diff --git a/Source/Editor/Windows/Assets/MaterialWindow.cs b/Source/Editor/Windows/Assets/MaterialWindow.cs
index 934cd6594..b051542a1 100644
--- a/Source/Editor/Windows/Assets/MaterialWindow.cs
+++ b/Source/Editor/Windows/Assets/MaterialWindow.cs
@@ -57,7 +57,7 @@ namespace FlaxEditor.Windows.Assets
             [EditorOrder(20), VisibleIf(nameof(IsStandard)), EditorDisplay("General"), Tooltip("Defines how material inputs and properties are combined to result the final surface color.")]
             public MaterialShadingModel ShadingModel;
 
-            [EditorOrder(30), VisibleIf(nameof(IsStandard)), EditorDisplay("General"), Tooltip("Determinates how materials' color should be blended with the background colors.")]
+            [EditorOrder(30), VisibleIf(nameof(ShowBlendMode)), EditorDisplay("General"), Tooltip("Determinates how materials' color should be blended with the background colors.")]
             public MaterialBlendMode BlendMode;
 
             // Rendering
@@ -145,6 +145,7 @@ namespace FlaxEditor.Windows.Assets
 
             // Visibility conditionals
 
+            private bool ShowBlendMode => Domain != MaterialDomain.Terrain;
             private bool IsPostProcess => Domain == MaterialDomain.PostProcess;
             private bool IsDecal => Domain == MaterialDomain.Decal;
             private bool IsGUI => Domain == MaterialDomain.GUI;
@@ -187,6 +188,14 @@ namespace FlaxEditor.Windows.Assets
 
                 // Link
                 Window = window;
+
+                // [Deprecated in 1.12]
+                // Fix old terrain materials to go back into opaque
+                if (Domain == MaterialDomain.Terrain && BlendMode != MaterialBlendMode.Opaque)
+                {
+                    BlendMode = MaterialBlendMode.Opaque;
+                    FlaxEngine.Scripting.InvokeOnUpdate(Window.MarkAsEdited);
+                }
             }
 
             /// <summary>
diff --git a/Source/Engine/Graphics/Materials/MaterialShaderFeatures.h b/Source/Engine/Graphics/Materials/MaterialShaderFeatures.h
index f03266f19..6cfb28e88 100644
--- a/Source/Engine/Graphics/Materials/MaterialShaderFeatures.h
+++ b/Source/Engine/Graphics/Materials/MaterialShaderFeatures.h
@@ -3,7 +3,6 @@
 #pragma once
 
 #include "MaterialShader.h"
-#include "Engine/Core/Math/Rectangle.h"
 #include "Engine/Core/Types/Span.h"
 #include "Engine/Renderer/GI/DynamicDiffuseGlobalIllumination.h"
 #include "Engine/Renderer/GlobalSignDistanceFieldPass.h"
diff --git a/Source/Engine/Graphics/Materials/TerrainMaterialShader.cpp b/Source/Engine/Graphics/Materials/TerrainMaterialShader.cpp
index bb0796234..4db4acda1 100644
--- a/Source/Engine/Graphics/Materials/TerrainMaterialShader.cpp
+++ b/Source/Engine/Graphics/Materials/TerrainMaterialShader.cpp
@@ -150,21 +150,6 @@ bool TerrainMaterialShader::Load()
     }
 #endif
 
-    // Support blending but then use only emissive channel
-    switch (_info.BlendMode)
-    {
-    case MaterialBlendMode::Transparent:
-        psDesc.BlendMode = BlendingMode::AlphaBlend;
-        break;
-    case MaterialBlendMode::Additive:
-        psDesc.BlendMode = BlendingMode::Additive;
-        break;
-    case MaterialBlendMode::Multiply:
-        psDesc.BlendMode = BlendingMode::Multiply;
-        break;
-    default: ;
-    }
-
     // GBuffer Pass
     psDesc.VS = _shader->GetVS("VS");
     psDesc.PS = _shader->GetPS("PS_GBuffer");
@@ -185,7 +170,6 @@ bool TerrainMaterialShader::Load()
 
     // Depth Pass
     psDesc.CullMode = CullMode::TwoSided;
-    psDesc.BlendMode = BlendingMode::Opaque;
     psDesc.DepthClipEnable = false;
     psDesc.DepthWriteEnable = true;
     psDesc.DepthEnable = true;