public void applyTorqueImpulse(final Vector3f vec) {
        rBody.applyTorqueImpulse(Converter.convert(vec, tempVec));
        rBody.activate();
    }
Apply a torque impulse to the PhysicsRigidBody in the next physics update.

@param vec the torque impulse vector (in physics-space coordinates,
not null, unaffected)
jme3-jbullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java