Need help with my first program

Hello.
I've a problem with my first program which I found on this site: http://www.ogre3d.org/wiki/index.php/First_steps_with_OgreODE

When I start it it says:
assertion "bNormalizationResult" failed in ...

I thought this error was shown because of this function:
mBody->setOrientation(Quaternion( Radian(5), Vector3(0,0,0) ));

Changing the value of the vector makes the program working but the box sticks to the ground.

Here is my Code:

#include "Wichtig.h"

OgreOde::World *mWorld;
OgreOde::Space *mSpace;
OgreOde::StepHandler *mStepper;

OgreOde::InfinitePlaneGeometry *mGround; //Das ist die Map

OgreOde::Body *mBody;
OgreOde::Geometry *mGeom;
OgreOde::BoxMass mMass;
Ogre::SceneNode *mNode;
Ogre::Entity *mEntity;

//========================================Eventlistener==========================================
class EventListener : public ExampleFrameListener
{
public:
EventListener(RenderWindow* win, Camera* cam, SceneManager* sm)
: ExampleFrameListener(win, cam, true, true)
{
mSceneMgr=sm;
}

bool frameStarted(const FrameEvent &evt)
{
mMouse->capture();
mKeyboard->capture();

if(mKeyboard->isKeyDown(OIS::KC_ESCAPE))
return false;

if(mKeyboard->isKeyDown(OIS::KC_UP))
{
mBody->addForce(Vector3(0,200,0));
}
if(mKeyboard->isKeyDown(OIS::KC_F1))
{
mBody->setPosition(Vector3(0,200,0));
}

Ogre::Real time = evt.timeSinceLastFrame;
if (mStepper->step(time))
{
mWorld->synchronise();
}


return true;
}

protected:
SceneManager *mSceneMgr; // The current SceneManager
SceneNode *mCamNode; // The SceneNode the camera is currently attached to
};
//========================================Eventlistener==========================================



//=======================================Hauptklasse=============================================
class Program : public ExampleApplication
{
protected:
public:
Program()
{

}

~Program()
{

}
protected:

virtual void createCamera(void)
{
mCamera = mSceneMgr->createCamera("PlayerCam");
mCamera->setPosition(Vector3(0,100,100));
mCamera->lookAt(Vector3(0,0,0));
mCamera->setNearClipDistance(5);
}

virtual void createViewports(void)
{
Viewport* vp = mWindow->addViewport(mCamera);
vp->setBackgroundColour(ColourValue(0,0,0));
mCamera->setAspectRatio(Real(vp->getActualWidth()) / Real(vp->getActualHeight()));
}

void createScene(void)
{
mSceneMgr->setAmbientLight(ColourValue(0.25, 0.25, 0.25));
mSceneMgr->setShadowTechnique(SHADOWTYPE_STENCIL_ADDITIVE);

Light *light = mSceneMgr->createLight("Light1");
light->setType(Light::LT_POINT);
light->setPosition(Vector3(0, 150, 250));
light->setDiffuseColour(0.5, 0.5, 0.5);
light->setSpecularColour(1.0, 1.0, 1.0);


mWorld = new OgreOde::World(mSceneMgr);
mWorld->setGravity(Ogre::Vector3(0,-9.80665,0));
mWorld->setCFM(10e-5);
mWorld->setERP(0.8);
mWorld->setAutoSleep(true);
mWorld->setAutoSleepAverageSamplesCount(10);
mWorld->setContactCorrectionVelocity(1.0);
mSpace = mWorld->getDefaultSpace();

const Ogre::Real _time_step = 0.5;
const Ogre::Real time_scale = Ogre::Real(1.7);
const Ogre::Real max_frame_time = Ogre::Real(1.0 / 4);
mStepper = new OgreOde::StepHandler(mWorld, OgreOde::StepHandler::QuickStep,_time_step, max_frame_time,time_scale);

