File melonds_PR1820.patch of Package melonds

diff --git a/src/GPU3D.cpp b/src/GPU3D.cpp
index 57f20c1..e20db99 100644
--- a/src/GPU3D.cpp
+++ b/src/GPU3D.cpp
@@ -1084,7 +1084,7 @@ void SubmitPolygon()
 
     bool facingview = (dot <= 0);
 
-    if (facingview)
+    if (dot < 0)
     {
         if (!(CurPolygonAttr & (1<<7)))
         {