I'm compositing a castle siege in AE and want to simualte a 'camera shake' type concussion when large rocks hit the ground near the camera POV. I currently have the camera doing a little vertical hop (8 pixels up and down) although this looks okay - there is something *off* about it and I can't figure out what's missing. I've experimented with a bunch of stuff - nothing looks right. Are there any hard and fast rules regarding this effect? I've even resorted to playing my LOR DVD's one frame at a time, trying to see how they did it!
Any help is greatly appreciated!