- moved the static sky variables into FLevelLocals and removed the redundant ones for the texture ID.

src/c_cmds.cpp

@@ -1055,21 +1055,21 @@ CCMD(changesky)
 
 	if (netgame || argv.argc()<2) return;
 
+	// This only alters the primary level's sky setting. For testing out a sky that is sufficient.
 	sky1name = argv[1];
 	if (sky1name[0] != 0)
 	{
 		FTextureID newsky = TexMan.GetTextureID(sky1name, ETextureType::Wall, FTextureManager::TEXMAN_Overridable | FTextureManager::TEXMAN_ReturnFirst);
 		if (newsky.Exists())
 		{
-			// This only alters the primary level's sky setting.
-			sky1texture = currentUILevel->skytexture1 = newsky;
+			currentUILevel->skytexture1 = newsky;
 		}
 		else
 		{
 			Printf("changesky: Texture '%s' not found\n", sky1name);
 		}
 	}
-	R_InitSkyMap ();
+	InitSkyMap (currentUILevel);
 }
 
 //-----------------------------------------------------------------------------

src/d_main.cpp

@@ -390,8 +390,7 @@ CUSTOM_CVAR (Int, dmflags, 0, CVAR_SERVERINFO)
 {
 	// In case DF_NO_FREELOOK was changed, reinitialize the sky
 	// map. (If no freelook, then no need to stretch the sky.)
-	if (sky1texture.isValid())
-		R_InitSkyMap ();
+	R_InitSkyMap ();
 
 	if (self & DF_NO_FREELOOK)
 	{

src/fragglescript/t_load.cpp

@@ -143,8 +143,8 @@ void FScriptLoader::ParseInfoCmd(char *line, FString &scriptsrc)
 			sc.MustGetStringName("=");
 			sc.MustGetString();
 		
-			sky2texture = sky1texture = Level->skytexture1 = Level->skytexture2 = TexMan.GetTextureID (sc.String, ETextureType::Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
-			R_InitSkyMap ();
+			Level->skytexture1 = Level->skytexture2 = TexMan.GetTextureID (sc.String, ETextureType::Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
+			InitSkyMap (Level);
 		}
 		else if (sc.Compare("interpic"))
 		{

src/g_level.cpp

@@ -1001,14 +1001,8 @@ void G_DoLoadLevel (const FString &nextmapname, int position, bool autosave, boo
 	//	setting one.
 	skyflatnum = TexMan.GetTextureID (gameinfo.SkyFlatName, ETextureType::Flat, FTextureManager::TEXMAN_Overridable);
 
-	// DOOM determines the sky texture to be used
-	// depending on the current episode and the game version.
-	// [RH] Fetch sky parameters from FLevelLocals.
-	sky1texture = level.skytexture1;
-	sky2texture = level.skytexture2;
-
 	// [RH] Set up details about sky rendering
-	R_InitSkyMap ();
+	InitSkyMap (&level);
 
 	for (i = 0; i < MAXPLAYERS; i++)
 	{ 
@@ -2162,9 +2156,9 @@ DEFINE_ACTION_FUNCTION(FLevelLocals, ChangeSky)
 	PARAM_SELF_STRUCT_PROLOGUE(FLevelLocals);
 	PARAM_INT(sky1);
 	PARAM_INT(sky2);
-	sky1texture = self->skytexture1 = FSetTextureID(sky1);
-	sky2texture = self->skytexture2 = FSetTextureID(sky2);
-	R_InitSkyMap();
+	self->skytexture1 = FSetTextureID(sky1);
+	self->skytexture2 = FSetTextureID(sky2);
+	InitSkyMap(self);
 	return 0;
 }
 

src/g_levellocals.h

@@ -492,6 +492,10 @@ public:
 	float		skyspeed1;				// Scrolling speed of sky textures, in pixels per ms
 	float		skyspeed2;
 
