Problem with decals

mDecalQueue.clear();
for ( U32 i = 0; i < grid.size(); i++ )
{
   DecalSphere* decalSphere = grid[i];
   const SphereF& worldSphere = decalSphere->mWorldSphere;

   // See if this decal sphere can be culled.

   const SceneCullingState& cullingState = state->getCullingState();
   if( haveOnlyOutdoorZone )
   {
      U32 outdoorZone = SceneZoneSpaceManager::RootZoneId;
      if( cullingState.isCulled( worldSphere, &outdoorZone, 1 ) )
         continue;
   }
   else
   {
      // Update the zoning state of the sphere, if we need to.

      if( decalSphere->mZones.size() == 0 )
         decalSphere->updateZoning( zoneManager );

      // Skip the sphere if it is not visible in any of its zones.

      if( cullingState.isCulled( worldSphere, decalSphere->mZones.address(), decalSphere->mZones.size() ) )
         continue;
   }  

   // TODO: If each sphere stored its largest decal instance we
   // could do an LOD step on it here and skip adding any of the
   // decals in the sphere.

   mDecalQueue.merge( decalSphere->mItems );
}