diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 2965d7fc..cd6e97fd 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -974,111 +974,6 @@ void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 		worldlow  = gr_backsector->floorheight;
 #endif
 
-		// Sky culling
-		if (!gr_curline->polyseg) // Don't do it for polyobjects
-		{
-			// Sky Ceilings
-			wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(INT32_MAX);
-
-			if (gr_frontsector->ceilingpic == skyflatnum)
-			{
-				if (gr_backsector->ceilingpic == skyflatnum)
-				{
-					// Both front and back sectors are sky, needs skywall from the frontsector's ceiling, but only if the
-					// backsector is lower
-					if ((worldhigh <= worldtop)
-#ifdef ESLOPE
-					&& (worldhighslope <= worldtopslope)
-#endif
-					)
-					{
-#ifdef ESLOPE
-						wallVerts[0].y = FIXED_TO_FLOAT(worldhigh);
-						wallVerts[1].y = FIXED_TO_FLOAT(worldhighslope);
-#else
-						wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldhigh);
-#endif
-						HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-					}
-				}
-				else
-				{
-					// Only the frontsector is sky, just draw a skywall from the front ceiling
-#ifdef ESLOPE
-					wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
-					wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
-#else
-					wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldtop);
-#endif
-					HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-				}
-			}
-			else if (gr_backsector->ceilingpic == skyflatnum)
-			{
-				// Only the backsector is sky, just draw a skywall from the front ceiling
-#ifdef ESLOPE
-				wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
-				wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
-#else
-				wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldtop);
-#endif
-				HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-			}
-
-
-			// Sky Floors
-			wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(INT32_MIN);
-
-			if (gr_frontsector->floorpic == skyflatnum)
-			{
-				if (gr_backsector->floorpic == skyflatnum)
-				{
-					// Both front and back sectors are sky, needs skywall from the backsector's floor, but only if the
-					// it's higher, also needs to check for bottomtexture as the floors don't usually move down
-					// when both sides are sky floors
-					if ((worldlow >= worldbottom)
-#ifdef ESLOPE
-					&& (worldlowslope >= worldbottomslope)
-#endif
-					&& !(gr_sidedef->bottomtexture))
-					{
-#ifdef ESLOPE
-						wallVerts[3].y = FIXED_TO_FLOAT(worldlow);
-						wallVerts[2].y = FIXED_TO_FLOAT(worldlowslope);
-#else
-						wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(worldlow);
-#endif
-
-						HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-					}
-				}
-				else
-				{
-					// Only the backsector has sky, just draw a skywall from the back floor
-#ifdef ESLOPE
-					wallVerts[3].y = FIXED_TO_FLOAT(worldbottom);
-					wallVerts[2].y = FIXED_TO_FLOAT(worldbottomslope);
-#else
-					wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(worldbottom);
-#endif
-
-					HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-				}
-			}
-			else if ((gr_backsector->floorpic == skyflatnum) && !(gr_sidedef->bottomtexture))
-			{
-				// Only the backsector has sky, just draw a skywall from the back floor if there's no bottomtexture
-#ifdef ESLOPE
-				wallVerts[3].y = FIXED_TO_FLOAT(worldlow);
-				wallVerts[2].y = FIXED_TO_FLOAT(worldlowslope);
-#else
-				wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(worldlow);
-#endif
-
-				HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-			}
-		}
-
 		// hack to allow height changes in outdoor areas
 		// This is what gets rid of the upper textures if there should be sky
 		if (gr_frontsector->ceilingpic == skyflatnum &&
@@ -1671,53 +1566,6 @@ void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 					HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap);
 			}
 		}
-		else
-		{
-#ifdef ESLOPE
-			//Set textures properly on single sided walls that are sloped
-			wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
-			wallVerts[0].y = FIXED_TO_FLOAT(worldbottom);
-			wallVerts[2].y = FIXED_TO_FLOAT(worldtopslope);
-			wallVerts[1].y = FIXED_TO_FLOAT(worldbottomslope);
-#else
-			// set top/bottom coords
-			wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
-			wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldbottom);
-#endif
-
-			// When there's no midtexture, draw a skywall to prevent rendering behind it
-			HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-		}
-
-
-		// Single sided lines are simple for skywalls, just need to draw from the top or bottom of the sector if there's
-		// a sky flat
-		if (!gr_curline->polyseg)
-		{
-			if (gr_frontsector->ceilingpic == skyflatnum) // It's a single-sided line with sky for its sector
-			{
-				wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(INT32_MAX);
-#ifdef ESLOPE
-				wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
-				wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
-#else
-				wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldtop);
-#endif
-				HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-			}
-			if (gr_frontsector->floorpic == skyflatnum)
-			{
-#ifdef ESLOPE
-				wallVerts[3].y = FIXED_TO_FLOAT(worldbottom);
-				wallVerts[2].y = FIXED_TO_FLOAT(worldbottomslope);
-#else
-				wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(worldbottom);
-#endif
-				wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(INT32_MIN);
-
-				HWR_DrawSkyWall(wallVerts, &Surf, 0, 0);
-			}
-		}
 	}