+	double		sky1pos, sky2pos;
+	float		hw_sky1pos, hw_sky2pos;
+	bool		skystretch;
+
 	int			total_secrets;
 	int			found_secrets;
 

src/hwrenderer/scene/hw_sky.cpp

@@ -72,24 +72,24 @@ void GLSkyInfo::init(HWDrawInfo *di, int sky1, PalEntry FadeColor)
 	normalsky:
 		if (di->Level->flags&LEVEL_DOUBLESKY)
 		{
-			texture[1] = FMaterial::ValidateTexture(sky1texture, false, true);
-			x_offset[1] = hw_sky1pos;
+			texture[1] = FMaterial::ValidateTexture(di->Level->skytexture1, false, true);
+			x_offset[1] = di->Level->hw_sky1pos;
 			doublesky = true;
 		}
 
 		if ((di->Level->flags&LEVEL_SWAPSKIES || (sky1 == PL_SKYFLAT) || (di->Level->flags&LEVEL_DOUBLESKY)) &&
-			sky2texture != sky1texture)	// If both skies are equal use the scroll offset of the first!
+			di->Level->skytexture2 != di->Level->skytexture1)	// If both skies are equal use the scroll offset of the first!
 		{
-			texture[0] = FMaterial::ValidateTexture(sky2texture, false, true);
-			skytexno1 = sky2texture;
+			texture[0] = FMaterial::ValidateTexture(di->Level->skytexture2, false, true);
+			skytexno1 = di->Level->skytexture2;
 			sky2 = true;
-			x_offset[0] = hw_sky2pos;
+			x_offset[0] = di->Level->hw_sky2pos;
 		}
 		else if (!doublesky)
 		{
-			texture[0] = FMaterial::ValidateTexture(sky1texture, false, true);
-			skytexno1 = sky1texture;
-			x_offset[0] = hw_sky1pos;
+			texture[0] = FMaterial::ValidateTexture(di->Level->skytexture1, false, true);
+			skytexno1 = di->Level->skytexture1;
+			x_offset[0] = di->Level->hw_sky1pos;
 		}
 	}
 	if (di->Level->skyfog > 0)

src/p_acs.cpp

@@ -9762,13 +9762,13 @@ scriptwait:
 				sky2name = Level->Behaviors.LookupString (STACK(1));
 				if (sky1name[0] != 0)
 				{
-					sky1texture = Level->skytexture1 = TexMan.GetTextureID(sky1name, ETextureType::Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
+					Level->skytexture1 = TexMan.GetTextureID(sky1name, ETextureType::Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
 				}
 				if (sky2name[0] != 0)
 				{
-					sky2texture = Level->skytexture2 = TexMan.GetTextureID(sky2name, ETextureType::Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
+					Level->skytexture2 = TexMan.GetTextureID(sky2name, ETextureType::Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
 				}
-				R_InitSkyMap ();
+				InitSkyMap (Level);
 				sp -= 2;
 			}
 			break;

src/p_saveg.cpp

@@ -57,6 +57,7 @@
 #include "g_levellocals.h"
 #include "events.h"
 #include "p_destructible.h"
+#include "r_sky.h"
 #include "fragglescript/t_script.h"
 
 //==========================================================================
@@ -976,9 +977,7 @@ void FLevelLocals::Serialize(FSerializer &arc, bool hubload)
 
 	if (arc.isReading())
 	{
-		sky1texture = skytexture1;
-		sky2texture = skytexture2;
-		R_InitSkyMap();
+		InitSkyMap(this);
 		AirControlChanged();
 		bglobal.freeze = !!(frozenstate & 2);
 	}

src/p_setup.cpp

@@ -175,20 +175,14 @@ static void PrecacheLevel(FLevelLocals *Level)
 		AddToList(hitlist.Data(), Level->sides[i].GetTexture(side_t::bottom), FTextureManager::HIT_Wall);
 	}
 
-	// Sky texture is always present.
-	// Note that F_SKY1 is the name used to
-	//	indicate a sky floor/ceiling as a flat,
-	//	while the sky texture is stored like
-	//	a wall texture, with an episode dependant
-	//	name.
 
