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PROF VAUGHN: Okay, and this video is at
using a gradient as a transparency mask.

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So we think of layer masks as revealing or
concealing using black or white paint,

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and a range of grays.

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We can use a gradient that is set from
black to white to create a really subtle

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blend inside of a layer mask.

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This gives you a lot of blending
opportunity.

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So let's do a really obvious example
first, I have a colour photograph open,

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I'm just gonna do a layer adjustment,
adjustment layer, I'll do it black and

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white so you can have a quick view of how
this might work.

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So of course we know our adjustment
layers come with gradients.

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This is the effect, this is the- I'm
sorry, they come with a layer mask.

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That is the layer mask.

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So if we wanted to use a gradient to
blend in the layer mask as a method of

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transparency blending, you could still
use that gradient tool.

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When you look at your gradients, you're
gonna pick the black and white

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version here.

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So this is black and white.

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Whether or not you reverse it is up to you,
remember the way a gradient in a mask

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with black and white will work;
black is going to reveal,

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white is going to conceal.

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So, let's just do, um, let's do a radial
gradient to see what this might look like.

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I'm gonna click and drag, now remember
I've made sure I'm on the layer

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mask thumbnail.

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So this is isolated, it's a pretty small
gradient, let's make it a little bit bigger.

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And it's pretty soft, but you can see I've
got black and white now here in the middle

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radiating out in my layer mask.

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If you wanted to do a really weird, kind
of, small spot, you could.

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Let's look at a linear gradient, now
I've sort of moved from black and white,

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shifted it slowly into colour, because again
the black and white in the layer mask is

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revealing of concealing, so the white in
this case is showing what's underneath.

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So that is a a adjustment layer.

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If we were thinking about using these, um,
to perhaps make some actual editing

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adjustments, we could think about not
using them for creative purpose, but for

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perhaps fixing an exposure issue.

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So in this particular image, the land is
well exposed, it has good contrast, but

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the sky, because the sun is probably over
here somewhere, is a little too bright.

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It's a little bit blown out, we're losing
out