diff --git a/libraries/metavoxels/src/MetavoxelMessages.cpp b/libraries/metavoxels/src/MetavoxelMessages.cpp
index 59b643a249..1f6c356a38 100644
--- a/libraries/metavoxels/src/MetavoxelMessages.cpp
+++ b/libraries/metavoxels/src/MetavoxelMessages.cpp
@@ -136,23 +136,14 @@ int UpdateSpannerVisitor::visit(MetavoxelInfo& info) {
     for (int i = 0; i < _steps && parentInfo; i++) {
         parentInfo = parentInfo->parentInfo;
     }
-    if (!parentInfo) {
-        for (int i = 0; i < _outputs.size(); i++) {
-            info.outputValues[i] = AttributeValue(_outputs.at(i));
-        }
-        return (info.size > _voxelizationSize) ? DEFAULT_ORDER : STOP_RECURSION;
+    for (int i = 0; i < _outputs.size(); i++) {
+        info.outputValues[i] = AttributeValue(_outputs.at(i));
     }
-    SharedObjectSet objects = parentInfo->inputValues.at(_outputs.size()).getInlineValue<SharedObjectSet>();
-    if (objects.isEmpty()) {
-        for (int i = 0; i < _outputs.size(); i++) {
-            info.outputValues[i] = AttributeValue(_outputs.at(i));
+    if (parentInfo) {
+        foreach (const SharedObjectPointer& object,
+                parentInfo->inputValues.at(_outputs.size()).getInlineValue<SharedObjectSet>()) {
+            static_cast<const Spanner*>(object.data())->blendAttributeValues(info, true);
         }
-        return (info.size > _voxelizationSize) ? DEFAULT_ORDER : STOP_RECURSION;
-    }
-    SharedObjectSet::const_iterator it = objects.constBegin();
-    static_cast<const Spanner*>(it->data())->getAttributeValues(info, true);
-    for (it++; it != objects.constEnd(); it++) {
-        static_cast<const Spanner*>(it->data())->blendAttributeValues(info, true);
     }
     return (info.size > _voxelizationSize) ? DEFAULT_ORDER : STOP_RECURSION;
 }
diff --git a/libraries/metavoxels/src/MetavoxelUtil.cpp b/libraries/metavoxels/src/MetavoxelUtil.cpp
index 7993b3bcb6..7995809f1c 100644
--- a/libraries/metavoxels/src/MetavoxelUtil.cpp
+++ b/libraries/metavoxels/src/MetavoxelUtil.cpp
@@ -299,6 +299,11 @@ Box operator*(const glm::mat4& matrix, const Box& box) {
     return newBox;
 }
 
+QDebug& operator<<(QDebug& out, const Box& box) {
+    return out << '(' << box.minimum.x << box.minimum.y << box.minimum.z << ") (" <<
+        box.maximum.x << box.maximum.y << box.maximum.z << ')';
+}
+
 QMetaObjectEditor::QMetaObjectEditor(QWidget* parent) : QWidget(parent) {
     QVBoxLayout* layout = new QVBoxLayout();
     layout->setContentsMargins(QMargins());
diff --git a/libraries/metavoxels/src/MetavoxelUtil.h b/libraries/metavoxels/src/MetavoxelUtil.h
index 3f450212b1..9972981bc7 100644
--- a/libraries/metavoxels/src/MetavoxelUtil.h
+++ b/libraries/metavoxels/src/MetavoxelUtil.h
@@ -60,6 +60,8 @@ DECLARE_STREAMABLE_METATYPE(Box)
 
 Box operator*(const glm::mat4& matrix, const Box& box);
 
+QDebug& operator<<(QDebug& out, const Box& box);
+
 /// Editor for meta-object values.
 class QMetaObjectEditor : public QWidget {
     Q_OBJECT