-	if (sky1texture.isValid())
+	if (Level->skytexture1.isValid())
 	{
-		AddToList(hitlist.Data(), sky1texture, FTextureManager::HIT_Sky);
+		AddToList(hitlist.Data(), Level->skytexture1, FTextureManager::HIT_Sky);
 	}
-	if (sky2texture.isValid())
+	if (Level->skytexture2.isValid())
 	{
-		AddToList(hitlist.Data(), sky2texture, FTextureManager::HIT_Sky);
+		AddToList(hitlist.Data(), Level->skytexture2, FTextureManager::HIT_Sky);
 	}
 
 	for (auto n : gameinfo.PrecachedTextures)

src/polyrenderer/scene/poly_sky.cpp

@@ -291,9 +291,10 @@ void PolySkySetup::Update()
 	double skyscale = 0.0;
 	float skyiscale = 0.0f;
 	fixed_t sky1cyl = 0, sky2cyl = 0;
+	auto Level = PolyRenderer::Instance()->Level;
 
-	auto skytex1 = TexMan.GetPalettedTexture(sky1texture, true);
-	auto skytex2 = TexMan.GetPalettedTexture(sky2texture, true);
+	auto skytex1 = TexMan.GetPalettedTexture(Level->skytexture1, true);
+	auto skytex2 = TexMan.GetPalettedTexture(Level->skytexture2, true);
 
 	if (skytex1)
 	{
@@ -307,7 +308,7 @@ void PolySkySetup::Update()
 		}
 		else if (skyheight > 200)
 		{
-			skytexturemid = (200 - skyheight) * sskytex1->GetScale().Y + ((r_skymode == 2 && !(PolyRenderer::Instance()->Level->flags & LEVEL_FORCETILEDSKY)) ? skytex1->GetSkyOffset() : 0);
+			skytexturemid = (200 - skyheight) * sskytex1->GetScale().Y + ((r_skymode == 2 && !(Level->flags & LEVEL_FORCETILEDSKY)) ? skytex1->GetSkyOffset() : 0);
 		}
 
 		if (viewwidth != 0 && viewheight != 0)
@@ -319,7 +320,7 @@ void PolySkySetup::Update()
 			skyscale *= float(90. / r_viewpoint.FieldOfView.Degrees);
 		}
 
-		if (skystretch)
+		if (Level->skystretch)
 		{
 			skyscale *= (double)SKYSTRETCH_HEIGHT / skyheight;
 			skyiscale *= skyheight / (float)SKYSTRETCH_HEIGHT;
@@ -339,13 +340,13 @@ void PolySkySetup::Update()
 
 	if ((PolyRenderer::Instance()->Level->flags & LEVEL_SWAPSKIES) && !(PolyRenderer::Instance()->Level->flags & LEVEL_DOUBLESKY))
 	{
-		sky1tex = sky2texture;
+		sky1tex = Level->skytexture2;
 	}
 	else
 	{
-		sky1tex = sky1texture;
+		sky1tex = Level->skytexture1;
 	}
-	sky2tex = sky2texture;
+	sky2tex = Level->skytexture2;
 	skymid = skytexturemid;
 	skyangle = 0;
 
@@ -360,8 +361,8 @@ void PolySkySetup::Update()
 		else
 			backskytex = nullptr;
 		skyflip = false;
-		frontdpos = sky1pos;
-		backdpos = sky2pos;
+		frontdpos = Level->sky1pos;
+		backdpos = Level->sky2pos;
 		frontcyl = sky1cyl;
 		backcyl = sky2cyl;
 	}
@@ -371,7 +372,7 @@ void PolySkySetup::Update()
 		backskytex = nullptr;
 		frontcyl = sky2cyl;
 		skyflip = false;
-		frontdpos = sky2pos;
+		frontdpos = Level->sky2pos;
 	}
 	else
 	{	// MBF's linedef-controlled skies

src/r_sky.cpp

@@ -43,10 +43,6 @@
 // sky mapping
 //
 FTextureID	skyflatnum;
-FTextureID	sky1texture,	sky2texture;
-double		sky1pos,		sky2pos;
-float		hw_sky1pos, hw_sky2pos;
-bool		skystretch;
 
