I was tinkering with Away3D and the x-ray method and it ended up with a flashlight effect, see the attached picture for still snapshot, or go to http://dhkgames.com/games/redshifted/ for a real-time test. Click on the stage and use Q/E keys to rotate the flashlight and see the results. The female model is being rendered with idle animation. use the LEFT and RIGHT keys to rotate the female model.

Thanks!

I copied and pasted the Flashlight filter for Starling into an Away3D filter, see example attached along with the filter and associated task, copy them in their respective subfolders.. All credits should go to the guy who wrote the flashlight filter for Starling Devon O. Wolfgang http://blog.onebyonedesign.com/actionscript/starling-filter-collection/