Lighting Effects - The Photoshop: Professional Retouching and Compositing Tips, Tricks, and Techniques - page 179

Figure 3.16
6. Click OK to close the Color Picker, and then click OK again to close the Gradient
Editor. At this stage the lighting effect is going from top to bottom, with the warm
light at the top and the cool blue light at the bottom, but we need it to come in at an
angle from the side.
7. To do this, rotate the Angle disc from within the Gradient Fill dialog (it should still
be open). In this case I set the angle to 35 degrees ( Figure 3.17 ).
Figure 3.17