In this how to video, you will learn how to create a rock texture in Photoshop. First, open the program. Select your foreground as a gray color and the background as a darker gray. Go to filter and render clouds. Go to filter and noise to add noise. Add about 3 percent and click okay. Add a channel and click filter. Apply the difference clouds multiple times until you get something very dark. Add more noise and then fade the add noise filter. Go back to the original layer and go to filter and add a lighting effect. Adjust the spot until you get something you like. Change the channel to Alpha 1 and click okay. Now you have created your rock texture.