diff --git a/src/fragglescript/t_cmd.cpp b/src/fragglescript/t_cmd.cpp
index 5101d00347..db3fcd0338 100644
--- a/src/fragglescript/t_cmd.cpp
+++ b/src/fragglescript/t_cmd.cpp
@@ -187,7 +187,10 @@ void FS_EmulateCmd(char * string)
 		{
 			sc.MustGetNumber();
 			// Using this disables most MAPINFO fog options!
-			Renderer->SetFogParams(sc.Number*70/400, 0xff000000, 0, 0);
+			level.fogdensity = sc.Number * 70 / 400;
+			level.outsidefogdensity = 0;
+			level.skyfog = 0;
+			level.info->outsidefog = 0;
 		}
 		else if (sc.Compare("gr_fogcolor"))
 		{
diff --git a/src/g_level.cpp b/src/g_level.cpp
index f8c92a2710..dce05bc994 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -1466,6 +1466,11 @@ void G_InitLevelLocals ()
 	level.F1Pic = info->F1Pic;
 	level.hazardcolor = info->hazardcolor;
 	level.hazardflash = info->hazardflash;
+	
+	// GL fog stuff modifiable by SetGlobalFogParameter.
+	level.fogdensity = info->fogdensity;
+	level.outsidefogdensity = info->outsidefogdensity;
+	level.skyfog = info->skyfog;
 
 	compatflags.Callback();
 	compatflags2.Callback();
@@ -1935,6 +1940,9 @@ DEFINE_FIELD(FLevelLocals, aircontrol)
 DEFINE_FIELD(FLevelLocals, airfriction)
 DEFINE_FIELD(FLevelLocals, airsupply)
 DEFINE_FIELD(FLevelLocals, teamdamage)
+DEFINE_FIELD(FLevelLocals, fogdensity)
+DEFINE_FIELD(FLevelLocals, outsidefogdensity)
+DEFINE_FIELD(FLevelLocals, skyfog)
 DEFINE_FIELD_BIT(FLevelLocals, flags, monsterstelefrag, LEVEL_MONSTERSTELEFRAG)
 DEFINE_FIELD_BIT(FLevelLocals, flags, actownspecial, LEVEL_ACTOWNSPECIAL)
 DEFINE_FIELD_BIT(FLevelLocals, flags, sndseqtotalctrl, LEVEL_SNDSEQTOTALCTRL)
@@ -1970,6 +1978,16 @@ CCMD(listmaps)
 	}
 }
 
-
-
+//==========================================================================
+//
+// For testing sky fog sheets
+//
+//==========================================================================
+CCMD(skyfog)
+{
+	if (argv.argc()>1)
+	{
+		level.skyfog = MAX(0, (int)strtoull(argv[1], NULL, 0));
+	}
+}
 
diff --git a/src/g_level.h b/src/g_level.h
index 59f396bd8d..306ed3fa8c 100644
--- a/src/g_level.h
+++ b/src/g_level.h
@@ -332,6 +332,9 @@ struct level_info_t
 	FName		slideshow;
 	uint32_t		hazardcolor;
 	uint32_t		hazardflash;
+	int			fogdensity;
+	int			outsidefogdensity;
+	int			skyfog;
 
 	// Redirection: If any player is carrying the specified item, then
 	// you go to the RedirectMap instead of this one.
diff --git a/src/g_levellocals.h b/src/g_levellocals.h
index 98ccdc3e88..7f7be16fcf 100644
--- a/src/g_levellocals.h
+++ b/src/g_levellocals.h
@@ -81,6 +81,12 @@ struct FLevelLocals
 
 	double		teamdamage;
 
+	// former OpenGL-exclusive properties that should also be usable by the true color software renderer.
+	int fogdensity;
+	int outsidefogdensity;
+	int skyfog;
+
+
 	bool		IsJumpingAllowed() const;
 	bool		IsCrouchingAllowed() const;
 	bool		IsFreelookAllowed() const;
diff --git a/src/g_mapinfo.cpp b/src/g_mapinfo.cpp
index 0bead4ed80..44edf83e8a 100644
--- a/src/g_mapinfo.cpp
+++ b/src/g_mapinfo.cpp
@@ -1216,6 +1216,28 @@ DEFINE_MAP_OPTION(hazardflash, true)
 	info->hazardflash = V_GetColor(NULL, parse.sc);
 }
 
