In this section, you will learn about the layers palette, what layers are used for, and how you can use layers. Opacity - this is how transparent you want the layer to be. For example, say you have a layer that is a white rectangle on top of the background which is a green sandstone type material. By setting the opacity of the white rectangle layer down, you will allow more of the bumpy green background to show through, making the white less visible. If it is turned off then you can draw anywhere on the image.
Layers are very effective.
Instead of having to take forever trying to select a certain part of the image, you can simply select that layer and apply filters and special effects to just that layer. Layers can also help you to create cool text effec ts and much much more. All photoshop users should get to know their layers palette well. All rights reserved.