lazy load stars file only if stars render enabled

interface/src/Application.cpp

@@ -1654,8 +1654,6 @@ void Application::init() {
     _headMouseX = _mouseX = _glWidget->width() / 2;
     _headMouseY = _mouseY = _glWidget->height() / 2;
 
-    _stars.readInput(STAR_FILE, STAR_CACHE_FILE, 0);
-  
     _myAvatar.init();
     _myAvatar.setPosition(START_LOCATION);
     _myCamera.setMode(CAMERA_MODE_FIRST_PERSON);
@@ -1681,7 +1679,6 @@ void Application::init() {
     
     printLog("Loaded settings.\n");
 
-    
     sendAvatarVoxelURLMessage(_myAvatar.getVoxels()->getVoxelURL());
 }
 
@@ -2238,6 +2235,9 @@ void Application::displaySide(Camera& whichCamera) {
     glMateriali(GL_FRONT, GL_SHININESS, 96);
     
     if (_renderStarsOn->isChecked()) {
+        if (!_stars.getFileLoaded()) {
+            _stars.readInput(STAR_FILE, STAR_CACHE_FILE, 0);
+        }
         // should be the first rendering pass - w/o depth buffer / lighting
 
         // compute starfield alpha based on distance from atmosphere

interface/src/Stars.cpp

@@ -14,7 +14,7 @@
 #undef __interface__Starfield_impl__
 
 Stars::Stars() : 
-    _controller(0l) { 
+    _controller(0l), _fileLoaded(false) { 
     _controller = new starfield::Controller; 
 }
 
@@ -23,7 +23,8 @@ Stars::~Stars() {
 }
 
 bool Stars::readInput(const char* url, const char* cacheFile, unsigned limit) {
-    return _controller->readInput(url, cacheFile, limit); 
+    _fileLoaded = _controller->readInput(url, cacheFile, limit); 
+    return _fileLoaded;
 }
 
 bool Stars::setResolution(unsigned k) { 

interface/src/Stars.h

@@ -65,6 +65,7 @@ class Stars  {
         float changeLOD(float factor,
                         float overalloc = 0.25, float realloc = 0.15);
 
+        bool getFileLoaded() const { return _fileLoaded; };
     private:
         // don't copy/assign
         Stars(Stars const&); // = delete;
@@ -73,6 +74,8 @@ class Stars  {
         // variables
 
         starfield::Controller* _controller;
+        
+        bool _fileLoaded;
 };