 // [RH] Stretch sky texture if not taller than 128 pixels?
 // Also now controls capped skies. 0 = normal, 1 = stretched, 2 = capped
@@ -65,31 +61,32 @@ CVAR(Float, skyoffset, 0, 0)	// for testing
 //
 //==========================================================================
 
-void R_InitSkyMap()
+void InitSkyMap(FLevelLocals *Level)
 {
 	int skyheight;
 	FTexture *skytex1, *skytex2;
 
 	// Do not allow the null texture which has no bitmap and will crash.
-	if (sky1texture.isNull())
+	if (Level->skytexture1.isNull())
 	{
-		sky1texture = TexMan.CheckForTexture("-noflat-", ETextureType::Any);
+		Level->skytexture1 = TexMan.CheckForTexture("-noflat-", ETextureType::Any);
 	}
-	if (sky2texture.isNull())
+	if (Level->skytexture2.isNull())
 	{
-		sky2texture = TexMan.CheckForTexture("-noflat-", ETextureType::Any);
+		Level->skytexture2 = TexMan.CheckForTexture("-noflat-", ETextureType::Any);
 	}
 
-	skytex1 = TexMan.GetTexture(sky1texture, false);
-	skytex2 = TexMan.GetTexture(sky2texture, false);
+	skytex1 = TexMan.GetTexture(Level->skytexture1, false);
+	skytex2 = TexMan.GetTexture(Level->skytexture2, false);
 
 	if (skytex1 == nullptr)
 		return;
 
-	if ((level.flags & LEVEL_DOUBLESKY) && skytex1->GetDisplayHeight() != skytex2->GetDisplayHeight())
+	if ((Level->flags & LEVEL_DOUBLESKY) && skytex1->GetDisplayHeight() != skytex2->GetDisplayHeight())
 	{
 		Printf(TEXTCOLOR_BOLD "Both sky textures must be the same height." TEXTCOLOR_NORMAL "\n");
-		sky2texture = sky1texture;
+		Level->flags &= ~LEVEL_DOUBLESKY;
+		Level->skytexture1 = Level->skytexture2;
 	}
 
 	// There are various combinations for sky rendering depending on how tall the sky is:
@@ -109,14 +106,23 @@ void R_InitSkyMap()
 
 	if (skyheight >= 128 && skyheight < 200)
 	{
-		skystretch = (r_skymode == 1
+		Level->skystretch = (r_skymode == 1
 			&& skyheight >= 128
-			&& level.IsFreelookAllowed()
-			&& !(level.flags & LEVEL_FORCETILEDSKY)) ? 1 : 0;
+			&& Level->IsFreelookAllowed()
+			&& !(Level->flags & LEVEL_FORCETILEDSKY)) ? 1 : 0;
 	}
-	else skystretch = false;
+	else Level->skystretch = false;
 }
 
+void R_InitSkyMap()
+{
+	for(auto Level : AllLevels())
+	{
+		InitSkyMap(Level);
+	}
+}
+
+
 //==========================================================================
 //
 // R_UpdateSky
@@ -127,14 +133,16 @@ void R_InitSkyMap()
 
 void R_UpdateSky (uint64_t mstime)
 {
-	// Scroll the sky
 	double ms = (double)mstime * FRACUNIT;
-	sky1pos = ms * level.skyspeed1;
-	sky2pos = ms * level.skyspeed2;
-
-	// The hardware renderer uses a different value range and clamps it to a single rotation
-	hw_sky1pos = (float)(fmod((double(mstime) * level.skyspeed1), 1024.) * (90. / 256.));
-	hw_sky2pos = (float)(fmod((double(mstime) * level.skyspeed2), 1024.) * (90. / 256.));
+	for(auto Level : AllLevels())
+	{
+		// Scroll the sky
+		Level->sky1pos = ms * level.skyspeed1;
+		Level->sky2pos = ms * level.skyspeed2;
 
