diff --git a/src/windmill_draw.cpp b/src/windmill_draw.cpp
index 83a8ba3..13a55d8 100644
--- a/src/windmill_draw.cpp
+++ b/src/windmill_draw.cpp
@@ -55,7 +55,7 @@ void Windmill::draw()
 	draw_objects();
 
 	// post traitement pour afficher les angles vifs
-//	draw_post_treatment();
+	draw_post_treatment();
 
 	// affiche le corps du personnage
 	//draw_body();
@@ -212,20 +212,18 @@ void Windmill::draw_post_treatment()
 				if (right < MAX_DEPTH_Z_BUFFER)
 				{
 					mask = 128 >> ((x+1) & 7);
-					vram[address>>3] |= mask; // FIXME: Wrong VRAM offset if viewport isn't (0,0)
-
-					//ML_pixel(x+1, y, ML_BLACK);
+					vram[(y << 4) + ((x+1) >> 3)] |= mask;
 				}
 				if (bottom < MAX_DEPTH_Z_BUFFER)
 				{
-					dpixel(x, y+1, C_BLACK);
-					//ML_pixel(x, y+1, ML_BLACK);
+					mask = 128 >> (x & 7);
+					vram[(y << 4) + (x >> 3) + 16] |= mask;
 				}
 			} else {
 				if (right == MAX_DEPTH_Z_BUFFER or bottom == MAX_DEPTH_Z_BUFFER)
 				{
-					dpixel(x, y+1, C_BLACK);
-					//ML_pixel(x, y, ML_BLACK);
+					mask = 128 >> (x & 7);
+					vram[(y << 4) + (x >> 3) + 16] |= mask;
 				}
 			}
 		}