Crossing The Equator - a photo on Flickriver

            Mangled marbles.

Next time you’re flying across the equator make sure you are standing by a draining sink. You should see the direction of rotation of the swirling water plummeting down the plughole reverse as you go over the equator… in theory :)

Depending on which hemisphere you are in the water swirls clockwise (Northern) or anticlockwise (Southern). This is due to the Coriolis effect which arises from an interaction between gravity and the spinning spheroid on which we sit… or fly. The same effect also causes weather effects like anticyclones being high pressure areas in one hemisphere and low pressure in the other, and vice versa for cyclones.

This image is the result of merry mangling for Sliders Sunday. It reminded me a bit of water going down a plughole in two directions at once, hence the title.

The basic approach was to start with a brightly coloured image (I’ll link it as I normally do in the first comment), radially blur it and then copy the resulting layer. Use the same twirl distortion in different directions on the two copies and then blend them using blend ranges. You can find instructions for this sort of effect using Google, but this is the first time I have tried it. I can’t help but think the next attempt will be better! Fun was had which is the main thing...

Thank you for taking time to look. I hope you enjoy the image! Happy Sliders Sunday :) 

[1. Chose bright starting image (would have been better with more variation).
2. Radial Blurred
3. Copied layer.
4. Twirled layers in different directions.
5. Copied top layer and moved it down to layer 3.
6. For each layer added HSL adjustment and played with them.
7. For top two layers blended them with Blend Ranges, lowered opacity and Blend types to taste (!)
8. Moved the layers about with Move tool.
9. Cropped; added dark vignette and depth of field blur to blur outer edges.
10. Added frame.
I started out in Photoshop, but moved it to Affinity Photo which allowed much more subtle adjustments to blend ranges and previewed blend types.]
   

Taken on: February 25, 2018

Tags:

marbles

vortex

HSS

layer blends

bright

Sliders Sunday

Spiral

LAB inversions

twirl « less

Groups appears in: • Sliders Sunday -- Post Processed To The MAX!

Stats: 2,516 views / 21 comments

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