Test rundown part 1 :

- fixed NPE in FilterPostProcessor
- fixed compilation error in terrain lighting

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8028 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/post/FilterPostProcessor.java

@@ -290,10 +290,13 @@ public class FilterPostProcessor implements SceneProcessor, Savable {
             sceneBuffer = renderFrameBufferMS;
         }
         renderFilterChain(renderer, sceneBuffer);        
-        renderManager.setCamera(viewPort.getCamera(), false);
-
         renderer.setFrameBuffer(outputBuffer);
         
+        //viewport can be null if no filters are enabled
+        if (viewPort != null) {
+            renderManager.setCamera(viewPort.getCamera(), false);
+        }
+
     }
 
     public void preFrame(float tpf) {

engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.frag

@@ -658,7 +658,7 @@ void main(){
               spotFallOff = (curAngleCos - outerAngleCos) / innerMinusOuter;
 
               if(spotFallOff <= 0.0){
-                  gl_FragColor.rgb = AmbientSum * diffuseColor;
+                  gl_FragColor = AmbientSum * diffuseColor;
                   return;
               }else{
                   spotFallOff = clamp(spotFallOff, 0.0, 1.0);