diff --git a/src/swrenderer/scene/r_things.cpp b/src/swrenderer/scene/r_things.cpp
index 4f2da52f3..569e9be10 100644
--- a/src/swrenderer/scene/r_things.cpp
+++ b/src/swrenderer/scene/r_things.cpp
@@ -77,7 +77,6 @@ CVAR(Bool, r_splitsprites, true, CVAR_ARCHIVE)
 
 namespace swrenderer
 {
-	using namespace drawerargs;
 
 bool			DrewAVoxel;
 
@@ -144,7 +143,7 @@ static inline void R_CollectPortals()
 	}
 }
 
-bool R_ClipSpriteColumnWithPortals(vissprite_t* spr)
+bool R_ClipSpriteColumnWithPortals(int x, vissprite_t* spr)
 {
 	RenderPortal *renderportal = RenderPortal::Instance();
 	
@@ -165,7 +164,7 @@ bool R_ClipSpriteColumnWithPortals(vissprite_t* spr)
 			continue;
 
 		// now if current column is covered by this drawseg, we clip it away
-		if ((dc_x >= seg->x1) && (dc_x < seg->x2))
+		if ((x >= seg->x1) && (x < seg->x2))
 			return true;
 	}
 
diff --git a/src/swrenderer/scene/r_things.h b/src/swrenderer/scene/r_things.h
index 6db9f3f4e..04685d8bb 100644
--- a/src/swrenderer/scene/r_things.h
+++ b/src/swrenderer/scene/r_things.h
@@ -38,7 +38,7 @@ EXTERN_CVAR(Bool, r_fullbrightignoresectorcolor);
 namespace swrenderer
 {
 
-bool R_ClipSpriteColumnWithPortals(vissprite_t* spr);
+bool R_ClipSpriteColumnWithPortals(int x, vissprite_t* spr);
 
 
 void R_CacheSprite (spritedef_t *sprite);
diff --git a/src/swrenderer/things/r_particle.cpp b/src/swrenderer/things/r_particle.cpp
index c6dd2d5df..4daf1d799 100644
--- a/src/swrenderer/things/r_particle.cpp
+++ b/src/swrenderer/things/r_particle.cpp
@@ -252,8 +252,7 @@ namespace swrenderer
 		{
 			for (int x = x1; x < (x1 + countbase); x++, fracposx += fracstepx)
 			{
-				dc_x = x;
-				if (R_ClipSpriteColumnWithPortals(vis))
+				if (R_ClipSpriteColumnWithPortals(x, vis))
 					continue;
 				uint32_t *dest = ylookup[yl] + x + (uint32_t*)dc_destorg;
 				DrawerCommandQueue::QueueCommand<DrawParticleColumnRGBACommand>(dest, yl, spacing, ycount, fg, alpha, fracposx);
@@ -263,8 +262,7 @@ namespace swrenderer
 		{
 			for (int x = x1; x < (x1 + countbase); x++, fracposx += fracstepx)
 			{
-				dc_x = x;
-				if (R_ClipSpriteColumnWithPortals(vis))
+				if (R_ClipSpriteColumnWithPortals(x, vis))
 					continue;
 				uint8_t *dest = ylookup[yl] + x + dc_destorg;
 				DrawerCommandQueue::QueueCommand<DrawParticleColumnPalCommand>(dest, yl, spacing, ycount, fg, alpha, fracposx);
diff --git a/src/swrenderer/things/r_sprite.cpp b/src/swrenderer/things/r_sprite.cpp
index 0a87d45e4..c998b3575 100644
--- a/src/swrenderer/things/r_sprite.cpp
+++ b/src/swrenderer/things/r_sprite.cpp
@@ -116,7 +116,7 @@ namespace swrenderer
 			{
 				while (x < x2)
 				{
-					if (ispsprite || !R_ClipSpriteColumnWithPortals(vis))
+					if (ispsprite || !R_ClipSpriteColumnWithPortals(x, vis))
 						R_DrawMaskedColumn(x, iscale, tex, frac, spryscale, sprtopscreen, sprflipvert, mfloorclip, mceilingclip, false);
 					x++;
 					frac += xiscale;
diff --git a/src/swrenderer/things/r_wallsprite.cpp b/src/swrenderer/things/r_wallsprite.cpp
index fe1aabb64..d3ba5fee9 100644
--- a/src/swrenderer/things/r_wallsprite.cpp
+++ b/src/swrenderer/things/r_wallsprite.cpp
@@ -221,7 +221,7 @@ namespace swrenderer
 				{ // calculate lighting
 					R_SetColorMapLight(usecolormap, light, shade);
 				}
-				if (!R_ClipSpriteColumnWithPortals(spr))
+				if (!R_ClipSpriteColumnWithPortals(x, spr))
 					R_WallSpriteColumn(x, WallSpriteTile, maskedScaleY, sprflipvert, mfloorclip, mceilingclip);
 				light += lightstep;
 				x++;