initialize resources only after the RTShaderSystem has been started

Author: simonschmeisser

src/rviz/ogre_helpers/render_system.cpp

@@ -115,7 +115,6 @@ RenderSystem::RenderSystem() : ogre_overlay_system_(nullptr), stereo_supported_(
   makeRenderWindow(dummy_window_id_, 1, 1);
   detectGlVersion();
   setupResources();
-  Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
 }
 
 void RenderSystem::prepareOverlays(Ogre::SceneManager* scene_manager)
@@ -124,6 +123,11 @@ void RenderSystem::prepareOverlays(Ogre::SceneManager* scene_manager)
     scene_manager->addRenderQueueListener(ogre_overlay_system_);
 }
 
+void RenderSystem::initialiseResources()
+{
+  Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
+}
+
 void RenderSystem::setupDummyWindowId()
 {
 #if defined(Q_OS_MAC) || defined(Q_OS_WIN)

src/rviz/ogre_helpers/render_system.h

@@ -67,6 +67,8 @@ class RVIZ_EXPORT RenderSystem
   // Needed for Ogre >= 1.9 to use fonts; does nothing for prior versions.
   void prepareOverlays(Ogre::SceneManager* scene_manager);
 
+  void initialiseResources();
+
   // @brief return OpenGl Version as integer, e.g. 320 for OpenGl 3.20
   int getGlVersion()
   {

src/rviz/visualization_manager.cpp

@@ -161,6 +161,9 @@ VisualizationManager::VisualizationManager(RenderPanel* render_panel,
   Ogre::MaterialManager::getSingleton().addListener(private_->material_mgr_listener_);
   //}
 
+  // We need to wait with resource initialization till the RTShaderSystem is enabled
+  rviz::RenderSystem::RenderSystem::get()->initialiseResources();
+
   directional_light_ = scene_manager_->createLight("MainDirectional");
   directional_light_->setType(Ogre::Light::LT_DIRECTIONAL);
   directional_light_->setDirection(Ogre::Vector3(-1, 0, -1));