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NOTE: There's a tutorial on how to create this effect using GAP here by ccbarr however some individuals out there don't have, nor use gap so here's how you can create the spinning pole in Gimp.
Straight Pole: (Y axis changed)
Angled Pole: (X and Y axis changed)
Lets begin!
Part 1: (The Base)
First off make your base so were going to make the spinning stripe pole above. So go ahead, and download, and use this image.
Import it into Gimp in a new document, and copy it, now close that document, and make a new one at 400x400.
Now select your "Bucket Fill Tool" and change it from "FG Color Fill" to "Pattern Fill", then choose the pattern you copied which is the top left as seen in screenshot below.
Now fill your layer with that pattern, and you now have your Base, so change the layer name to "Base".
NOTE: The pattern is optional, you can make the base however you want.
Now I would recommend for you to save your base/image.
Part 2: (The Pole)
Now duplicate your base image, and go to Filters/Map/Map Object.
Now change Map to: to Cylinder.
Now click the Cylinder Tab, and you can adjust the settings you want for it here.
Next click the Orientation Tab and here is where you can be very creative, now if you want a straight pole, then don't mess with the X or Z axis, if you do then feel free, but don't mess with the Y axis just yet as we want that at 0 for now, because that'll make our spinning pole.
Part 3: (The Animation)
Right now you should have your base image at the bottom layer names "Base" and above that layer should be your pole.
Now move the base layer up, and duplicate it a bunch of times.
So go to your second layer above your first pole frame.
Now go back to Filters/Map/Map Object
Now if you used the X or Z axis you'll haft to save each pole image you make individually, cause when you apply the filter above that layer of your base you'll get a pole inside your pole, as seen below.
If you didn't use the X or Z axis then you won't get that.
So now with that being said I'm going to assume your making a straight pole. Now here where math comes into play. From 0-180 we need to do multiples. I did multiples of 20, which I didn't need to go to 180, if I did I would of got a pause in the animation, so I went to 160. For multiples of 10, you would go to 170, for multiples of 5 it's be 175, and 2 it's be 178.
So each frame of a multiple of 20 would be.
0, 20, 40, 60, 80, 100, 120, 140, 160
It helps a lot by naming the frame of what you changed your Y axis to, so you know where your at encase you forget.
So now make your animation, and last thing you would need to do is crop it, and/or give it a background. However that's just optional.
Straight Pole: (Y axis changed)
Angled Pole: (X and Y axis changed)
