407 Casting multiple drop shadows in Photoshop

- In this movie, I'll show you how…to take that Inverted Jenny composition…that we've been working on so diligently,…and we're gonna mask it against a white background.…And we're also gonna add a couple of drop shadows:…this cool shadow down and to the left,…and this warm shadow down and to the right.…And this is exactly the kind of thing…you see in real life when you're working…with more than one light source.…Now, the thing is, technically Photoshop can't do that.…You can only assign one drop shadow…to any layer or group of layers,…but I'm gonna show you a workaround…that not only works against this white background,…but also against any other layer…regardless of its color.…

So I'll go ahead and switch back to my composition so far,…and the first thing that we wanna do…is twirl closed this paper texture group…just so that we have more room…to work here inside the layers panel.…And then, I'm gonna twirl open the frame elements…which includes this black back layer.…Which, as you can see, if I turn it off and then back on,…