How to make the cloth torn?

Hello, I tried to modify NxOgre example 1001.cpp (with NxOgre 1.6 and Ogre 1.7)

However, I was unable to make the cloth torn. Even I set the gravity 1000 times as the original constant.

Should I modify desc.mTearFactor or something?

Sort of.

To enable tearing, when you cook the Cloth you need to enable the tearing flag.