diff --git a/components/sceneutil/shadow.cpp b/components/sceneutil/shadow.cpp
index 363e0ac3fd..374faee8ce 100644
--- a/components/sceneutil/shadow.cpp
+++ b/components/sceneutil/shadow.cpp
@@ -96,6 +96,11 @@ namespace SceneUtil
         // remove extra comma
         definesWithShadows["shadow_texture_unit_list"] = definesWithShadows["shadow_texture_unit_list"].substr(0, definesWithShadows["shadow_texture_unit_list"].length() - 1);
 
+        if (Settings::Manager::getBool("allow shadow map overlap", "Shadows"))
+            definesWithShadows["shadowMapsOverlap"] = "1";
+        else
+            definesWithShadows["shadowMapsOverlap"] = "0";
+
         return definesWithShadows;
     }
 
@@ -105,6 +110,8 @@ namespace SceneUtil
         definesWithShadows.insert(std::make_pair(std::string("shadows_enabled"), std::string("0")));
         definesWithShadows["shadow_texture_unit_list"] = "";
 
+        definesWithShadows["shadowMapsOverlap"] = "0";
+
         return definesWithShadows;
     }
     void ShadowManager::enableIndoorMode()
diff --git a/files/shaders/objects_fragment.glsl b/files/shaders/objects_fragment.glsl
index 7ba3d1de0d..5eb98899ad 100644
--- a/files/shaders/objects_fragment.glsl
+++ b/files/shaders/objects_fragment.glsl
@@ -124,20 +124,26 @@ void main()
 
 	float shadowing = 1.0;
 #if SHADOWS
-	bool doneShadows = false;
-	@foreach shadow_texture_unit_index @shadow_texture_unit_list
-		if (!doneShadows)
-		{
-			vec2 shadowXY = shadowSpaceCoords@shadow_texture_unit_index.xy / shadowSpaceCoords@shadow_texture_unit_index.w;
-			if (all(lessThan(shadowXY, vec2(1.0, 1.0))) && all(greaterThan(shadowXY, vec2(0.0, 0.0))))
+	#if @shadowMapsOverlap
+		bool doneShadows = false;
+		@foreach shadow_texture_unit_index @shadow_texture_unit_list
+			if (!doneShadows)
 			{
-				shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
-
-				if (all(lessThan(shadowXY, vec2(0.95, 0.95))) && all(greaterThan(shadowXY, vec2(0.05, 0.05))))
-					doneShadows = true;
+				vec2 shadowXY = shadowSpaceCoords@shadow_texture_unit_index.xy / shadowSpaceCoords@shadow_texture_unit_index.w;
+				if (all(lessThan(shadowXY, vec2(1.0, 1.0))) && all(greaterThan(shadowXY, vec2(0.0, 0.0))))
+				{
+					shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
+
+					if (all(lessThan(shadowXY, vec2(0.95, 0.95))) && all(greaterThan(shadowXY, vec2(0.05, 0.05))))
+						doneShadows = true;
+				}
 			}
-		}
-	@endforeach
+		@endforeach
+	#else
+		@foreach shadow_texture_unit_index @shadow_texture_unit_list
+			shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
+		@endforeach
+	#endif
 #endif // SHADOWS
 
 #if !PER_PIXEL_LIGHTING
diff --git a/files/shaders/terrain_fragment.glsl b/files/shaders/terrain_fragment.glsl
index 68ab1bbdd0..ae9f5a7bab 100644
--- a/files/shaders/terrain_fragment.glsl
+++ b/files/shaders/terrain_fragment.glsl
@@ -76,20 +76,26 @@ void main()
 
 	float shadowing = 1.0;
 #if SHADOWS
-	bool doneShadows = false;
-	@foreach shadow_texture_unit_index @shadow_texture_unit_list
-		if (!doneShadows)
-		{
-			vec2 shadowXY = shadowSpaceCoords@shadow_texture_unit_index.xy / shadowSpaceCoords@shadow_texture_unit_index.w;
-			if (all(lessThan(shadowXY, vec2(1.0, 1.0))) && all(greaterThan(shadowXY, vec2(0.0, 0.0))))
+	#if @shadowMapsOverlap
+		bool doneShadows = false;
+		@foreach shadow_texture_unit_index @shadow_texture_unit_list
+			if (!doneShadows)
 			{
-				shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
-
-				if (all(lessThan(shadowXY, vec2(0.95, 0.95))) && all(greaterThan(shadowXY, vec2(0.05, 0.05))))
-					doneShadows = true;
+				vec2 shadowXY = shadowSpaceCoords@shadow_texture_unit_index.xy / shadowSpaceCoords@shadow_texture_unit_index.w;
+				if (all(lessThan(shadowXY, vec2(1.0, 1.0))) && all(greaterThan(shadowXY, vec2(0.0, 0.0))))
+				{
+					shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
+
+					if (all(lessThan(shadowXY, vec2(0.95, 0.95))) && all(greaterThan(shadowXY, vec2(0.05, 0.05))))
+						doneShadows = true;
+				}
 			}
-		}
-	@endforeach
+		@endforeach
+	#else
+		@foreach shadow_texture_unit_index @shadow_texture_unit_list
+			shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
+		@endforeach
+	#endif
 #endif // SHADOWS
 
 #if !PER_PIXEL_LIGHTING
diff --git a/files/shaders/water_fragment.glsl b/files/shaders/water_fragment.glsl
index e953b2611e..7aa7ca0b0d 100644
--- a/files/shaders/water_fragment.glsl
+++ b/files/shaders/water_fragment.glsl
@@ -168,20 +168,26 @@ void main(void)
 
 #if SHADOWS
 	float shadowing = 1.0;
-	bool doneShadows = false;
-	@foreach shadow_texture_unit_index @shadow_texture_unit_list
-		if (!doneShadows)
-		{
-			vec2 shadowXY = shadowSpaceCoords@shadow_texture_unit_index.xy / shadowSpaceCoords@shadow_texture_unit_index.w;
-			if (all(lessThan(shadowXY, vec2(1.0, 1.0))) && all(greaterThan(shadowXY, vec2(0.0, 0.0))))
+	#if @shadowMapsOverlap
+		bool doneShadows = false;
+		@foreach shadow_texture_unit_index @shadow_texture_unit_list
+			if (!doneShadows)
 			{
-				shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
-
-				if (all(lessThan(shadowXY, vec2(0.95, 0.95))) && all(greaterThan(shadowXY, vec2(0.05, 0.05))))
-					doneShadows = true;
+				vec2 shadowXY = shadowSpaceCoords@shadow_texture_unit_index.xy / shadowSpaceCoords@shadow_texture_unit_index.w;
+				if (all(lessThan(shadowXY, vec2(1.0, 1.0))) && all(greaterThan(shadowXY, vec2(0.0, 0.0))))
+				{
+					shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
+
+					if (all(lessThan(shadowXY, vec2(0.95, 0.95))) && all(greaterThan(shadowXY, vec2(0.05, 0.05))))
+						doneShadows = true;
+				}
 			}
-		}
-	@endforeach
+		@endforeach
+	#else
+		@foreach shadow_texture_unit_index @shadow_texture_unit_list
+			shadowing *= shadow2DProj(shadowTexture@shadow_texture_unit_index, shadowSpaceCoords@shadow_texture_unit_index).r;
+		@endforeach
+	#endif
 
 	float shadow = shadowing;
 #else // NOT SHADOWS