From 27255fbb4a1185aa369e1f2762a8cc5012cd4d58 Mon Sep 17 00:00:00 2001
From: Andrzej Kapolka <drzej.k@gmail.com>
Date: Sun, 18 Jan 2015 01:04:45 -0800
Subject: [PATCH] Hermite display fix.

---
 interface/src/MetavoxelSystem.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/interface/src/MetavoxelSystem.cpp b/interface/src/MetavoxelSystem.cpp
index 06dc983b96..57a3730f0c 100644
--- a/interface/src/MetavoxelSystem.cpp
+++ b/interface/src/MetavoxelSystem.cpp
@@ -1817,7 +1817,7 @@ void HeightfieldNodeRenderer::render(const HeightfieldNodePointer& node, const g
                     }
                     for (int y = position, end = position + count; y < end; y++) {
                         const StackArray::Entry& entry = lineSrc->getEntry(y, heightfieldHeight);
-                        if (displayHermite && x != 0 && z != 0) {
+                        if (displayHermite && x != 0 && z != 0 && !lineSrc->isEmpty() && y >= lineSrc->getPosition()) {
                             glm::vec3 normal;
                             if (entry.hermiteX != 0) {
                                 glm::vec3 start = glm::vec3(clampedX + entry.getHermiteX(normal), y, clampedZ) * step;