The Emboss option makes the cutout appear etched into the image. Shadows and highlights are added to simulate the effect of light shining on a raised object. Three layers are used to produce this effect:
Use the Offset field to specify the offset value in pixels for the three layers. The best results are obtained with values of 1 or 2.
(a) Paste Mode box (b) Offset field (c) Direction field
Use the Direction field to specify the angle of the simulated incident light. The values range from 0 to 7 and specify the following angles of incident light.