small subdiv changes

QTProject/subdivision.cpp

@@ -420,10 +420,12 @@ QVector<unsigned int> Subdivision::getPatchIndexBuffer(QVector<unsigned int> ib_
     totalTimer.start();
     qCDebug(log_timing)<<"PatchIndexBuffer started";
     QVector<unsigned int> pib;
+    if (ib_regular.size() == 0) return pib;
     QVector<unsigned int> ib_combined = ib_regular + ib_irregular; //DO NOT swap regular and irregular! iteration over ib_combined starting from index in ib_regular
     QMap<Triangle,QVector<Triangle>> adj;
+   // qDebug()<<"combined lenght"<<ib_combined.length();
     for (int i = 0; i < ib_combined.length() - 2; i+=3){
-
+     //   qDebug()<<"Index"<<i;
         unsigned int i3,i6,i7;
 
         //alles gegen den uzs
@@ -431,6 +433,7 @@ QVector<unsigned int> Subdivision::getPatchIndexBuffer(QVector<unsigned int> ib_
         i6 = ib_combined[i+1];
         i7 = ib_combined[i+2];
 
+
         if(log_subdiv_trace().isDebugEnabled()){
             if (i < ib_regular.length()){
                 Vertex v3 = vb[i3];
@@ -469,13 +472,14 @@ QVector<unsigned int> Subdivision::getPatchIndexBuffer(QVector<unsigned int> ib_
                 neighbors.push_back(t367);
                 adj.insert(tj,neighbors);
                 neighbors = adj.value(t367,QVector<Triangle>());
+                if (neighbors.length() == 3) break;
                 neighbors.push_back(tj);
                 adj.insert(t367,neighbors);
             }
         }
 
         if (adj.value(t367,QVector<Triangle>()).size() != 3){
-            qCDebug(log_subdiv)<<"no 3 adjacent triangles found";
+            qCDebug(log_subdiv_trace)<<"no 3 adjacent triangles found";
         }
     }