+DEFINE_MAP_OPTION(fogdensity, false)
+{
+	parse.ParseAssign();
+	parse.sc.MustGetNumber();
+	info->fogdensity = clamp(parse.sc.Number, 0, 512) >> 1;
+}
+
+DEFINE_MAP_OPTION(outsidefogdensity, false)
+{
+	parse.ParseAssign();
+	parse.sc.MustGetNumber();
+	info->outsidefogdensity = clamp(parse.sc.Number, 0, 512) >> 1;
+}
+
+DEFINE_MAP_OPTION(skyfog, false)
+{
+	parse.ParseAssign();
+	parse.sc.MustGetNumber();
+	info->skyfog = parse.sc.Number;
+}
+
+
 //==========================================================================
 //
 // All flag based map options 
diff --git a/src/gl/compatibility/gl_20.cpp b/src/gl/compatibility/gl_20.cpp
index b736beeae6..78c2ac8336 100644
--- a/src/gl/compatibility/gl_20.cpp
+++ b/src/gl/compatibility/gl_20.cpp
@@ -39,6 +39,7 @@
 #include "r_utility.h"
 #include "g_levellocals.h"
 #include "actorinlines.h"
+#include "g_levellocals.h"
 #include "gl/dynlights/gl_dynlight.h"
 #include "gl/utility/gl_geometric.h"
 #include "gl/renderer/gl_renderer.h"
@@ -464,6 +465,39 @@ bool gl_SetupLightTexture()
 	return true;
 }
 
+//==========================================================================
+//
+// Check fog in current sector for placing into the proper draw list.
+//
+//==========================================================================
+
+static bool gl_CheckFog(FColormap *cm, int lightlevel)
+{
+	bool frontfog;
+
+	PalEntry fogcolor = cm->FadeColor;
+
+	if ((fogcolor.d & 0xffffff) == 0)
+	{
+		frontfog = false;
+	}
+	else if (level.outsidefogdensity != 0 && APART(level.info->outsidefog) != 0xff && (fogcolor.d & 0xffffff) == (level.info->outsidefog & 0xffffff))
+	{
+		frontfog = true;
+	}
+	else  if (level.fogdensity != 0 || (glset.lightmode & 4) || cm->fogdensity > 0)
+	{
+		// case 3: level has fog density set
+		frontfog = true;
+	}
+	else
+	{
+		// case 4: use light level
+		frontfog = lightlevel < 248;
+	}
+	return frontfog;
+}
+
 //==========================================================================
 //
 //
diff --git a/src/gl/data/gl_data.cpp b/src/gl/data/gl_data.cpp
index 99ea87b647..45832fc6cd 100644
--- a/src/gl/data/gl_data.cpp
+++ b/src/gl/data/gl_data.cpp
@@ -172,50 +172,6 @@ void AdjustSpriteOffsets()
 
 
 
-// Normally this would be better placed in p_lnspec.cpp.
-// But I have accidentally overwritten that file several times
-// so I'd rather place it here.
-int LS_Sector_SetPlaneReflection (line_t *ln, AActor *it, bool backSide,
-	int arg0, int arg1, int arg2, int arg3, int arg4)
-{
-// Sector_SetPlaneReflection (tag, floor, ceiling)
-	int secnum;
-	FSectorTagIterator itr(arg0);
-
-	while ((secnum = itr.Next()) >= 0)
-	{
-		sector_t * s = &level.sectors[secnum];
-		if (!s->floorplane.isSlope()) s->reflect[sector_t::floor] = arg1/255.f;
-		if (!s->ceilingplane.isSlope()) level.sectors[secnum].reflect[sector_t::ceiling] = arg2/255.f;
-	}
-
-	return true;
-}
-
-int LS_SetGlobalFogParameter (line_t *ln, AActor *it, bool backSide,
-	int arg0, int arg1, int arg2, int arg3, int arg4)
-{
-// SetGlobalFogParameter (type, value)
-	switch(arg0)
-	{
-	case 0:
-		fogdensity = arg1>>1;
-		return true;
-
-	case 1:
-		outsidefogdensity = arg1>>1;
-		return true;
-
-	case 2:
-		skyfog = arg1;
-		return true;
-
-	default:
-		return false;
-	}
-}
-
-
 //==========================================================================
 //
 // Portal identifier lists
@@ -234,9 +190,6 @@ struct FGLROptions : public FOptionalMapinfoData
 	FGLROptions()
 	{
 		identifier = "gl_renderer";
-		fogdensity = 0;
-		outsidefogdensity = 0;
-		skyfog = 0;
 		brightfog = false;
 		lightmode = -1;
 		nocoloredspritelighting = -1;
@@ -251,9 +204,6 @@ struct FGLROptions : public FOptionalMapinfoData
 	{
 		FGLROptions *newopt = new FGLROptions;
 		newopt->identifier = identifier;
-		newopt->fogdensity = fogdensity;
-		newopt->outsidefogdensity = outsidefogdensity;
-		newopt->skyfog = skyfog;
 		newopt->lightmode = lightmode;
 		newopt->nocoloredspritelighting = nocoloredspritelighting;
 		newopt->nolightfade = nolightfade;
@@ -264,9 +214,6 @@ struct FGLROptions : public FOptionalMapinfoData
 		newopt->lightadditivesurfaces = lightadditivesurfaces;
 		return newopt;
 	}
-	int			fogdensity;
-	int			outsidefogdensity;
-	int			skyfog;
 	int			lightmode;
 	int			brightfog;
 	int8_t		lightadditivesurfaces;
@@ -278,14 +225,6 @@ struct FGLROptions : public FOptionalMapinfoData
 	float		pixelstretch;
 };
 
