diff --git a/src/g_level.cpp b/src/g_level.cpp
index 0367e7d917..a8e1677708 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -101,6 +101,7 @@ EXTERN_CVAR (Float, sv_gravity)
 EXTERN_CVAR (Float, sv_aircontrol)
 EXTERN_CVAR (Int, disableautosave)
 EXTERN_CVAR (String, playerclass)
+EXTERN_CVAR(Int, r_preservesectorcolor)
 
 #define SNAP_ID			MAKE_ID('s','n','A','p')
 #define DSNP_ID			MAKE_ID('d','s','N','p')
@@ -1488,6 +1489,20 @@ bool FLevelLocals::IsFreelookAllowed() const
 //
 //==========================================================================
 
+bool FLevelLocals::PreserveSectorColor() const
+{
+	if (r_preservesectorcolor == 0)
+		return false;
+	if (r_preservesectorcolor == 1)
+		return true;
+	return !!(level.flags3 & LEVEL3_PRESERVESECTORCOLOR);
+}
+
+//==========================================================================
+//
+//
+//==========================================================================
+
 FString CalcMapName (int episode, int level)
 {
 	FString lumpname;
diff --git a/src/g_level.h b/src/g_level.h
index 1fadcee3a7..270cf54f04 100644
--- a/src/g_level.h
+++ b/src/g_level.h
@@ -223,6 +223,7 @@ enum ELevelFlags : unsigned int
 	
 	// More flags!
 	LEVEL3_FORCEFAKECONTRAST	= 0x00000001,	// forces fake contrast even with fog enabled
+	LEVEL3_PRESERVESECTORCOLOR	= 0x00000002,
 };
 
 
diff --git a/src/g_levellocals.h b/src/g_levellocals.h
index 357e2e1545..0afac37adf 100644
--- a/src/g_levellocals.h
+++ b/src/g_levellocals.h
@@ -79,6 +79,7 @@ struct FLevelLocals
 	bool		IsJumpingAllowed() const;
 	bool		IsCrouchingAllowed() const;
 	bool		IsFreelookAllowed() const;
+	bool		PreserveSectorColor() const;
 };
 
 extern FLevelLocals level;
diff --git a/src/g_mapinfo.cpp b/src/g_mapinfo.cpp
index bb641b23bb..3f8e50027e 100644
--- a/src/g_mapinfo.cpp
+++ b/src/g_mapinfo.cpp
@@ -1282,6 +1282,8 @@ MapFlagHandlers[] =
 	{ "unfreezesingleplayerconversations",MITYPE_SETFLAG2,	LEVEL2_CONV_SINGLE_UNFREEZE, 0 },
 	{ "spawnwithweaponraised",			MITYPE_SETFLAG2,	LEVEL2_PRERAISEWEAPON, 0 },
 	{ "forcefakecontrast",				MITYPE_SETFLAG3,	LEVEL3_FORCEFAKECONTRAST, 0 },
+	{ "preservesectorcolor",			MITYPE_SETFLAG3,	LEVEL3_PRESERVESECTORCOLOR, 0 },
+	{ "nopreservesectorcolor",			MITYPE_CLRFLAG3,	LEVEL3_PRESERVESECTORCOLOR, 0 },
 	{ "nobotnodes",						MITYPE_IGNORE,	0, 0 },		// Skulltag option: nobotnodes
 	{ "compat_shorttex",				MITYPE_COMPATFLAG, COMPATF_SHORTTEX, 0 },
 	{ "compat_stairs",					MITYPE_COMPATFLAG, COMPATF_STAIRINDEX, 0 },
diff --git a/src/gl/renderer/gl_renderstate.cpp b/src/gl/renderer/gl_renderstate.cpp
index 429f69c349..04a53d67d6 100644
--- a/src/gl/renderer/gl_renderstate.cpp
+++ b/src/gl/renderer/gl_renderstate.cpp
@@ -141,9 +141,10 @@ bool FRenderState::ApplyShader()
 			fogset = -gl_fogmode;
 		}
 	}
+	glVertexAttrib4fv(VATTR_NORMAL, mNormal.vec);
 
