From the course: Photoshop Masking and Compositing: Fundamentals

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Introducing the Calculations command

Introducing the Calculations command - Photoshop Tutorial

From the course: Photoshop Masking and Compositing: Fundamentals

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Introducing the Calculations command

Here we are looking at the final version of the composition. The remaining steps are to add the synthetic rays of sunlight that are coming out of this upper right cloud. We're also going to add the bird, and that will give me a chance to introduce you to the Calculations command, which allows you to use compositing in order to assemble a base mask. I also want you to open Red kite.psd. Notice we've got some text here that tells you all about the animal, but because we're always working from the composite image when we're creating masks, I need you to turn that text layer off there inside the Layers panel. Then switch over to the Channels panel, and let's take a look at the channels that we have to work with. If I click in the Red Channel, then we have some dark areas inside the bird, as well as some light regions as well. This bird is another warm-blooded animal, so it's going to resonate most brightly inside the Red channel. Then we have the Green channel, which of course is our…

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