-DEFINE_MAP_OPTION(fogdensity, false)
-{
-	FGLROptions *opt = info->GetOptData<FGLROptions>("gl_renderer");
-	parse.ParseAssign();
-	parse.sc.MustGetNumber();
-	opt->fogdensity = parse.sc.Number;
-}
-
 DEFINE_MAP_OPTION(brightfog, false)
 {
 	FGLROptions *opt = info->GetOptData<FGLROptions>("gl_renderer");
@@ -294,22 +233,6 @@ DEFINE_MAP_OPTION(brightfog, false)
 	opt->brightfog = parse.sc.Number;
 }
 
-DEFINE_MAP_OPTION(outsidefogdensity, false)
-{
-	FGLROptions *opt = info->GetOptData<FGLROptions>("gl_renderer");
-	parse.ParseAssign();
-	parse.sc.MustGetNumber();
-	opt->outsidefogdensity = parse.sc.Number;
-}
-
-DEFINE_MAP_OPTION(skyfog, false)
-{
-	FGLROptions *opt = info->GetOptData<FGLROptions>("gl_renderer");
-	parse.ParseAssign();
-	parse.sc.MustGetNumber();
-	opt->skyfog = parse.sc.Number;
-}
-
 DEFINE_MAP_OPTION(lightmode, false)
 {
 	FGLROptions *opt = info->GetOptData<FGLROptions>("gl_renderer");
@@ -440,7 +363,6 @@ void InitGLRMapinfoData()
 
 	if (opt != NULL)
 	{
-		gl_SetFogParams(clamp(opt->fogdensity, 0, 255), level.info->outsidefog, clamp(opt->outsidefogdensity, 0, 255), opt->skyfog);
 		glset.map_lightmode = opt->lightmode;
 		glset.map_lightadditivesurfaces = opt->lightadditivesurfaces;
 		glset.map_brightfog = opt->brightfog;
@@ -453,7 +375,6 @@ void InitGLRMapinfoData()
 	}
 	else
 	{
-		gl_SetFogParams(0, level.info->outsidefog, 0, 0);
 		glset.map_lightmode = -1;
 		glset.map_lightadditivesurfaces = -1;
 		glset.map_brightfog = -1;
diff --git a/src/gl/dynlights/gl_glow.cpp b/src/gl/dynlights/gl_glow.cpp
index 2e324b63e0..db988ea52d 100644
--- a/src/gl/dynlights/gl_glow.cpp
+++ b/src/gl/dynlights/gl_glow.cpp
@@ -206,12 +206,3 @@ bool gl_GetWallGlow(sector_t *sector, float *topglowcolor, float *bottomglowcolo
 	return ret;
 }
 
-#include "c_dispatch.h"
-#include "d_player.h"
-
-CCMD(setglow)
-{
-	auto s = players[0].mo->Sector;
-	s->planes[sector_t::floor].GlowHeight = 128;
-	s->planes[sector_t::floor].GlowColor = 0xff0000;
-}
diff --git a/src/gl/renderer/gl_lightdata.cpp b/src/gl/renderer/gl_lightdata.cpp
index 63311a3dfc..53df11aa1c 100644
--- a/src/gl/renderer/gl_lightdata.cpp
+++ b/src/gl/renderer/gl_lightdata.cpp
@@ -42,10 +42,6 @@
 
