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The previous tips' Pinch Vortex use inspired me
to look for even more interesting effects. The
basic principle (as with all reversible domain
shifts) is to apply your distortion, do an effect,
and then undo the distortion.
All of these effects use Pinch Vortex at an
intensity of 50, centered at 0,0. As shown in the
Vortex Blur tip, at these
settings, the pinch vortex is just about reversible.
I did all these effects at 640x480, and then scaled
the results down for use on the web page. Keep this
in mind if you think the results are a bit small!
Here's the image I used as a basis for all these
effects (which looks nicer at its original 640x480):
 The first step you should always do is to mask off a circular area in the center. For these pictures, I made the circle as tall as the image, in the center. Reverse Twirl To start things off, try Pinch Vortex, KPT Twirl at 30 degrees, and Pinch Vortex:  The regular Twirl spins the center, leaving the edge alone. This variation leaves the center stationary, and moves the edge. Expanding Feedback Now try Pinch Vortex, KPT Video Feedback (telescopic feedback, intensity 80, angle 5 degrees), and Pinch Vortex:  This gives you a sort of "expanding" feedback. Spherical Tiling Well, sort of. Use KPT Vortex Tiling in its Normal mode. Then apply the Pinch Vortex:  This gives you a kind of spherical tiling. Pearls Doing the "spherical tiling" thing backwards (that is, Pinch Vortex followed by Normal Vortex) yields this:  On some images, this creates a look of a large collection of pearls. Pearls on a Sphere Simply apply a Pinch Vortex to the "pearls" image:  Swirly Blur Use Pinch Vortex, KPT Smudge at 45 degrees, intensity 5%, and Pinch Vortex:  Substitute Motion Blur for Smudge if you like. Swirly Tiles Pinch Vortex, Pixelize (called Mosaic in Photoshop), and Pinch Vortex:  This can be especially interesting if your tiles are not square. Swirly Ripples Pinch Vortex, Ripples, Pinch Vortex:  I used an amplitude of 10 in Picture Publisher. Smaller ripples seem to work better, unless you're really aiming for that ultra-distortion effect. Swirly Charcoal Pinch Vortex, Charcoal, Pinch Vortex:  Swirly Wind Pinch Vortex, Wind, Pinch Vortex:  Swirly Prism Pinch Vortex, Prism (offset the red and blue channels in opposite directions), and Pinch Vortex again:  This probably wasn't the best picture for this effect; something with more color changes shows this off better. Smoky Sphere Set your colors to black and white, use Clouds, then Pinch Vortex:  Experiment I'm sure there are lots of things I didn't try, mainly because I was too lazy to load up Photoshop and try all the distortion effects it has that Picture Publisher doesn't have. One promising idea is to try the Displace filter. |