+		// The hardware renderer uses a different value range and clamps it to a single rotation
+		Level->hw_sky1pos = (float)(fmod((double(mstime) * level.skyspeed1), 1024.) * (90. / 256.));
+		Level->hw_sky2pos = (float)(fmod((double(mstime) * level.skyspeed2), 1024.) * (90. / 256.));
+	}
 }
 

src/r_sky.h

@@ -30,17 +30,16 @@
 
 #include "textures/textures.h"
 
+struct FLevelLocals;
+
 extern FTextureID	skyflatnum;
-extern FTextureID	sky1texture,	sky2texture;
-extern double		sky1pos,		sky2pos;
-extern float		hw_sky1pos, hw_sky2pos;
-extern bool		skystretch;
 extern int		freelookviewheight;
 
 #define SKYSTRETCH_HEIGHT 228
 
 // Called whenever the sky changes.
-void R_InitSkyMap		();
+void InitSkyMap(FLevelLocals *Level);
+void R_InitSkyMap();
 void R_UpdateSky (uint64_t mstime);
 
 // 57 world units roughly represent one sky texel for the glTranslate call.

src/swrenderer/plane/r_skyplane.cpp

@@ -72,8 +72,8 @@ namespace swrenderer
 		Thread = thread;
 		auto Level = Thread->Viewport->Level();
 
-		auto skytex1 = TexMan.GetPalettedTexture(sky1texture, true);
-		auto skytex2 = TexMan.GetPalettedTexture(sky2texture, true);
+		auto skytex1 = TexMan.GetPalettedTexture(Level->skytexture1, true);
+		auto skytex2 = TexMan.GetPalettedTexture(Level->skytexture2, true);
 
 		if (skytex1 == nullptr)
 			return;
@@ -100,7 +100,7 @@ namespace swrenderer
 			skyscale *= float(90. / r_viewpoint.FieldOfView.Degrees);
 		}
 
-		if (skystretch)
+		if (Level->skystretch)
 		{
 			skyscale *= (double)SKYSTRETCH_HEIGHT / skyheight;
 			skyiscale *= skyheight / (float)SKYSTRETCH_HEIGHT;
@@ -123,13 +123,13 @@ namespace swrenderer
 
 		if ((Level->flags & LEVEL_SWAPSKIES) && !(Level->flags & LEVEL_DOUBLESKY))
 		{
-			sky1tex = sky2texture;
+			sky1tex = Level->skytexture2;
 		}
 		else
 		{
-			sky1tex = sky1texture;
+			sky1tex = Level->skytexture1;
 		}
-		sky2tex = sky2texture;
+		sky2tex = Level->skytexture2;
 		skymid = skytexturemid;
 		skyangle = Thread->Viewport->viewpoint.Angles.Yaw.BAMs();
 
@@ -144,8 +144,8 @@ namespace swrenderer
 				else
 					backskytex = NULL;
 				skyflip = 0;
-				frontdpos = sky1pos;
-				backdpos = sky2pos;
+				frontdpos = Level->sky1pos;
+				backdpos = Level->sky2pos;
 				frontcyl = sky1cyl;
 				backcyl = sky2cyl;
 			}
@@ -155,7 +155,7 @@ namespace swrenderer
 				backskytex = NULL;
 				frontcyl = sky2cyl;
 				skyflip = 0;
-				frontdpos = sky2pos;
+				frontdpos = Level->sky2pos;
 			}
 			else
 			{	// MBF's linedef-controlled skies
@@ -202,7 +202,7 @@ namespace swrenderer
 
 				int frontxscale = int(frontskytex->GetScale().X * 1024);
 				frontcyl = MAX(frontskytex->GetWidth(), frontxscale);
-				if (skystretch)
+				if (Level->skystretch)
 				{
 					skymid = skymid * frontskytex->GetScaledHeightDouble() / SKYSTRETCH_HEIGHT;
 				}