Special Effects - The Photoshop: Professional Retouching and Compositing Tips, Tricks, and Techniques - page 208

Turning Day into Night
Techniques for turning a day scene into a night scene open up a whole new world of creat-
ive possibilities.
Here's a really simple way to do exactly this, and how to add realistic street lighting by
using the Camera Raw filter and a layer mask.
1. With an image file open in Photoshop ( Figure 4.1 ) , create a copy by going to Lay-
er > New > Layer via Copy (Command/Ctrl+J). Name this layer night .
Figure 4.1
2. Because we're going to make use of a filter for this effect, we want to use it as a
Smart Filter, so go to Filter > Convert for Smart Filters, and then to Filter > Cam-
era Raw.
3. To create the nighttime look, move the Temperature slider to -55 so that we intro-
duce much more blue into the picture. Then darken the picture by moving the Ex-
posure slider to -3.00 ( Figure 4.2 ) , and click OK.