diff --git a/src/main.cpp b/src/main.cpp
index e915f96..6f66b8b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -152,27 +152,33 @@ constexpr std::tuple<double, double, double, double> marching_squares_lookup(int
 {
     switch (mcase) {
         case 1:
-        case 14:
             return {0, 0.5, 0.5, 0};
+        case 14:
+            return {0.5, 0, 0, 0.5};
         case 2: 
             return {0.5, 0, 1, 0.5};
-        case 3: 
-        case 12:
+        case 13:
+            return {1, 0.5, 0.5, 0};
+        case 3:
             return {0, 0.5, 1, 0.5};
-        case 4: 
-        case 11:
+        case 12:
+            return {1, 0.5, 0, 0.5};
+        case 4:
             return {0.5, 1, 1, 0.5};
+        case 11:
+            return {1, 0.5, 0.5, 1};
         case 5: 
         case 10:
             return {0, 0, 0, 0}; //FIXME
         case 6: 
-        case 9:
             return {0.5, 1, 0.5, 0};
+        case 9:
+            return {0.5, 0, 0.5, 1};
         case 7: 
-        case 8:
             return {0, 0.5, 0.5, 1};
-        case 13:
-            return {1, 0.5, 0.5, 0};
+        case 8:
+            return {0.5, 0.5, 0, 0.5};
+
         
     };
 }