mGround = new OgreOde::InfinitePlaneGeometry(Plane(Ogre::Vector3(0,1,0),0), mWorld, mWorld->getDefaultSpace());
// Use a load of meshes to represent the floor
int i = 0;
StaticGeometry* s;
s = mSceneMgr->createStaticGeometry("StaticFloor");
s->setRegionDimensions(Ogre::Vector3(160.0, 100.0, 160.0));
// Set the region origin so the center is at 0 world
s->setOrigin(Ogre::Vector3::ZERO);
for (Real z = -80.0;z <= 80.0;z += 20.0)
{
for (Real x = -80.0;x <= 80.0;x += 20.0)
{
String name = String("Ground") + StringConverter::toString(i++);
Entity* entity = mSceneMgr->createEntity(name, "plane.mesh");
entity->setQueryFlags (1<<4);
entity->setUserObject(mGround);
entity->setCastShadows(false);
s->addEntity(entity, Ogre::Vector3(x,0,z));
}
}
s->build();

mEntity = mSceneMgr->createEntity("crate","crate.mesh");
mEntity->setQueryFlags (1<<2);
mNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("crate");
mNode->attachObject(mEntity);
mEntity->setNormaliseNormals(true);
mEntity->setCastShadows(true);

mBody = new OgreOde::Body(mWorld);
mNode->attachObject(mBody);

Vector3 size(10.0,10.0,10.0);
OgreOde::BoxMass mMass(0.5,size);
mMass.setDensity(5.0,size);
mGeom = (OgreOde::Geometry*)new OgreOde::BoxGeometry(size, mWorld, mSpace);
mNode->setScale(size.x * 0.05,size.y * 0.05,size.z * 0.05);
mBody->setMass(mMass);
mGeom->setBody(mBody);
mEntity->setUserObject(mGeom);

mBody->setOrientation(Quaternion( Radian(5), Vector3(0,0,0) ));
mBody->setPosition(Vector3(0,220,-20));


}

void createFrameListener(void)
{
mFrameListener= new EventListener(mWindow, mCamera, mSceneMgr);
mFrameListener->showDebugOverlay(true);
mRoot->addFrameListener(mFrameListener);
}



};
//=======================================Hauptklasse=============================================














//=======================================Hauptfunktion===========================================
INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
{

Program app;

try {
app.go();
} catch(Ogre::Exception& e) {
#if OGRE_PLATFORM == PLATFORM_WIN32 || OGRE_PLATFORM == OGRE_PLATFORM_WIN32
MessageBox(NULL, (LPCTSTR) e.getFullDescription().c_str(), (LPCTSTR) "An exception has occurred!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
#else
fprintf(stderr, "An exception has occurred: %s\n",
e.getFullDescription().c_str());
#endif
}


return 0;
}
//=======================================Hauptfunktion===========================================



What's wrong?

Plz I need help.

Florian from Germany

I ahve no idea what could be wrong. Have you tried the sample programs?

not yet.
I'll try to compile them.

However, the same warning was shown by this (http://tuan.kuranes.free.fr/OgreOde_Demo_Setup.exe) example program.

I think this is a general problem isn't it?

Florian

I don't remember that I ever faced that, but I only work with my project and haven't build any other programs for a while. Maybe it happens because ode has been updated, but honestly I don't know.

It's because of the odemaths.h .
I think normalizing a null vector is not possible.
There is a bug.

Unfortunally I do not find a smal sample programm.

Maybe I've to get ogreBullet. Maybe this works.

Thank you.

Florian

Hello again.
Bullet stinks.
I think ODE is much better.

Do anybody have OgreOde_Prefab_d.lib and dll.
Can somebody upload all libs and dlls from ogreode to rapidshare or something else.
I think quite a lot need them. Compiling it didn't work.

Need help.

plz.

Florian

Did you try this tutorial?

Yeah!!!
It works. No error... nothing.
I've compiled ogreode again and now it works.

Thank you very much.

Only one question:
The box is falling down. How can I add a Force to this box. I mean how can I make it fly again?
if(mKeyboard->isKeyDown(OIS::KC_F1))
{
mBody->addForce(Vector3(0,100,0));
}

This does not work.

Florian

It should, try a much higher value like 0, 100000, 0. If it works, best would be to shrink your scene, ode works best with forces and sizes about 1.