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
2013-05-04 00:33:46 +00:00 · 2013-05-04 00:33:46 +00:00 · 7c966572f1
commit 7c966572f1
parent f553d6a39a
1 changed files with 2 additions and 0 deletions
--- 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) {