commit fceaa11674ddee3f0528988de17b51932dcb8a28
Author: Leszek Koltunski <leszek@koltunski.pl>
Date:   Mon Jun 12 16:27:42 2023 +0200

    Progress with MeshMultigon. Still auto-computation of 'up' edges does not work.

diff --git a/src/main/java/org/distorted/library/mesh/MeshMultigon.java b/src/main/java/org/distorted/library/mesh/MeshMultigon.java
index f3feac1..af76035 100644
--- a/src/main/java/org/distorted/library/mesh/MeshMultigon.java
+++ b/src/main/java/org/distorted/library/mesh/MeshMultigon.java
@@ -90,7 +90,12 @@ public class MeshMultigon extends MeshBase
       {
       int len = vertices[i].length/2;
       up[i] = new boolean[len];
-      for(int j=0; j<len; j++) up[i][j] = isUp(v,i,j);
+      for(int j=0; j<len; j++)
+        {
+        up[i][j] = isUp(v,i,j);
+
+        android.util.Log.e("D", "polygon "+i+" edge "+j+" up: "+up[i][j]);
+        }
       }
 
     return up;