- render sproites through sector portals.

src/gl/renderer/gl_renderer.cpp

@@ -170,10 +170,10 @@ void FGLRenderer::ProcessLowerMiniseg(seg_t *seg, sector_t * frontsector, sector
 //
 //===========================================================================
 
-void FGLRenderer::ProcessSprite(AActor *thing, sector_t *sector)
+void FGLRenderer::ProcessSprite(AActor *thing, sector_t *sector, bool thruportal)
 {
 	GLSprite glsprite;
-	glsprite.Process(thing, sector);
+	glsprite.Process(thing, sector, thruportal);
 }
 
 //===========================================================================

src/gl/renderer/gl_renderer.h

@@ -118,7 +118,7 @@ public:
 	void Clear(int left, int top, int right, int bottom, int palcolor, uint32 color);
 
 	void ProcessLowerMiniseg(seg_t *seg, sector_t * frontsector, sector_t * backsector);
-	void ProcessSprite(AActor *thing, sector_t *sector);
+	void ProcessSprite(AActor *thing, sector_t *sector, bool thruportal);
 	void ProcessParticle(particle_t *part, sector_t *sector);
 	void ProcessSector(sector_t *fakesector);
 	void FlushTextures();

src/gl/scene/gl_bsp.cpp

@@ -368,24 +368,37 @@ static inline void RenderThings(subsector_t * sub, sector_t * sector)
 
 	SetupSprite.Clock();
 	sector_t * sec=sub->sector;
-	if (sec->thinglist != NULL)
+	// Handle all things in sector.
+	for (AActor * thing = sec->thinglist; thing; thing = thing->snext)
 	{
-		// Handle all things in sector.
-		for (AActor * thing = sec->thinglist; thing; thing = thing->snext)
+		FIntCVar *cvar = thing->GetClass()->distancecheck;
+		if (cvar != NULL && *cvar >= 0)
 		{
-			FIntCVar *cvar = thing->GetClass()->distancecheck;
-			if (cvar != NULL && *cvar >= 0)
+			double dist = (thing->Pos() - ViewPos).LengthSquared();
+			double check = (double)**cvar;
+			if (dist >= check * check)
 			{
-				double dist = (thing->Pos() - ViewPos).LengthSquared();
-				double check = (double)**cvar;
-				if (dist >= check * check)
-				{
-					continue;
-				}
+				continue;
 			}
-
-			GLRenderer->ProcessSprite(thing, sector);
 		}
+
+		GLRenderer->ProcessSprite(thing, sector, false);
+	}
+	for (msecnode_t *node = sec->render_thinglist; node; node = node->m_snext)
+	{
+		AActor *thing = node->m_thing;
+		FIntCVar *cvar = thing->GetClass()->distancecheck;
+		if (cvar != NULL && *cvar >= 0)
+		{
+			double dist = (thing->Pos() - ViewPos).LengthSquared();
+			double check = (double)**cvar;
+			if (dist >= check * check)
+			{
+				continue;
+			}
+		}
+
+		GLRenderer->ProcessSprite(thing, sector, true);
 	}
 	SetupSprite.Unclock();
 }

src/gl/scene/gl_sprite.cpp

@@ -504,10 +504,11 @@ void GLSprite::Process(AActor* thing, sector_t * sector, bool thruportal)
 	}
 
 	// If this thing is in a map section that's not in view it can't possibly be visible
-	if (!(currentmapsection[thing->subsector->mapsection >> 3] & (1 << (thing->subsector->mapsection & 7)))) return;
+	if (!thruportal && !(currentmapsection[thing->subsector->mapsection >> 3] & (1 << (thing->subsector->mapsection & 7)))) return;
 
 	// [RH] Interpolate the sprite's position to make it look smooth
 	DVector3 thingpos = thing->InterpolatedPosition(r_TicFracF);
+	if (thruportal) thingpos += Displacements.getOffset(thing->Sector->PortalGroup, sector->PortalGroup);
 
 	// Too close to the camera. This doesn't look good if it is a sprite.
 	if (fabs(thingpos.X - ViewPos.X) < 2 && fabs(thingpos.Y - ViewPos.Y) < 2)

src/p_trace.cpp

@@ -308,6 +308,7 @@ void FTraceInfo::Setup3DFloors()
 				{
 					Results->Crossed3DWater = rover;
 					Results->Crossed3DWaterPos = Results->HitPos;
+					Results->Distance = 0;
 				}
 			}
 
@@ -444,6 +445,7 @@ bool FTraceInfo::LineCheck(intercept_t *in, double dist, DVector3 hit)
 		{
 			Results->CrossedWater = &sectors[CurSector->sectornum];
 			Results->CrossedWaterPos = Results->HitPos;
+			Results->Distance = 0;
 		}
 	}
 
@@ -747,6 +749,7 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 					{
 						Results->Crossed3DWater = rover;
 						Results->Crossed3DWaterPos = Results->HitPos;
+						Results->Distance = 0;
 					}
 				}
 			}
@@ -835,6 +838,7 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 		{
 			Results->CrossedWater = &sectors[CurSector->sectornum];
 			Results->CrossedWaterPos = Results->HitPos;
+			Results->Distance = 0;
 		}
 		Results = res;
 	}