 // externally settable lighting properties
 static float distfogtable[2][256];	// light to fog conversion table for black fog
-static PalEntry outsidefogcolor;
-int fogdensity;
-int outsidefogdensity;
-int skyfog;
 
 CVAR(Int, gl_weaponlight, 8, CVAR_ARCHIVE);
 CUSTOM_CVAR(Bool, gl_enhanced_nightvision, true, CVAR_ARCHIVE|CVAR_NOINITCALL)
@@ -165,23 +161,6 @@ void gl_GetRenderStyle(FRenderStyle style, bool drawopaque, bool allowcolorblend
 }
 
 
-//==========================================================================
-//
-// Set fog parameters for the level
-//
-//==========================================================================
-void gl_SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog)
-{
-	fogdensity=_fogdensity;
-	outsidefogcolor=_outsidefogcolor;
-	outsidefogdensity=_outsidefogdensity;
-	skyfog=_skyfog;
-
-	outsidefogdensity>>=1;
-	fogdensity>>=1;
-}
-
-
 //==========================================================================
 //
 // Get current light level
@@ -301,7 +280,7 @@ float gl_GetFogDensity(int lightlevel, PalEntry fogcolor, int sectorfogdensity)
 	if (glset.lightmode & 4)
 	{
 		// uses approximations of Legacy's default settings.
-		density = fogdensity ? fogdensity : 18;
+		density = level.fogdensity ? level.fogdensity : 18;
 	}
 	else if (sectorfogdensity != 0)
 	{
@@ -320,15 +299,15 @@ float gl_GetFogDensity(int lightlevel, PalEntry fogcolor, int sectorfogdensity)
 			density = 0;
 		}
 	}
-	else if (outsidefogdensity != 0 && outsidefogcolor.a != 0xff && (fogcolor.d & 0xffffff) == (outsidefogcolor.d & 0xffffff))
+	else if (level.outsidefogdensity != 0 && APART(level.info->outsidefog) != 0xff && (fogcolor.d & 0xffffff) == (level.info->outsidefog & 0xffffff))
 	{
 		// case 3. outsidefogdensity has already been set as needed
-		density = outsidefogdensity;
+		density = level.outsidefogdensity;
 	}
-	else  if (fogdensity != 0)
+	else  if (level.fogdensity != 0)
 	{
 		// case 4: level has fog density set
-		density = fogdensity;
+		density = level.fogdensity;
 	}
 	else if (lightlevel < 248)
 	{
@@ -343,40 +322,6 @@ float gl_GetFogDensity(int lightlevel, PalEntry fogcolor, int sectorfogdensity)
 }
 
 
-//==========================================================================
-//
-// Check fog by current lighting info
-//
-//==========================================================================
-
-bool gl_CheckFog(FColormap *cm, int lightlevel)
-{
-	// Check for fog boundaries. This needs a few more checks for the sectors
-	bool frontfog;
-
-	PalEntry fogcolor = cm->FadeColor;
-
-	if ((fogcolor.d & 0xffffff) == 0)
-	{
-		frontfog = false;
-	}
-	else if (outsidefogdensity != 0 && outsidefogcolor.a!=0xff && (fogcolor.d & 0xffffff) == (outsidefogcolor.d & 0xffffff))
-	{
-		frontfog = true;
-	}
-	else  if (fogdensity!=0 || (glset.lightmode & 4))
-	{
-		// case 3: level has fog density set
-		frontfog = true;
-	}
-	else 
-	{
-		// case 4: use light level
-		frontfog = lightlevel < 248;
-	}
-	return frontfog;
-}
-
 //==========================================================================
 //
 // Check if the current linedef is a candidate for a fog boundary
@@ -400,10 +345,13 @@ bool gl_CheckFog(sector_t *frontsector, sector_t *backsector)
 	{
 		return false;
 	}
-	else if (outsidefogdensity != 0 && outsidefogcolor.a!=0xff && (fogcolor.d & 0xffffff) == (outsidefogcolor.d & 0xffffff))
+	else if (fogcolor.a != 0)
 	{
 	}
-	else  if (fogdensity!=0 || (glset.lightmode & 4))
+	else if (level.outsidefogdensity != 0 && APART(level.info->outsidefog) != 0xff && (fogcolor.d & 0xffffff) == (level.info->outsidefog & 0xffffff))
+	{
+	}
+	else  if (level.fogdensity!=0 || (glset.lightmode & 4))
 	{
 		// case 3: level has fog density set
 	}
@@ -418,11 +366,11 @@ bool gl_CheckFog(sector_t *frontsector, sector_t *backsector)
 	if ((fogcolor.d & 0xffffff) == 0)
 	{
 	}
-	else if (outsidefogdensity != 0 && outsidefogcolor.a!=0xff && (fogcolor.d & 0xffffff) == (outsidefogcolor.d & 0xffffff))
+	else if (level.outsidefogdensity != 0 && APART(level.info->outsidefog) != 0xff && (fogcolor.d & 0xffffff) == (level.info->outsidefog & 0xffffff))
 	{
 		return false;
 	}
-	else  if (fogdensity!=0 || (glset.lightmode & 4))
+	else  if (level.fogdensity!=0 || (glset.lightmode & 4))
 	{
 		// case 3: level has fog density set
 		return false;
@@ -539,18 +487,3 @@ void gl_SetFog(int lightlevel, int rellight, bool fullbright, const FColormap *c
 		}
 	}
 }
-
-
-//==========================================================================
-//
-// For testing sky fog sheets
-//
-//==========================================================================
-CCMD(skyfog)
-{
-	if (argv.argc()>1)
-	{
-		skyfog = MAX(0, (int)strtoull(argv[1], NULL, 0));
-	}
-}
-
diff --git a/src/gl/renderer/gl_lightdata.h b/src/gl/renderer/gl_lightdata.h
index fa77e5d27b..1b59dda6d8 100644
--- a/src/gl/renderer/gl_lightdata.h
+++ b/src/gl/renderer/gl_lightdata.h
@@ -13,14 +13,12 @@ inline int gl_ClampLight(int lightlevel)
 
