diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 9bade3d6f..d187b0897 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -1434,34 +1434,10 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 
 			// set alpha for transparent walls
 			// ooops ! this do not work at all because render order we should render it in backtofront order
-			switch (gl_linedef->special)
-			{
-				//  Translucent
-				case 102:
-				case 121:
-				case 123:
-				case 124:
-				case 125:
-				case 141:
-				case 142:
-				case 144:
-				case 145:
-				case 174:
-				case 175:
-				case 192:
-				case 195:
-				case 221:
-				case 253:
-				case 256:
-					blendmode = PF_Translucent;
-					break;
-				default:
-					if (gl_linedef->alpha >= 0 && gl_linedef->alpha < FRACUNIT)
-						blendmode = HWR_TranstableToAlpha(R_GetLinedefTransTable(gl_linedef->alpha), &Surf);
-					else
-						blendmode = PF_Masked;
-					break;
-			}
+			if (gl_linedef->alpha >= 0 && gl_linedef->alpha < FRACUNIT)
+				blendmode = HWR_TranstableToAlpha(R_GetLinedefTransTable(gl_linedef->alpha), &Surf);
+			else
+				blendmode = PF_Masked;
 
 			if (gl_curline->polyseg && gl_curline->polyseg->translucency > 0)
 			{
diff --git a/src/p_setup.c b/src/p_setup.c
index 017a8e18b..26e092756 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -3620,10 +3620,10 @@ static void P_ConvertBinaryMap(void)
 
 			//Flags
 			if (lines[i].flags & ML_EFFECT1)
-				lines[i].args[2] = TMFL_NOBOSSES;
+				lines[i].args[2] |= TMFL_NOBOSSES;
 			//Replicate old hack: Translucent FOFs set to full opacity cut cyan pixels
 			if (lines[i].flags & ML_EFFECT6 || lines[i].args[1] == 256)
-				lines[i].args[2] = TMFL_SPLAT;
+				lines[i].args[2] |= TMFL_SPLAT;
 
 			break;
 		case 259: //Custom FOF