From 0a887948eb456540a69a4de6cefdc5bae398311a Mon Sep 17 00:00:00 2001
From: Monster Iestyn <iestynjealous@ntlworld.com>
Date: Mon, 25 Apr 2016 18:48:14 +0100
Subject: [PATCH] Ensure pixhigh/pixlow is always set whenever the game decides
 a top/bottom texture should be drawn

This fixes the rendering glitches encountered around slopes in Glacier Gear, yes. :)
---
 src/r_segs.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/src/r_segs.c b/src/r_segs.c
index 574421fb0..3f11bb364 100644
--- a/src/r_segs.c
+++ b/src/r_segs.c
@@ -2696,11 +2696,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
 		worldlowslope >>= 4;
 #endif
 
-		if (worldhigh < worldtop
-#ifdef ESLOPE
-			|| worldhighslope < worldtopslope
-#endif
-			)
+		if (toptexture)
 		{
 			pixhigh = (centeryfrac>>4) - FixedMul (worldhigh, rw_scale);
 			pixhighstep = -FixedMul (rw_scalestep,worldhigh);
@@ -2713,11 +2709,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
 #endif
 		}
 
-		if (worldlow > worldbottom
-#ifdef ESLOPE
-			|| worldlowslope > worldbottomslope
-#endif
-			)
+		if (bottomtexture)
 		{
 			pixlow = (centeryfrac>>4) - FixedMul (worldlow, rw_scale);
 			pixlowstep = -FixedMul (rw_scalestep,worldlow);