 void gl_GetRenderStyle(FRenderStyle style, bool drawopaque, bool allowcolorblending,
 					   int *tm, int *sb, int *db, int *be);
-void gl_SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog);
 
 int gl_CalcLightLevel(int lightlevel, int rellight, bool weapon);
 void gl_SetColor(int light, int rellight, bool fullbright, const FColormap &cm, float alpha, bool weapon=false);
 
 float gl_GetFogDensity(int lightlevel, PalEntry fogcolor, int sectorfogdensity);
 struct sector_t;
-bool gl_CheckFog(FColormap *cm, int lightlevel);
 bool gl_CheckFog(sector_t *frontsector, sector_t *backsector);
 
 void gl_SetFog(int lightlevel, int rellight, bool fullbright, const FColormap *cm, bool isadditive);
@@ -35,11 +33,6 @@ inline bool gl_isWhite(PalEntry color)
 	return color.r + color.g + color.b == 3*0xff;
 }
 
-extern int fogdensity;
-extern int outsidefogdensity;
-extern int skyfog;
-
-
 inline void FColormap::CopyFrom3DLight(lightlist_t *light)
 {
 	LightColor = light->extra_colormap->Color;
diff --git a/src/gl/scene/gl_scene.cpp b/src/gl/scene/gl_scene.cpp
index 0a449ba738..dcaa5612eb 100644
--- a/src/gl/scene/gl_scene.cpp
+++ b/src/gl/scene/gl_scene.cpp
@@ -991,7 +991,6 @@ struct FGLInterface : public FRenderer
 	void StartSerialize(FSerializer &arc) override;
 	void EndSerialize(FSerializer &arc) override;
 	void RenderTextureView (FCanvasTexture *self, AActor *viewpoint, int fov) override;
-	void SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog) override;
 	void PreprocessLevel() override;
 	void CleanLevelData() override;
 	bool RequireGLNodes() override;
@@ -1033,19 +1032,13 @@ void FGLInterface::Precache(uint8_t *texhitlist, TMap<PClassActor*, bool> &actor
 
 void FGLInterface::StartSerialize(FSerializer &arc)
 {
-	if (arc.BeginObject("glinfo"))
-	{
-		arc("fogdensity", fogdensity)
-			("outsidefogdensity", outsidefogdensity)
-			("skyfog", skyfog)
-			.EndObject();
-	}
 }
 
 void FGLInterface::EndSerialize(FSerializer &arc)
 {
 	if (arc.isReading())
 	{
+		// The portal data needs to be recreated after reading a savegame.
 		gl_InitPortals();
 	}
 }
@@ -1170,11 +1163,6 @@ void FGLInterface::RenderTextureView (FCanvasTexture *tex, AActor *Viewpoint, in
 //
 //===========================================================================
 
