diff --git a/.gitignore b/.gitignore
index 5405a74e9..fe3686d57 100644
--- a/.gitignore
+++ b/.gitignore
@@ -121,8 +121,5 @@ compile_commands.json
 *.sln
 .vs/
 
-# Optional user provided library folder
-lib/irrlichtmt
-
 # Generated mod storage database
 client/mod_storage.sqlite
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..932b64bf3
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/irrlichtmt"]
+	path = lib/irrlichtmt
+	url = git@brn.systems:BRNSystems/irrlicht.git
diff --git a/builtin/settingtypes.txt b/builtin/settingtypes.txt
index af821b5be..093d4a544 100644
--- a/builtin/settingtypes.txt
+++ b/builtin/settingtypes.txt
@@ -256,6 +256,10 @@ connected_glass (Connect glass) bool false
 #    Disable for speed or for different looks.
 smooth_lighting (Smooth lighting) bool true
 
+#    Enable full brightness for great visibility in the dark
+#    Disable if you think this is cheating
+full_brightness (Full brightness) bool false
+
 #    Enables tradeoffs that reduce CPU load or increase rendering performance
 #    at the expense of minor visual glitches that do not impact game playability.
 performance_tradeoffs (Tradeoffs for performance) bool false
diff --git a/cmake/Modules/GenerateVersion.cmake b/cmake/Modules/GenerateVersion.cmake
index ad0e38263..c61a2ea09 100644
--- a/cmake/Modules/GenerateVersion.cmake
+++ b/cmake/Modules/GenerateVersion.cmake
@@ -7,12 +7,6 @@ if(DEVELOPMENT_BUILD)
 		ERROR_QUIET)
 	if(VERSION_GITHASH)
 		set(VERSION_GITHASH "${VERSION_STRING}-${VERSION_GITHASH}")
-		execute_process(COMMAND git diff-index --quiet HEAD
-			WORKING_DIRECTORY "${GENERATE_VERSION_SOURCE_DIR}"
-			RESULT_VARIABLE IS_DIRTY)
-		if(IS_DIRTY)
-			set(VERSION_GITHASH "${VERSION_GITHASH}-dirty")
-		endif()
 		message(STATUS "*** Detected Git version ${VERSION_GITHASH} ***")
 	endif()
 endif()
diff --git a/lib/irrlichtmt b/lib/irrlichtmt
new file mode 160000
index 000000000..85081d6fe
--- /dev/null
+++ b/lib/irrlichtmt
@@ -0,0 +1 @@
+Subproject commit 85081d6fe0c422cf47f74714ee25562715528aa2
diff --git a/minetest.conf.example b/minetest.conf.example
index 72b3d2046..eec37b7ac 100644
--- a/minetest.conf.example
+++ b/minetest.conf.example
@@ -187,6 +187,11 @@
 #    type: bool
 # smooth_lighting = true
 
+#    Enable full brightness for great visibility in the dark
+#    Disable if you think this is cheating
+#    type: bool
+full_brightness (Full brightness) bool false
+
 #    Enables tradeoffs that reduce CPU load or increase rendering performance
 #    at the expense of minor visual glitches that do not impact game playability.
 #    type: bool
diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index bb1d8c78c..81e729629 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -198,6 +198,7 @@ void set_default_settings()
 	settings->setDefault("leaves_style", "fancy");
 	settings->setDefault("connected_glass", "false");
 	settings->setDefault("smooth_lighting", "true");
+	settings->setDefault("full_brightness", "false");
 	settings->setDefault("performance_tradeoffs", "false");
 	settings->setDefault("lighting_alpha", "0.0");
 	settings->setDefault("lighting_beta", "1.5");
diff --git a/src/light.cpp b/src/light.cpp
index d5389b450..82da00876 100644
--- a/src/light.cpp
+++ b/src/light.cpp
@@ -35,6 +35,7 @@ struct LightingParams {
 	float a, b, c; // Lighting curve polynomial coefficients
 	float boost, center, sigma; // Lighting curve parametric boost
 	float gamma; // Lighting curve gamma correction
+	bool full_brightness; //Full brightness
 };
 
 static LightingParams params;
@@ -42,6 +43,9 @@ static LightingParams params;
 
 float decode_light_f(float x)
 {
+	if (params.full_brightness){
+		return 1.0f;
+	}
 	if (x >= 1.0f) // x is often 1.0f
 		return 1.0f;
 	x = std::fmax(x, 0.0f);
@@ -62,6 +66,8 @@ void set_light_table(float gamma)
 // Lighting curve bounding gradients
 	const float alpha = rangelim(g_settings->getFloat("lighting_alpha"), 0.0f, 3.0f);
 	const float beta  = rangelim(g_settings->getFloat("lighting_beta"), 0.0f, 3.0f);
+	const bool full_brightness = g_settings->getBool("full_brightness");
+	params.full_brightness = full_brightness;
 // Lighting curve polynomial coefficients
 	params.a = alpha + beta - 2.0f;
 	params.b = 3.0f - 2.0f * alpha - beta;