 	glVertexAttrib4fv(VATTR_COLOR, mColor.vec);
-	glVertexAttrib4fv(VATTR_NORMAL, mNormal.vec);
+	activeShader->muObjectColor.Set(mObjectColor);
 
 	activeShader->muDesaturation.Set(mDesaturation / 255.f);
 	activeShader->muFogEnabled.Set(fogset);
@@ -152,7 +153,6 @@ bool FRenderState::ApplyShader()
 	activeShader->muCameraPos.Set(mCameraPos.vec);
 	activeShader->muLightParms.Set(mLightParms);
 	activeShader->muFogColor.Set(mFogColor);
-	activeShader->muObjectColor.Set(mObjectColor);
 	activeShader->muDynLightColor.Set(mDynColor.vec);
 	activeShader->muInterpolationFactor.Set(mInterpolationFactor);
 	activeShader->muClipHeight.Set(mClipHeight);
diff --git a/src/r_utility.cpp b/src/r_utility.cpp
index c7f09c204a..612e292baf 100644
--- a/src/r_utility.cpp
+++ b/src/r_utility.cpp
@@ -91,6 +91,11 @@ static TArray<DVector3a> InterpolationPath;
 
 // PUBLIC DATA DEFINITIONS -------------------------------------------------
 
+CUSTOM_CVAR(Int, r_preservesectorcolor, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
+{
+	if (self < -1 || self > 1) self = -1;
+}
+
 CVAR (Bool, r_deathcamera, false, CVAR_ARCHIVE)
 CVAR (Int, r_clearbuffer, 0, 0)
 CVAR (Bool, r_drawvoxels, true, 0)
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index de9bc1adca..2482cfba50 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -1792,7 +1792,7 @@ DSPLYMNU_PALLETEHACK			= "DirectDraw palette hack"; // Not used
 DSPLYMNU_ATTACHEDSURFACES		= "Use attached surfaces"; // Not used
 DSPLYMNU_SKYMODE				= "Sky render mode";
 DSPLYMNU_LINEARSKY				= "Linear skies";
-DSPLYMNU_GZDFULLBRIGHT			= "Fullbright overrides sector color";
+DSPLYMNU_GZDFULLBRIGHT			= "Fullbright preserves sector color";
 DSPLYMNU_DRAWFUZZ				= "Use fuzz effect";
 DSPLYMNU_TRANSSOUL				= "Lost Soul translucency";
 DSPLYMNU_FAKECONTRAST			= "Use fake contrast";
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index f88b34286d..a8a2b10e8c 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -664,6 +664,13 @@ OptionValue Fuzziness
 	2.0, "$OPTVAL_SHADOW"
 }
 
+OptionValue SectorColor
+{
+	-1.0, "$OPTVAL_MAPSETTING"
+	 0.0, "$OPTVAL_OFF"
+	 1.0, "$OPTVAL_ON"
+}
+
 OptionMenu "OpenGLOptions"
 {
 	Title "$GLMNU_TITLE"
@@ -717,7 +724,7 @@ OptionMenu "VideoOptions"
 	
 	Option "$DSPLYMNU_SKYMODE",					"r_skymode", "SkyModes"
 	Option "$DSPLYMNU_LINEARSKY",				"r_linearsky", "OnOff"
-	Option "$DSPLYMNU_GZDFULLBRIGHT",			"r_fullbrightignoresectorcolor", "OnOff"
+	Option "$DSPLYMNU_GZDFULLBRIGHT",			"r_preservesectorcolor", "SectorColor"
 	Option "$DSPLYMNU_DRAWFUZZ",				"r_drawfuzz", "Fuzziness"
 	Slider "$DSPLYMNU_TRANSSOUL",				"transsouls", 0.25, 1.0, 0.05, 2
 	Option "$DSPLYMNU_FAKECONTRAST",			"r_fakecontrast", "Contrast"