I've made a model resource for a bunch of particles exploding outward from a
point. But every time I create a new model, with that explosion as its
resource, it's always at the exact same 'frame' of its animation, regardless of
when I create it. That is, when I first create a model based on that resource,
the explosion begins, but if I create a new one halfway through the explosion,
the new one will begin already halfway exploded. Is there some way to clone the
emitter resource, or force each model based on it to operate on its own ...