Join Bert Monroy for an in-depth discussion in this video Using alpha channels in multiple documents, part of Artistic Concepts in Photoshop and Illustrator 2.
- This image is from my first volume…of dreamscapes, and I use an alpha channel there…to separate this castle from its scene.…Here's the castle.…Now, it's kind of complex to pull that castle out of there,…so I actually use an alpha channel to do that.…So what I did, is right here,…I'm going to pull up a channel,…and what I'm going to do is I'm going…to look at my RGB, and since white exposes…using white, and a hard-edge brush like this,…I went in there and started to trace over the castle.…So I can select it, getting into tight little areas,…I simply reduce the size of my brush…to a much smaller brush,…and I went in there and just started tracing…all the pieces that I wanted.…
There, just went in there,…and it allowed me to then use that to select.…Now, the beauty of these alpha channels…is that when you want to save that alpha channel,…let's just say we create a new channel.…Let's go over here and say we have something selected.…Turn this off, and I got this selected.…When I save that selection,…there it is, and new channel, and I can give it a name.…
Need to brush up on concepts like perspective and light? Watch the first installment of Artistic Concepts with Bert Monroy here.
- Creating custom materials
- Creating cork, marble, chrome, and glass materials
- Reusing and repurposing layers
- Using layer masks and layer-mask effects
- Using alpha channels