Lighting Effects - The Photoshop: Professional Retouching and Compositing Tips, Tricks, and Techniques - page 166

Figure 3.4
5. Place your thingys layer into the open image by choosing File > Place Embedded
(File > Place in earlier versions of Photoshop), and make sure it's positioned at the
top of the layer stack. Resize it to fill the layer by using Edit > Free Transform.
Note
The Place command opens the file directly into the image you're working on and
adds it to the layer stack. The Open command simply opens the image.
6. Change the blend mode of the thingys layer from Normal to Screen, which will
make only the lighter parts of the layer visible.
7. Add a white layer mask to the thingys layer, and with the foreground color set to
black, choose the Gradient tool from the toolbar.