diff --git a/interface/src/MetavoxelSystem.cpp b/interface/src/MetavoxelSystem.cpp
index f3c3c94255..268f63e5c5 100644
--- a/interface/src/MetavoxelSystem.cpp
+++ b/interface/src/MetavoxelSystem.cpp
@@ -2241,7 +2241,7 @@ void HeightfieldNodeRenderer::render(const HeightfieldNodePointer& node, const g
                         // quads for each edge that includes a transition, using indices of previously generated vertices
                         int reclampedX = qMin(clampedX, stackWidth - 1);
                         int reclampedZ = qMin(clampedZ, stackHeight - 1);
-                        if (alpha0 != alpha1 && middleX) {
+                        if (alpha0 != alpha1 && y > position && z > 0) {
                             const NormalIndex& index1 = lastIndexY;
                             const NormalIndex& index2 = lastIndicesZ[x].get(y - 1);
                             const NormalIndex& index3 = lastIndicesZ[x].get(y);
@@ -2269,7 +2269,7 @@ void HeightfieldNodeRenderer::render(const HeightfieldNodePointer& node, const g
                             }
                         }
                         
-                        if (alpha0 != alpha2) {
+                        if (alpha0 != alpha2 && x > 0 && z > 0) {
                             const NormalIndex& index1 = lastIndicesZ[x].get(y);
                             const NormalIndex& index2 = lastIndicesZ[x - 1].get(y);
                             const NormalIndex& index3 = lastIndicesX.get(y);
@@ -2301,7 +2301,7 @@ void HeightfieldNodeRenderer::render(const HeightfieldNodePointer& node, const g
                             }
                         }
                         
-                        if (alpha0 != alpha4 && middleZ) {
+                        if (alpha0 != alpha4 && x > 0 && y > position) {
                             const NormalIndex& index1 = lastIndexY;
                             const NormalIndex& index2 = lastIndicesX.get(y - 1);
                             const NormalIndex& index3 = lastIndicesX.get(y);
diff --git a/interface/src/ui/MetavoxelEditor.cpp b/interface/src/ui/MetavoxelEditor.cpp
index 98ed64590e..bb05d054d8 100644
--- a/interface/src/ui/MetavoxelEditor.cpp
+++ b/interface/src/ui/MetavoxelEditor.cpp
@@ -97,7 +97,7 @@ MetavoxelEditor::MetavoxelEditor() :
     _gridSpacing->setMinimum(-FLT_MAX);
     _gridSpacing->setMaximum(FLT_MAX);
     _gridSpacing->setPrefix("2^");
-    _gridSpacing->setValue(-3.0);
+    _gridSpacing->setValue(0.0);
     connect(_gridSpacing, SIGNAL(valueChanged(double)), SLOT(alignGridPosition()));
 
     formLayout->addRow("Grid Position:", _gridPosition = new QDoubleSpinBox());