I am trying to achieve a 3D hollowed-out effect to get a tube or empty donut look. This is the file that I am working on. The intended effect is a 3D quarter pipe that looks hollow and concave, so that it's caving indwards away from the viewer. As you can see, it's not perfect because I am only using 2D shapes with gradients and inner glow effects. Is there a way to create a realistic and authentic concave look for this hollow pipe/cylinder in Illustrator CS5? Thanks!
Yes, this is pretty much what I am looking for. Except how would I make it in the shape of a perfect quarter-circle? Because this is for an iPhone game, and it's supposed to be in the bottom right hand corner of the screen with the edges of the pipe touching the screen edges. So how can I make the pipe do that? Again thanks for the help!
…how would I make it in the shape of a perfect quarter-circle? … it's supposed to be in the bottom right hand corner…
It is a quarter circle (90°). Just orient it that way in the 3D Effect dialog.