-void FGLInterface::SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog)
-{
-	gl_SetFogParams(_fogdensity, _outsidefogcolor, _outsidefogdensity, _skyfog);
-}
-
 void FGLInterface::PreprocessLevel() 
 {
 	gl_PreprocessLevel();
diff --git a/src/gl/scene/gl_sky.cpp b/src/gl/scene/gl_sky.cpp
index 70e2686a7d..3186dc987c 100644
--- a/src/gl/scene/gl_sky.cpp
+++ b/src/gl/scene/gl_sky.cpp
@@ -39,7 +39,6 @@
 #include "gl/utility/gl_convert.h"
 
 CVAR(Bool,gl_noskyboxes, false, 0)
-extern int skyfog;
 
 //==========================================================================
 //
@@ -98,7 +97,7 @@ void GLSkyInfo::init(int sky1, PalEntry FadeColor)
 			x_offset[0] = GLRenderer->mSky1Pos;
 		}
 	}
-	if (skyfog > 0)
+	if (level.skyfog > 0)
 	{
 		fadecolor = FadeColor;
 		fadecolor.a = 0;
diff --git a/src/gl/scene/gl_skydome.cpp b/src/gl/scene/gl_skydome.cpp
index b4c241078c..3f7e3dd7ce 100644
--- a/src/gl/scene/gl_skydome.cpp
+++ b/src/gl/scene/gl_skydome.cpp
@@ -86,8 +86,6 @@
 
 CVAR(Float, skyoffset, 0, 0)	// for testing
 
-extern int skyfog;
-
 //-----------------------------------------------------------------------------
 //
 //
@@ -545,10 +543,10 @@ void GLSkyPortal::DrawContents()
 			RenderDome(origin->texture[1], origin->x_offset[1], origin->y_offset, false, FSkyVertexBuffer::SKYMODE_SECONDLAYER);
 		}
 
-		if (skyfog>0 && drawer->FixedColormap == CM_DEFAULT && (origin->fadecolor & 0xffffff) != 0)
+		if (::level.skyfog>0 && drawer->FixedColormap == CM_DEFAULT && (origin->fadecolor & 0xffffff) != 0)
 		{
 			PalEntry FadeColor = origin->fadecolor;
-			FadeColor.a = clamp<int>(skyfog, 0, 255);
+			FadeColor.a = clamp<int>(::level.skyfog, 0, 255);
 
 			gl_RenderState.EnableTexture(false);
 			gl_RenderState.SetObjectColor(FadeColor);
diff --git a/src/gl/scene/gl_walls.cpp b/src/gl/scene/gl_walls.cpp
index 765f285cd1..a1645c102b 100644
--- a/src/gl/scene/gl_walls.cpp
+++ b/src/gl/scene/gl_walls.cpp
@@ -1649,7 +1649,7 @@ void GLWall::Process(seg_t *seg, sector_t * frontsector, sector_t * backsector)
 		bool isportal = seg->linedef->isVisualPortal() && seg->sidedef == seg->linedef->sidedef[0];
 		sector_t *backsec = isportal? seg->linedef->getPortalDestination()->frontsector : backsector;
 
-		bool drawfogboundary = gl_CheckFog(frontsector, backsec);
+		bool drawfogboundary = mDrawer->FixedColormap != CM_DEFAULT && gl_CheckFog(frontsector, backsec);
 		FTexture *tex = TexMan(seg->sidedef->GetTexture(side_t::mid));
 		if (tex != NULL)
 		{
diff --git a/src/p_lnspec.cpp b/src/p_lnspec.cpp
index 9f585dc3d9..e2399fa3db 100644
--- a/src/p_lnspec.cpp
+++ b/src/p_lnspec.cpp
@@ -3350,6 +3350,79 @@ FUNC(LS_Line_SetPortalTarget)
 	return P_ChangePortal(ln, arg0, arg1);
 }
 
