Runtime error when implementing a tutorial

[patokun]

Hello all!
I'm trying to get NGD to work in Irrlicht using this http://www.newtondynamics.com/wiki/inde ... Tutorial#1 , but I'm having a bit of a trouble since I'm using NGD version 2.33

I altered

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nWorld = NewtonCreate (NULL, NULL);

to

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nWorld = NewtonCreate ();

However I do not seem to know what I should add as an argument to NewtonCreateBox and NewtonCreateBody, as the tutorial didn't take into consideration the "const dFloat *offsetMatrix" as it wasn't in version 1.5 and I'm using version 2.33.
I tried sending NULL but that caused the application to crash.

I also tried adding an offset as follows:

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dMatrix offset (GetIdentityMatrix());
   collision = NewtonCreateBox(nWorld, 0, 0, 0, NULL,&offset[0][0]);

However this is causing another runtime crash, and when I debug it shows me that it happened at this line:

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boxNode->setPosition(mat.getTranslation());

So I'm assuming I'm filling out the offset matrix in the preceding functions wrong? If so, any advice on how to proceed?

Thank you.

[JoeJ]

try giving the box a size:

collision = NewtonCreateBox(nWorld, sizeX, sizeY, sizeZ, NULL,&offset[0][0]);