Re: Despilling like Keylight with standard AE tools

I'm only thinking out loud, so I could be quite wrong.

But basically the correction itself is probably just a levels adjustment, so depending on whether you're using blue or green screen just tweak individual channels accordingly.

If you want to get more complex, then apply the levels filter to an adjustment layer, then duplicate your keyed layer and use it as a track-matte for the adjustment layer, perhaps applying a second key to pick out spill colours, or an edge detection plug-in, or other secondary keys to pick out the regions which are giving you grief. This way the adjustment is only being applied to the areas you have keyed out in your duplicate layer.

That may work. Personally, I'd just use the AE "Spill Suppressor". It's always done the job for me...

-Chris