+FUNC(LS_Sector_SetPlaneReflection)
+// Sector_SetPlaneReflection (tag, floor, ceiling)
+{
+	int secnum;
+	FSectorTagIterator itr(arg0);
+
+	while ((secnum = itr.Next()) >= 0)
+	{
+		sector_t * s = &level.sectors[secnum];
+		if (!s->floorplane.isSlope()) s->reflect[sector_t::floor] = arg1 / 255.f;
+		if (!s->ceilingplane.isSlope()) level.sectors[secnum].reflect[sector_t::ceiling] = arg2 / 255.f;
+	}
+
+	return true;
+}
+
+
+FUNC(LS_SetGlobalFogParameter)
+// SetGlobalFogParameter (type, value)
+{
+	switch (arg0)
+	{
+	case 0:
+		level.fogdensity = arg1 >> 1;
+		return true;
+
+	case 1:
+		level.outsidefogdensity = arg1 >> 1;
+		return true;
+
+	case 2:
+		level.skyfog = arg1;
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+FUNC(LS_Sector_SetFloorGlow)
+// Sector_SetFloorGlow(tag, height, r, g, b)
+{
+	int secnum;
+	PalEntry color(arg2, arg3, arg4);
+	if (arg1 < 0) color = -1;	// negative height invalidates the glow.
+	FSectorTagIterator itr(arg0);
+
+	while ((secnum = itr.Next()) >= 0)
+	{
+		sector_t * s = &level.sectors[secnum];
+		s->SetGlowColor(sector_t::floor, color);
+		s->SetGlowHeight(sector_t::floor, float(arg1));
+	}
+	return true;
+}
+
+FUNC(LS_Sector_SetCeilingGlow)
+// Sector_SetCeilingGlow(tag, height, r, g, b)
+{
+	int secnum;
+	PalEntry color(arg2, arg3, arg4);
+	if (arg1 < 0) color = -1;	// negative height invalidates the glow.
+	FSectorTagIterator itr(arg0);
+
+	while ((secnum = itr.Next()) >= 0)
+	{
+		sector_t * s = &level.sectors[secnum];
+		s->SetGlowColor(sector_t::ceiling, color);
+		s->SetGlowHeight(sector_t::ceiling, float(arg1));
+	}
+	return true;
+}
+
 static lnSpecFunc LineSpecials[] =
 {
 	/*   0 */ LS_NOP,
@@ -3630,6 +3703,9 @@ static lnSpecFunc LineSpecials[] =
 	/* 274 */ LS_Door_AnimatedClose,
 	/* 275 */ LS_Floor_Stop,
 	/* 276 */ LS_Ceiling_Stop,
+	/* 277 */ LS_Sector_SetFloorGlow,
+	/* 278 */ LS_Sector_SetCeilingGlow,
+
 
 };
 
diff --git a/src/p_saveg.cpp b/src/p_saveg.cpp
index b65f53bcea..623d9bcb38 100644
--- a/src/p_saveg.cpp
+++ b/src/p_saveg.cpp
@@ -944,7 +944,10 @@ void G_SerializeLevel(FSerializer &arc, bool hubload)
 		("level.maptime", level.maptime)
 		("level.totaltime", i)
 		("level.skytexture1", level.skytexture1)
-		("level.skytexture2", level.skytexture2);
+		("level.skytexture2", level.skytexture2)
+		("level.fogdensity", level.fogdensity)
+		("level.outsidefogdensity", level.outsidefogdensity)
+		("level.skyfog", level.skyfog);
 
 	// Hub transitions must keep the current total time
 	if (!hubload)
diff --git a/src/p_sectors.cpp b/src/p_sectors.cpp
index 5e0a8f6ac6..6679e74d17 100644
--- a/src/p_sectors.cpp
+++ b/src/p_sectors.cpp
@@ -1847,6 +1847,38 @@ DEFINE_ACTION_FUNCTION(_Sector, NextLowestFloorAt)
 	 return 0;
  }
 
+ DEFINE_ACTION_FUNCTION(_Sector, GetGlowHeight)
+ {
+	 PARAM_SELF_STRUCT_PROLOGUE(sector_t);
+	 PARAM_INT(pos);
+	 ACTION_RETURN_FLOAT(self->GetGlowHeight(pos));
+ }
+
+ DEFINE_ACTION_FUNCTION(_Sector, GetGlowColor)
+ {
+	 PARAM_SELF_STRUCT_PROLOGUE(sector_t);
+	 PARAM_INT(pos);
+	 ACTION_RETURN_INT(self->GetGlowColor(pos));
+ }
+
+ DEFINE_ACTION_FUNCTION(_Sector, SetGlowHeight)
+ {
+	 PARAM_SELF_STRUCT_PROLOGUE(sector_t);
+	 PARAM_INT(pos);
+	 PARAM_FLOAT(o);
+	 self->SetGlowHeight(pos, float(o));
+	 return 0;
+ }
+
+ DEFINE_ACTION_FUNCTION(_Sector, SetGlowColor)
+ {
+	 PARAM_SELF_STRUCT_PROLOGUE(sector_t);
+	 PARAM_INT(pos);
+	 PARAM_COLOR(o);
+	 self->SetGlowColor(pos, o);
+	 return 0;
+ }
+
  //===========================================================================
  //
  //  line_t exports
@@ -2034,6 +2066,7 @@ DEFINE_ACTION_FUNCTION(_Sector, NextLowestFloorAt)
 	 ACTION_RETURN_INT(self->Index());
  }
 
