Date:         Wed, 15 Oct 1997 20:04:01 +0200
From: Conny Joensson <cjo@KIRUNA.SE>
Subject:      [IML] IFW: Warp effect quicky

A couple of weeks ago I added a new Exhibition (no. 4) to my Corner.
One of the images is called "Somewhere in time" and depicts two
spaceships flying towards the viewer through some kind of warp field.
I liked this warp field so much that I asked the artist (Cesare
DeRossi) how he had attained it. Today I recieved his answer, and I
think his technique is so cool that I just *have* to tell you all
about it. ;)

First of all you need a PC with PhotoShop. I am sure you could
accomplish the same thing with other programmes and/or platforms, but
this is what he used (and I duplicated) to create the effect.

1. Create a new image with a black background.
2. Set the foreground colour to a pastelle blue or green (or
something)
3. Select Filter/Render/Difference Clouds
   This makes blue/green/whatever clouds on the black background
4. Select Image/Map/Equalize, to make "harder" contrasts
5. Select Image/Adjust/Hue/Saturation to adjust the colour to
   your liking. (Make sure to check the "colorize" checkbox!)

Now we have created the basic space environment. You could start out
with a completely different kind of image, but this is a good start.
We still need the warp effect though. Hang on.

6. Select Filter/Distort/Polar Coordinates Polar to Rectangular
7. Select Image/Rotate 90 degrees clockwise (cw)
8. Select Filter/Stylize/Wind left
9. Select Image/Rotate 90 deg ccw
10. Select Filter/Distort/Polar Coordinates Rectangular to Polar

Swosh!!