fix for many empty paths

pgrit · Aug 8, 2024 · 1264caa · 1264caa
1 parent 6834ea1
commit 1264caa
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/SeeSharp/Integrators/Common/PathCache.cs b/SeeSharp/Integrators/Common/PathCache.cs
@@ -32,7 +32,10 @@ public ref PathVertex GetVertex(int globalVertexIdx) {
             int offset = globalVertexIdx - (idx == 0 ? 0 : cumPathLen[idx - 1]);
             vertexMemoryIdx = pathIndices[idx] + offset;
         } else {
-            vertexMemoryIdx = pathIndices[idx + 1];
+            // Skip empty paths in-between
+            do idx++;
+            while (pathIndices[idx] == -1);
+            vertexMemoryIdx = pathIndices[idx];
         }
         return ref memory[vertexMemoryIdx];
     }