Open a new image and mask a square area like I did.
2.
Choose white as foreground colour and black as background colour.
Use the the gradient tool -reflected as shown on the right, starting in the middle
dragging it down to the end of the selection.
Now we have the basic pipe, let's tweak it!
3.
Let's make "riffles" for a more realistic feel!
Make a new layer, zoom in, choose the Pencil tool and draw a 1 pixel-line over the pipe
as shown on the right (hold the shift-key to make a straight line).
Now apply the Blending Mode "Overlay" for this layer.
Next we make another layer, painting a black line next to the white line on the left side.
Zoom out and look what we've got here... looks nice.
4.
Pick the Type tool and write whatever you want, scale and move it around as you like -
I prefer a position out of the middle of the pipe cause the effect is more realistic...
5.
Next, apply the Blending Mode "Overlay" for this layer like we did before and see the change - the text looks like being painted on the pipe.
Go to Image- Adjust- Brightness/ Contrast and set Brightness
and Contrast to a setting you like... text should be readable but not too "strong".
Ready if you don't want any colour in it!
6.
You can change the colour of the pipe by using image- adjust- hue/satursation
-check the "colorize" box,
the text will change it's colour too.
Make 2 or more "riffles" - step 3 - to give it more "round feeling"
and have fun!
