diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index a2d02c3f9..eff303acb 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -153,7 +153,7 @@ inline bool IsFogBoundary (sector_t *front, sector_t *back)
 float *MaskedSWall;
 float MaskedScaleY;
 
-static void BlastMaskedColumn (FTexture *tex, bool useRt)
+static void BlastMaskedColumn (FTexture *tex)
 {
 	// calculate lighting
 	if (fixedcolormap == NULL && fixedlightlev < 0)
@@ -176,7 +176,7 @@ static void BlastMaskedColumn (FTexture *tex, bool useRt)
 	// when forming multipatched textures (see r_data.c).
 
 	// draw the texture
-	R_DrawMaskedColumn(tex, maskedtexturecol[dc_x], useRt);
+	R_DrawMaskedColumn(tex, maskedtexturecol[dc_x]);
 	rw_light += rw_lightstep;
 	spryscale += rw_scalestep;
 }
@@ -415,7 +415,7 @@ void R_RenderMaskedSegRange (drawseg_t *ds, int x1, int x2)
 		{
 			for (dc_x = x1; dc_x < x2; ++dc_x)
 			{
-				BlastMaskedColumn (tex, false);
+				BlastMaskedColumn (tex);
 			}
 		}
 	}
@@ -2309,7 +2309,7 @@ static void R_RenderDecal (side_t *wall, DBaseDecal *decal, drawseg_t *clipper,
 				{ // calculate lighting
 					R_SetColorMapLight(usecolormap, rw_light, wallshade);
 				}
-				R_WallSpriteColumn (false);
+				R_WallSpriteColumn ();
 				dc_x++;
 			}
 		}
diff --git a/src/r_things.cpp b/src/r_things.cpp
index 7b945a44c..0e1fbef56 100644
--- a/src/r_things.cpp
+++ b/src/r_things.cpp
@@ -258,7 +258,7 @@ double	 		sprtopscreen;
 
 bool			sprflipvert;
 
-void R_DrawMaskedColumnBgra(FTexture *tex, fixed_t col, bool useRt, bool unmasked)
+void R_DrawMaskedColumnBgra(FTexture *tex, fixed_t col, bool unmasked)
 {
 	fixed_t saved_iscale = dc_iscale; // Save this because we need to modify it for mipmaps
 
@@ -374,12 +374,12 @@ void R_DrawMaskedColumnBgra(FTexture *tex, fixed_t col, bool useRt, bool unmaske
 	dc_iscale = saved_iscale;
 }
 
-void R_DrawMaskedColumn (FTexture *tex, fixed_t col, bool useRt, bool unmasked)
+void R_DrawMaskedColumn (FTexture *tex, fixed_t col, bool unmasked)
 {
 	// Handle the linear filtered version in a different function to reduce chances of merge conflicts from zdoom.
-	if (r_swtruecolor && !drawer_needs_pal_input && !useRt) // To do: add support to R_DrawColumnHoriz_rgba
+	if (r_swtruecolor && !drawer_needs_pal_input) // To do: add support to R_DrawColumnHoriz_rgba
 	{
-		R_DrawMaskedColumnBgra(tex, col, useRt, unmasked);
+		R_DrawMaskedColumnBgra(tex, col, unmasked);
 		return;
 	}
 
@@ -669,14 +669,14 @@ void R_DrawWallSprite(vissprite_t *spr)
 				R_SetColorMapLight(usecolormap, rw_light, shade);
 			}
 			if (!R_ClipSpriteColumnWithPortals(spr))
-				R_WallSpriteColumn(false);
+				R_WallSpriteColumn();
 			dc_x++;
 		}
 	}
 	R_FinishSetPatchStyle();
 }
 
-void R_WallSpriteColumn (bool useRt)
+void R_WallSpriteColumn ()
 {
 	float iscale = swall[dc_x] * MaskedScaleY;
 	dc_iscale = FLOAT2FIXED(iscale);
@@ -687,7 +687,7 @@ void R_WallSpriteColumn (bool useRt)
 		sprtopscreen = CenterY - dc_texturemid * spryscale;
 
 	dc_texturefrac = 0;
-	R_DrawMaskedColumn(WallSpriteTile, lwall[dc_x], useRt);
+	R_DrawMaskedColumn(WallSpriteTile, lwall[dc_x]);
 	rw_light += rw_lightstep;
 }
 
diff --git a/src/r_things.h b/src/r_things.h
index 657be32c5..ac8345c70 100644
--- a/src/r_things.h
+++ b/src/r_things.h
@@ -129,8 +129,8 @@ extern double			pspriteyscale;
 extern FTexture			*WallSpriteTile;
 
 
-void R_DrawMaskedColumn (FTexture *texture, fixed_t column, bool useRt, bool unmasked = false);
-void R_WallSpriteColumn (bool useRt);
+void R_DrawMaskedColumn (FTexture *texture, fixed_t column, bool unmasked = false);
+void R_WallSpriteColumn ();
 
 void R_CacheSprite (spritedef_t *sprite);
 void R_SortVisSprites (int (*compare)(const void *, const void *), size_t first);
diff --git a/src/v_draw.cpp b/src/v_draw.cpp
index df5dd5cf0..1b23d5566 100644
--- a/src/v_draw.cpp
+++ b/src/v_draw.cpp
@@ -281,7 +281,7 @@ void DCanvas::DrawTextureParms(FTexture *img, DrawParms &parms)
 
 		while (dc_x < x2_i)
 		{
-			R_DrawMaskedColumn(img, frac, false, !parms.masked);
+			R_DrawMaskedColumn(img, frac, !parms.masked);
 			dc_x++;
 			frac += xiscale_i;
 		}