+
 //===========================================================================
 //
 // 
diff --git a/src/r_defs.h b/src/r_defs.h
index c69450e01d..b9f6a4e361 100644
--- a/src/r_defs.h
+++ b/src/r_defs.h
@@ -794,6 +794,26 @@ public:
 		planes[pos].Light = level;
 	}
 
+	double GetGlowHeight(int pos)
+	{
+		return planes[pos].GlowHeight;
+	}
+
+	PalEntry GetGlowColor(int pos)
+	{
+		return planes[pos].GlowColor;
+	}
+
+	void SetGlowHeight(int pos, float height)
+	{
+		planes[pos].GlowHeight = height;
+	}
+
+	void SetGlowColor(int pos, PalEntry color)
+	{
+		planes[pos].GlowColor = color;
+	}
+
 	FTextureID GetTexture(int pos) const
 	{
 		return planes[pos].Texture;
diff --git a/src/r_renderer.h b/src/r_renderer.h
index 7ab8600d2b..1513430df9 100644
--- a/src/r_renderer.h
+++ b/src/r_renderer.h
@@ -53,7 +53,6 @@ struct FRenderer
 	virtual void SetClearColor(int color) = 0;
 	virtual void Init() = 0;
 	virtual void RenderTextureView (FCanvasTexture *tex, AActor *viewpoint, int fov) = 0;
-	virtual void SetFogParams(int _fogdensity, PalEntry _outsidefogcolor, int _outsidefogdensity, int _skyfog) {}
 	virtual void PreprocessLevel() {}
 	virtual void CleanLevelData() {}
 	virtual bool RequireGLNodes() { return false; }
diff --git a/src/v_palette.cpp b/src/v_palette.cpp
index 07d8af86da..0403dc4333 100644
--- a/src/v_palette.cpp
+++ b/src/v_palette.cpp
@@ -323,7 +323,7 @@ void ReadPalette(int lumpnum, uint8_t *buffer)
 	{
 		FScanner sc;
 		
-		sc.OpenMem(Wads.GetLumpFullName(lumpnum), (char*)lumpmem, lump.GetSize());
+		sc.OpenMem(Wads.GetLumpFullName(lumpnum), (char*)lumpmem, int(lump.GetSize()));
 		sc.MustGetString();
 		sc.MustGetNumber();	// version - ignore
 		sc.MustGetNumber();	
diff --git a/wadsrc/static/zscript/base.txt b/wadsrc/static/zscript/base.txt
index fb50ddb635..ecdd011ff8 100644
--- a/wadsrc/static/zscript/base.txt
+++ b/wadsrc/static/zscript/base.txt
@@ -485,6 +485,9 @@ struct LevelLocals native
 	native bool frozen;
 	native readonly bool infinite_flight;
 	native readonly bool no_dlg_freeze;
+	native readonly int fogdensity;
+	native readonly int outsidefogdensity;
+	native readonly int skyfog;
 // level_info_t *info cannot be done yet.
 
 	native String GetUDMFString(int type, int index, Name key);
diff --git a/wadsrc/static/zscript/mapdata.txt b/wadsrc/static/zscript/mapdata.txt
index 9ebed38183..3242fa1d0a 100644
--- a/wadsrc/static/zscript/mapdata.txt
+++ b/wadsrc/static/zscript/mapdata.txt
@@ -360,6 +360,11 @@ struct Sector native play
 	native void ChangeFlags(int pos, int And, int Or);
 	native int GetPlaneLight(int pos);
 	native void SetPlaneLight(int pos, int level);
+	native double GetGlowHeight(int pos);
+	native color GetGlowColor(int pos);
+	native void SetGlowHeight(int pos, double height);
+	native void SetGlowColor(int pos, color color);
+	
 	native TextureID GetTexture(int pos);
 	native void SetTexture(int pos, TextureID tex, bool floorclip = true);
 	native double GetPlaneTexZ(int pos);