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I'm still working inside Collection.psd. I've gone ahead and selected the dash layer which is the frame, and I've set it to the Overlay Blend mode, the Fill value is set to 50%, and I've turned on all three of the layer effects, and that's where we are so far. Now, in this exercise I'm going to explain how you use Global Light inside of Photoshop in order to maintain a consistent light source for all of your directional effects. Again, the directional effects are Drop Shadow, Inner Shadow, and then this guy Bevel and Emboss.
So just so that we can see multiple effects working together across multiple layers I'm going to go ahead and style this spiders layer by clicking on it, and I'm going to reduce the Fill value to 0% so that it totally disappears as you can see, because it's utterly transparent. We have no layer effects assigned to it, at least they're not turned on yet. Now, let's turn on Drop Shadow, and that goes ahead and casts a shadow behind the layers without the layers having any form or substance of their own, which is amazing, and then I'll add the Inner Shadow effect as well.
Now, the other effect I want to add is Bevel and Emboss. And in fact, I just want to take the Bevel and Emboss effect. Now we've already seen, and I want to clone it from this dash layer here, the frame, onto the spiders layer. So I'm going to get that one layer effect right there, Bevel and Emboss. I'm not going to drag the fx in other words, because that would drag over the Drop Shadow and replace my other Drop Shadow which I don't want to see happen. It would also bring over the Gradient Overlay which I don't need. So I'll press and hold the Alt key or the Option key on the Mac and drag that Bevel and Emboss effect on to spiders like so and then drop it in the place.
That clones the Bevel and Emboss effect and mixes it with the previously existing Drop Shadow and Inner Shadow. So we have all three of the directional effects represented on the spiders layer. Next, I'm going to switch over to the frame layer the one called dash, and I'm going to make sure I can see its Vector mask. Then with the Black Arrow tool selected, which is still selected for me, I'm going to click on that frame outline, and I'm going to switch it from a frame effect to a lid by clicking on this Add to shape area icon, like so. And that's it.
Now, the thing you should know is that all of these effects are set to use Global Light. That is the Use Global Light check box is turned on. I'll show you what I mean here. I'll go ahead and click on the Vector mask thumbnail in order to turn off that Vector mask, so we're no longer seeing it that is. Then I'll double-click on Drop Shadow in order to bring up the Drop Shadow for the lid layer there. Notice that Use Global Light is turned on, and as a result we're looking at an Angle value of 135 degrees. Now, you don't necessarily set the Angle value to 135 degrees when you turn on Use Global Light.
It can be any value from 0 to 360 degrees. However, it's going to be the same for every single effect for which Use Global Light is turned on. So if I go to Bevel and Emboss, it's turned on down here as well, and of course the Angle value is 135 degrees as a result. It's also turned on for all the effects assigned to the spiders layer. By the way, Use Global Light is turned on by default, because Photoshop assumes that you want a consistent lighting angle. So how do you go about changing that lighting Angle for multiple effects across multiple layers at a time? Well, there is a few ways to work here.
One is to bring up a representative Bevel and Emboss effect. So I'll double-click on the one assigned to the spiders layer right there. Then I'll move my dialog box over a little bit, so we can see what's happening onscreen. I would go ahead and drag this little plus inside of the sphere in order to change both the Angle value and the Altitude value. So as I drag around this little spot in the middle there, I change the Angle value. As I drag either inward or outward, I'm going to change the Altitude value.
Notice that all of the effects change in kind. So I'm changing the angle of the Inner Shadow and the Drop Shadow and the Highlights from the Bevel and Emboss effect and the Shadows from the Bevel and Emboss effect, everything across the image. That is to say everything except for those shadows that are associated with the top and bottom lines. Those are lines of my very favorite up here at the top and then & Butterflies down here at the bottom. Those are live text layers to which I've assigned that shadow type effect, but you may recall when working with the shadow type effect you set the Distance value to 0, and therefore the Angle no longer matters, because you're not casting the shadow, the shadow is sitting directly under the text.
So these two layers are not affected, but the other two layer spider and of course the lid are affected in kind. So that's one way to change the Global Light. The other is to switch over to either Drop Shadow, or Inner Shadow. You can change the Angle value here as well, or you can move your cursor out into the larger image window, and you can just drag, like so. Notice that that drags the drop shadow around, but that has the effect I want you to look at the layer Style dialog box. So look at the Angle and Distance values right there and notice as I drag both of those values are changing on me.
Because I'm not working with the Bevel and Emboss effect, I'm not changing the Altitude value. I am changing the Angle value as you can see, and I am changing the Distance value, but the latter, that is, the Distance value, is use changing just for Drop Shadow. It's not changing for Inner Shadow or Bevel and Emboss, but Angle is changing for everybody. It's a pretty intuitive approach, because you can just drag the shadow to where you want it to be and all the other effects are going to update to keep up. One other way to work. I'm going to go ahead and click OK to accept my changes.
Then go up to the layer menu and choose Layer Style and notice that reveals a big submenu of options, including Blending Options, right off the bat, which has a keyboard shortcut if you loaded DekeKeys of Ctrl+Shift+O or Cmd+Shift+O on a Mac. Then we've got all 10 of the layer effects. After that you can see that you can Copy effects from one layer and then Paste them on to another. You can Clear out all the layer effects if you like. They're called Layer Style here, because the style By the way, just so as you know is the collection of layer effects working together.
You can actually save styles off if you like as we'll see later. Then we have these commands right there which I will read from the bottom. Scale Effects allows you to scale all the effects at once. So if I choose the Scale Effects command, and I want to double the size of my effects, I would enter a Scale value of 200%, and that's going to scale the effects, all the effects that are assigned to this layer to the selected layer, notice that. The lid remains unmodified. I'll cancel out of there. Also, if I go to the layer menu, choose layer Style, we've got this command Hide All Effects which will hide all of the layer effects inside your image across the entire composition.
It'll then change to show all effects, so you can choose the command again to bring all the effects back. You can Create layers that will convert all the layer effects to independent layers, some of which are going to be clipped inside of the original layer. That is basically your way of rendering out those layer effects so that you can modify them as pixels using things like the Brush tool and other tools inside a Photoshop. Then finally we have Global Light. These options right there are going to effect all layers for which the Use Global Light check box is turned on.
So I'm going to reset my Angle value to 135 degrees, and I'm going to change my Altitude value back to 50 degrees, and that will reset all of my modified options except for the Distance value associated with Drop Shadow. The reason that that's not accommodated for is because I dragged it to a totally different location. So I'll go ahead and click OK to update the directional styles. Then finally to reset the Drop Shadow I'll double-click on the Drop Shadow for the spiders layer, and I'll change that Distance value to what it used to be which was 15 pixels.
Then I'll click OK. And that is how you take advantage of Global Light inside Photoshop.
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