From 2919bdf4fe8f01fb43df49087e614d2b0b633405 Mon Sep 17 00:00:00 2001
From: Randy Heit <rheit@zdoom.fake>
Date: Sat, 23 Feb 2013 05:15:32 +0000
Subject: [PATCH] - Fixed: Skyboxes never cleared planes when a 3D floor was in
 view.

SVN r4164 (trunk)
---
 src/r_3dfloors.cpp | 2 ++
 src/r_main.cpp     | 2 +-
 src/r_plane.cpp    | 8 ++++----
 src/r_plane.h      | 2 +-
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/r_3dfloors.cpp b/src/r_3dfloors.cpp
index fbdc34edce..412a6057a1 100644
--- a/src/r_3dfloors.cpp
+++ b/src/r_3dfloors.cpp
@@ -140,6 +140,7 @@ void R_3D_EnterSkybox()
 	height_top = NULL;
 	height_cur = NULL;
 	height_max = -1;
+	fakeActive = 0;
 
 	CurrentSkybox++;
 }
@@ -157,6 +158,7 @@ void R_3D_LeaveSkybox()
 	height_top = current.height_top;
 	height_cur = current.height_cur;
 	height_max = current.height_max;
+	fakeActive = height_top != NULL;
 
 	CurrentSkybox--;
 }
diff --git a/src/r_main.cpp b/src/r_main.cpp
index 80edd18d6d..f4ba8c6e52 100644
--- a/src/r_main.cpp
+++ b/src/r_main.cpp
@@ -762,7 +762,7 @@ void R_RenderActorView (AActor *actor, bool dontmaplines)
 	MaskedCycles.Reset();
 	WallScanCycles.Reset();
 
-	fakeActive = 0; // kg3D - reset fake floor idicator
+	fakeActive = 0; // kg3D - reset fake floor indicator
 	R_3D_ResetClip(); // reset clips (floor/ceiling)
 
 	R_SetupBuffer ();
diff --git a/src/r_plane.cpp b/src/r_plane.cpp
index 75c308b5a8..d3c5f8c94a 100644
--- a/src/r_plane.cpp
+++ b/src/r_plane.cpp
@@ -1002,15 +1002,15 @@ static void R_DrawSkyStriped (visplane_t *pl)
 CVAR (Bool, tilt, false, 0);
 //CVAR (Int, pa, 0, 0)
 
-void R_DrawPlanes ()
+int R_DrawPlanes ()
 {
 	visplane_t *pl;
 	int i;
-	int vpcount;
+	int vpcount = 0;
 
 	ds_color = 3;
 
-	for (i = vpcount = 0; i < MAXVISPLANES; i++)
+	for (i = 0; i < MAXVISPLANES; i++)
 	{
 		for (pl = visplanes[i]; pl; pl = pl->next)
 		{
@@ -1024,6 +1024,7 @@ void R_DrawPlanes ()
 			}
 		}
 	}
+	return vpcount;
 }
 
 // kg3D - draw all visplanes with "height"
@@ -1329,7 +1330,6 @@ void R_DrawSkyBoxes ()
 
 	for (*freehead = visplanes[MAXVISPLANES], visplanes[MAXVISPLANES] = NULL; *freehead; )
 		freehead = &(*freehead)->next;
-
 }
 
 ADD_STAT(skyboxes)
diff --git a/src/r_plane.h b/src/r_plane.h
index 6bcb36a193..7ad711bcc0 100644
--- a/src/r_plane.h
+++ b/src/r_plane.h
@@ -87,7 +87,7 @@ void R_InitPlanes ();
 void R_DeinitPlanes ();
 void R_ClearPlanes (bool fullclear);
 
-void R_DrawPlanes ();
+int R_DrawPlanes ();
 void R_DrawSkyBoxes ();
 void R_DrawSkyPlane (visplane_t *pl);
 void R_DrawNormalPlane (visplane_t *pl, fixed_t alpha, bool additive, bool masked);