diff --git a/src/screen.c b/src/screen.c
index 08505606..56528a20 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -229,7 +229,7 @@ void SCR_Startup(void)
 	vid.fdupy = FixedDiv(vid.height*FRACUNIT, BASEVIDHEIGHT*FRACUNIT);
 
 #ifdef HWRENDER
-	if (rendermode != render_opengl && rendermode != render_none) // This was just placing it incorrectly at non aspect correct resolutions, not sure if it does anything in software
+	if (rendermode != render_opengl && rendermode != render_none) // This was just placing it incorrectly at non aspect correct resolutions in opengl
 #endif
 		vid.fdupx = vid.fdupy = (vid.fdupx < vid.fdupy ? vid.fdupx : vid.fdupy);
 
@@ -275,7 +275,7 @@ void SCR_Recalc(void)
 	vid.fdupy = FixedDiv(vid.height*FRACUNIT, BASEVIDHEIGHT*FRACUNIT);
 
 #ifdef HWRENDER
-	if (rendermode != render_opengl && rendermode != render_none) // This was just placing it incorrectly at non aspect correct resolutions, not sure if it does anything in software
+	if (rendermode != render_opengl && rendermode != render_none) // This was just placing it incorrectly at non aspect correct resolutions in opengl
 #endif
 		vid.fdupx = vid.fdupy = (vid.fdupx < vid.fdupy ? vid.fdupx : vid.fdupy);
 
diff --git a/src/v_video.c b/src/v_video.c
index 032a4ec9..9ba099f1 100644
--- a/src/v_video.c
+++ b/src/v_video.c
@@ -905,6 +905,14 @@ void V_DrawPatchFill(patch_t *pat)
 	INT32 dupz = (vid.dupx < vid.dupy ? vid.dupx : vid.dupy);
 	INT32 x, y, pw = SHORT(pat->width) * dupz, ph = SHORT(pat->height) * dupz;
 
+#ifdef HWRENDER
+	if (rendermode == render_opengl)
+	{
+		pw = FixedMul(SHORT(pat->width)*FRACUNIT, vid.fdupx)>>FRACBITS;
+		ph = FixedMul(SHORT(pat->height)*FRACUNIT, vid.fdupy)>>FRACBITS;
+	}
+#endif
+
 	for (x = 0; x < vid.width; x += pw)
 	{
 		for (y = 0; y < vid.height; y += ph)