Creating a Porthole to a Far-Away Galaxy

Deke's Techniques by Deke McClelland

In this week’s free Deke’s Techniques, Deke continues construction of his confounding portal to another universe aboard the USS Photoshop. This journey is powered by alpha channels, layer effects, and a good helping of old fashioned Radial Blur. , Deke continues construction of his confounding portal to another universe aboard the USS Photoshop. This journey is powered by alpha channels, layer effects, and a good helping of old fashioned Radial Blur.

We begin with last week’s project, in which Deke applied Content-Aware fill to creatively cut a whole in this Illustrator-based object.

A creative use of Content-Aware fill in Photohsop

First priority is creating a mask to get rid of the white background, and a quick trip through the Channels panel shows that the Blue channel is our best starting point:
Flip through the RGB channels to find the best starting point: Blue

After applying a Layers adjustment and inversion to a copy of that Blue channel, we have an almost perfect mask of the unknowable object:

Reversing and increasing the content of the Blue channel copy makes a great mask

Which when applied to our work in progress, reveals an even stranger world beyond:

Applying the mask opens a whole to a new galaxy in Photoshop

If you’re a member of Lynda.com or LinkedIn Learning, Deke’s got two exclusive movies this week to take you even further into the murky worlds of his creative universe. First, reusing that mask along with some layer effects and blend mode machinations gives the object an odd glow and neutral highlights.

Layer effects provide texture and neutralize highlights
And finally, a bit of old fashioned Radial Blur sets our object apart from it’s celestial background by giving the surrounding stars some stellar motion.

A radial blur sets the stars in motion

Deke’s Techniques, taking you on weekly journeys to the Photoshop unknown but definitely knowable with when Deke is your guide.

Next entry:Using the Puppet Warp Tool in Illustrator CC 2018

Previous entry:Creative Uses for Content-Aware Fill

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