A fun rainbow effect
I saw somebody ask about this effect on a forum, and I thought it might be fun to play. I can’t imagine anybody will ever use it, but hey, it’s the weekend, why not mess around?
Before:
![TEXT](rainbow01.jpg)
After:
![TEXT](rainbow02.jpg)
Start by making a Gradient layer:
![TEXT](rainbow03.jpg)
By default it will probably give you a black-and-white gradient …
![TEXT](rainbow04.gif)
… but you can choose a rainbow instead:
![TEXT](rainbow05.gif)
NOTE: If you can't find the rainbow option in your version of Photoshop, follow these instructions.
I also changed the angle and the scale a bit:
![TEXT](rainbow06.gif)
NOTE: Always check the "Dither" box, to prevent the risk of banding.
Now the image looks like this:
![TEXT](rainbow07.jpg)
Play around with the layer blend modes. You’ll probably choose "Color" mode. Also adjust the opacity if necessary:
![TEXT](rainbow08.jpg)
Now make a Solid Color layer:
![TEXT](rainbow09.jpg)
And choose black:
![TEXT](rainbow10.jpg)
Invert the mask on that layer from white to black, to hide the black colour on the image:
![TEXT](rainbow11.jpg)
Then choose an enormous soft brush, and gently paint with white on the mask around the edges to add that aggressive vignette:
![TEXT](rainbow12.jpg)
Voila!
![TEXT](rainbow02.jpg)