From 7c966572f134436632e7b9f50d269e7c78fca82f Mon Sep 17 00:00:00 2001
From: "bre..om" <brentowens@gmail.com>
Date: Sat, 4 May 2013 00:33:46 +0000
Subject: [PATCH] add check in lod control for camera existence when it can be
 empty in the sdk

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10591 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
---
 .../jme3/terrain/geomipmap/lodcalc/DistanceLodCalculator.java   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/engine/src/terrain/com/jme3/terrain/geomipmap/lodcalc/DistanceLodCalculator.java b/engine/src/terrain/com/jme3/terrain/geomipmap/lodcalc/DistanceLodCalculator.java
index b859861a4..e60d80b56 100644
--- a/engine/src/terrain/com/jme3/terrain/geomipmap/lodcalc/DistanceLodCalculator.java
+++ b/engine/src/terrain/com/jme3/terrain/geomipmap/lodcalc/DistanceLodCalculator.java
@@ -63,6 +63,8 @@ public class DistanceLodCalculator implements LodCalculator {
     }
     
     public boolean calculateLod(TerrainPatch terrainPatch, List<Vector3f> locations, HashMap<String, UpdatedTerrainPatch> updates) {
+        if (locations == null || locations.isEmpty())
+            return false;// no camera yet
         float distance = getCenterLocation(terrainPatch).distance(locations.get(0));
 
         if (turnOffLod) {