[SOLVED] Runtime Error with Tutorials

Hi all, I'm working with this tutorial: http://www.ogre3d.org/wiki/index.php/NxOgre_Tutorial_Simple_Sample

Everything works in debug, and compiles in release, but when I start the app, I get an assertion error. It says "Expression: ms_Singleton".

Any ideas what may be the culprit?

Also, I'm very new (few weeks) to C++, I'm assuming that running the app in release will improve speed. Is that correct? I'm currently only getting 4 FPS on a simulation with 1000 cubes in a cube-grid pattern.

EDIT: The source of the error is ogreroot.cpp

EDIT 2: Turns out I forgot to change plugins.cfg to release

I believe that's usually something related to Root being used before it's created, but I don't know why it'd work in debug, but not release.

Yes, release should be at a good FPS. I get 6-12 in debug on my game, and I can get 200+ in release. Debug causes a LOT of extra physics overhead.





EDIT: make sure you remove or comment out
mNxScene->createActor(new Terrain(
which exists at the bottom of the tutorial. I don't know why he stopped at that point. I've commented it out on the wiki.

I believe that's usually something related to Root being used before it's created, but I don't know why it'd work in debug, but not release.


I'm using the example framework, so Root is create automatically.


Yes, release should be at a good FPS. I get 6-12 in debug on my game, and I can get 200+ in release. Debug causes a LOT of extra physics overhead.


Thanks . I thought I had read that somewhere but wasn't sure.


EDIT: make sure you remove or comment out
mNxScene->createActor(new Terrain(
which exists at the bottom of the tutorial. I don't know why he stopped at that point. I've commented it out on the wiki.
Yup, I did that. Although it wouldn't compile if I hadn't removed that line.
Thanks for the reply, but the problem persists. Any other ideas?

I think I've located the problem. I used the VC++ debugger to check how far the app gets before crashing. Turns out it never makes it past this line:

mRoot = new Ogre::Root(pluginsPath,
mResourcePath + "ogre.cfg", mResourcePath + "Ogre.log");


I checked the values of pluginsPath and mResourcePath at runtime.
In debug mode:
pluginsPath = "plugins.cfg"
mResourcePath = ""

However, in release mode, mResourcePath is filled with garbage. So, I thought to myself "well, that's an easy fix", and added this line:


mResourcePath = "";


Which seems easy enough. Nope. As soon as that line is finished, the value is back to garbage.

At least I've narrowed down the issue now.

Looked into it more, apparently none of the apps I've made using ExampleApplication work properly in release.

Does anyone have any ideas at all?

I believe that's usually something related to Root being used before it's created, but I don't know why it'd work in debug, but not release.

Sorry, I was tired when I wrote this so it wasn't very clear. The 'but' meant it couldn't really be the problem because in debug it was running just fine.

Glad your prob got fixed.