SquishMe
10-11-2006, 04:15 PM
Here is a quick photoshop tutorial on making a tube-like landscape, just the thing for the latest challenge "Eon". The results are pretty crap, but it could be a good starting point for laying down textures or gridlines.
http://img375.imageshack.us/img375/4629/tut1jk0.jpg (http://imageshack.us)
1) Create a new SQUARE image and make a black circle on a white background. This will be the "horizon" of the tube. Make sure the circle covers the image centre pixel.
2) Find or create a texture of a flat landscape at a fairly high altitude. It is better to squish it quite a lot horizontally.
3) "Unwrap" the circle layer by using Menu->Filter->Distort->Polar Coordinates with "Polar to Rectangular" selected.
4) Then we use Menu->Filter->Liquify to distort the landscape image into the unwrapped circle shape. You can select the target shape layer as the background in the liquify tool.
5) Then "wrap" the landscape into a tube by using Menu->Filter->Distort->Polar Coordinates with "Rectangular to Polar" selected.
6) Finally, we clean up the image and use it however we like.
And there you have it. A very quick and dirty method of off-centre cylindrical mapping in photoshop.
Hope it helps. :arteest:
http://img375.imageshack.us/img375/4629/tut1jk0.jpg (http://imageshack.us)
1) Create a new SQUARE image and make a black circle on a white background. This will be the "horizon" of the tube. Make sure the circle covers the image centre pixel.
2) Find or create a texture of a flat landscape at a fairly high altitude. It is better to squish it quite a lot horizontally.
3) "Unwrap" the circle layer by using Menu->Filter->Distort->Polar Coordinates with "Polar to Rectangular" selected.
4) Then we use Menu->Filter->Liquify to distort the landscape image into the unwrapped circle shape. You can select the target shape layer as the background in the liquify tool.
5) Then "wrap" the landscape into a tube by using Menu->Filter->Distort->Polar Coordinates with "Rectangular to Polar" selected.
6) Finally, we clean up the image and use it however we like.
And there you have it. A very quick and dirty method of off-centre cylindrical mapping in photoshop.
Hope it helps. :arteest: