diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 94508fca5..4a769f95d 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -1027,10 +1027,12 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 	fixed_t h, l; // 3D sides and 2s middle textures
 	fixed_t hS, lS;
 
-	FUINT lightnum = 255; // shut up compiler
+	FUINT lightnum = 255;
 	extracolormap_t *colormap;
 	FSurfaceInfo Surf;
 
+	boolean tripwire;
+
 	gl_sidedef = gl_curline->sidedef;
 	gl_linedef = gl_curline->linedef;
 
@@ -1086,7 +1088,13 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 		cliphigh = (float)(texturehpeg + (gl_curline->flength*FRACUNIT));
 	}
 
-	lightnum = HWR_CalcWallLight(gl_frontsector->lightlevel, gl_curline);
+	tripwire = P_IsLineTripWire(gl_linedef);
+
+	if (tripwire == false)
+	{
+		lightnum = HWR_CalcWallLight(gl_frontsector->lightlevel, gl_curline);
+	}
+
 	colormap = gl_frontsector->extra_colormap;
 
 	if (gl_frontsector)
@@ -1462,7 +1470,7 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 			// This will cause the midtexture appear on top, if a FOF overlaps with it.
 			blendmode |= PF_Decal;
 
-			if (gl_frontsector->numlights)
+			if (tripwire == false && gl_frontsector->numlights)
 			{
 				if (!(blendmode & PF_Masked))
 					HWR_SplitWall(gl_frontsector, wallVerts, gl_midtexture, &Surf, FOF_TRANSLUCENT, NULL, blendmode); // vanilla just uses PF_Masked here - if we run into any issues, maybe change to that
diff --git a/src/r_segs.c b/src/r_segs.c
index 4a270d8c8..bdabe2026 100644
--- a/src/r_segs.c
+++ b/src/r_segs.c
@@ -170,8 +170,10 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
 	texnum = R_GetTextureNum(curline->sidedef->midtexture);
 	bmnum = R_GetTextureBrightmap(texnum);
 	windowbottom = windowtop = sprbotscreen = INT32_MAX;
+	boolean tripwire;
 
 	ldef = curline->linedef;
+	tripwire = P_IsLineTripWire(ldef);
 	if (!ldef->alpha)
 		return;
 
@@ -239,7 +241,7 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
 
 	// Setup lighting based on the presence/lack-of 3D floors.
 	dc_numlights = 0;
-	if (frontsector->numlights)
+	if (tripwire == false && frontsector->numlights)
 	{
 		dc_numlights = frontsector->numlights;
 		if (dc_numlights >= dc_maxlights)
@@ -286,17 +288,27 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
 	}
 	else
 	{
-		if ((R_CheckColumnFunc(COLDRAWFUNC_FUZZY) == false)
-			|| (frontsector->extra_colormap && (frontsector->extra_colormap->flags & CMF_FOG)))
-			lightnum = (frontsector->lightlevel >> LIGHTSEGSHIFT);
+		if (tripwire)
+		{
+			lightnum = LIGHTLEVELS - 1; // tripwires are full bright
+		}
 		else
-			lightnum = LIGHTLEVELS - 1;
+		{
+			if ((R_CheckColumnFunc(COLDRAWFUNC_FUZZY) == false)
+				|| (frontsector->extra_colormap && (frontsector->extra_colormap->flags & CMF_FOG)))
+			{
+				lightnum = (frontsector->lightlevel >> LIGHTSEGSHIFT);
+			}
+			else
+			{
+				lightnum = LIGHTLEVELS - 1;
 
-		if ((R_CheckColumnFunc(COLDRAWFUNC_FOG) == true)
-			|| (frontsector->extra_colormap && (frontsector->extra_colormap->flags & CMF_FOG)))
-			;
-		else if (P_ApplyLightOffset(lightnum))
-			lightnum += curline->lightOffset;
+				if (P_ApplyLightOffset(lightnum))
+				{
+					lightnum += curline->lightOffset;
+				}
+			}
+		}
 
 		if (lightnum < 0)
 			walllights = scalelight[0];