Ogre3d restoreConfig causes app to hang on Ubuntu

Question

Building an app for Ubuntu using Ogre3D, CEGUI, OIS which is now all compiling and running as expected. Having got the basic app running I decided to now build a custom config file which I can store both graphics settings (ie. resolution, fullscreen, etc) as well as other configurable settings I will need in the app down the track.

As a starting point I changed from calling mRoot->showConfigDialog() at each startup to :

if(!mRoot->restoreConfig())
    mRoot->showConfigDialog();

this was meant to restore the config from the 'ogre.cfg' file which exists and so it did, but got to loading a skybox texture on the first scene create and just sat there doing nothing.

Since that wasn't what I wanted anyway I tried setting things up manually like :

RenderSystem *rs = mRoot->getRenderSystemByName("OpenGL Rendering Subsystem");
mRoot->setRenderSystem(rs);
rs->setConfigOption("Full Screen","No");
rs->setConfigOption("Video Mode","1024 x 768");

Those matched the settings from 'ogre.cfg' that I was using prior from the showConfigDialog() function. I got the same issue with this manual configuration however, while loading the skybox textures it just stops.

I can't work out why these changes have any bearing at all on how the app runs and since OIS grabs the input and locks the mouse to the screen I am having trouble trying to debug it with gdb.

Answer 1

Regarding the mouse locking, you can run gdb on another display. It can either be a display on the same computer (including options like Xephyr that create virtual displays nested in the current display, or just a second session on a different display - if you have a working .xinitrc running two or three X sessions at a time is simple), or it can be on another machine on your network (ie. via ssh -X).