other[(c + 1) % 4] = Mathf.Clamp(other[(c + 1) % 4] - paintAmount, 0, 1f);
-                    other[(c + 2) % 4] = Mathf.Clamp(other[(c + 2) % 4] - paintAmount, 0, 1f);
-                    other[(c + 3) % 4] = Mathf.Clamp(other[(c + 3) % 4] - paintAmount, 0, 1f);
-
-                    p.TempBufferOther[z * p.ModifiedSize.X + x] = other;
+                    //if (other.ValuesSum > 0.0f) // Skip editing the other splatmap if it's empty
+                    {
+                        // Remove 'paint' from the other splatmap texture
+                        other[c] = Mathf.Saturate(other[c] - paintAmount);
+                        other[(c + 1) % 4] = Mathf.Saturate(other[(c + 1) % 4] - paintAmount);
+                        other[(c + 2) % 4] = Mathf.Saturate(other[(c + 2) % 4] - paintAmount);
+                        other[(c + 3) % 4] = Mathf.Saturate(other[(c + 3) % 4] - paintAmount);
+                        p.TempBufferOther[z * p.ModifiedSize.X + x] = other;
+                        otherModified = true;
+                    }
                 }
             }
             Profiler.EndEvent();
 
             // Update terrain patch
             TerrainTools.ModifySplatMap(p.Terrain, ref p.PatchCoord, p.SplatmapIndex, p.TempBuffer, ref p.ModifiedOffset, ref p.ModifiedSize);
-            TerrainTools.ModifySplatMap(p.Terrain, ref p.PatchCoord, p.SplatmapIndexOther, p.TempBufferOther, ref p.ModifiedOffset, ref p.ModifiedSize);
+            if (otherModified)
+                TerrainTools.ModifySplatMap(p.Terrain, ref p.PatchCoord, p.SplatmapIndexOther, p.TempBufferOther, ref p.ModifiedOffset, ref p.ModifiedSize);
         }
     }
 }
diff --git a/Source/Engine/Core/Math/Color.cs b/Source/Engine/Core/Math/Color.cs
index d585177a0..7474b913d 100644
--- a/Source/Engine/Core/Math/Color.cs
+++ b/Source/Engine/Core/Math/Color.cs
@@ -92,6 +92,21 @@ namespace FlaxEngine
         /// </summary>
         public float MaxColorComponent => Mathf.Max(Mathf.Max(R, G), B);
 
+        /// <summary>
+        /// Gets a minimum component value (max of r,g,b,a).
+        /// </summary>
+        public float MinValue => Math.Min(R, Math.Min(G, Math.Min(B, A)));
+
+        /// <summary>
+        /// Gets a maximum component value (min of r,g,b,a).
+        /// </summary>
+        public float MaxValue => Math.Max(R, Math.Max(G, Math.Max(B, A)));
+
+        /// <summary>
+        /// Gets a sum of the component values.
+        /// </summary>
+        public float ValuesSum => R + G + B + A;
+
         /// <summary>
         /// Constructs a new Color with given r,g,b,a component.
         /// </summary>