diff --git a/algoim/organizer/blobtree.hpp b/algoim/organizer/blobtree.hpp
index daab9a0..822fbf5 100644
--- a/algoim/organizer/blobtree.hpp
+++ b/algoim/organizer/blobtree.hpp
@@ -25,8 +25,9 @@ bool isLeft(Blob b) { return b.isLeft == 1; }
 class BlobTree
 {
 public:
-    std::vector<Blob>         structure;
-    std::vector<unsigned int> primtiveNodeIdx;
+    std::vector<Blob> structure;
+
+    std::vector<unsigned int> primitiveNodeIdx; // 由primitive数组下标指向node中对应leaf的下标
 
     BlobTree() {}
 };
@@ -83,14 +84,17 @@ void propagate(BlobTree& tree, unsigned int nodeIdx, bool in)
     return;
 }
 
-// 这里传入的是拷贝，因为要修改，但不同traversal的修改不相互影响
+// 这里传入的BlobTree是拷贝，因为要修改且不同traversal的修改不相互影响
 // TODO: 最好优化掉拷贝
-// TODO: std::vector<bool> 可以改成bitset之类
-bool traverse(BlobTree tree, std::vector<int> possiblePrimtivies, const std::vector<bool>& primitiveInout)
+// TODO: std::vector<bool> 可以改成bitset之TT
+/**
+ * relatedPrimitives 是当次traversal需要care的primitives的索引，例如OcTree子问题中管理的Primitive
+ */
+bool traverse(BlobTree tree, const std::vector<int>& relatedPrimitives, const std::vector<bool>& primitiveInout)
 {
-    assert(possiblePrimtivies.size() == tree.primtiveNodeIdx.size());
-    for (int nodeIdx : tree.primtiveNodeIdx) {
-        propagate(tree, nodeIdx, primitiveInout[]);
+    assert(relatedPrimitives.size() == primitiveInout.size());
+    for (int primitiveIdx : relatedPrimitives) {
+        propagate(tree, tree.primitiveNodeIdx[primitiveIdx], primitiveInout[primitiveIdx]);
         if (tree.structure.back().inOut != 0) { return tree.structure.back().inOut == 1; }
     }
     std::cerr << "should not be here" << std::endl;
diff --git a/algoim/organizer/organizer.hpp b/algoim/organizer/organizer.hpp
index 34803b4..1b6bc31 100644
--- a/algoim/organizer/organizer.hpp
+++ b/algoim/organizer/organizer.hpp
@@ -265,8 +265,9 @@ std::array<int, 2> sides = {-1, 1};
 // 对于mark含2个及以上0的情况，尝试对每个0填1或-1的所有组合
 // TODO: 参数太多了，考虑换用std::function + lambda
 void visitSubcellOnBothSidesOfDir(const uvector3& nodeMid,
-                                  const int       polyIntersectIndex,
-                                  const tensor3&  poly,
+                                  ,
+                                  const int      polyIntersectIndex,
+                                  const tensor3& poly,
 
                                   std::array<Node, CHILD_NUM>& subNodes,
                                   int                          startIdxToCheck,