After effects question, reg. particles

Is there a way to make particles emit from an object?

imagine 2 doors slamming together (2 old doors), then having a narrow object placed right in the middle of those doors emit particles all over and out to all sides to simulate dust or something… :slight_smile:

I can’t figure it out… the MUST be a way…

Hehe I played with that snow tut a lot to; try taking random pics for displacement; snow gets crazeh…