If you want to see before/after image while using filter, click on prewiev box and you can see it in full size not just a thumb. PS is very complicated, but hes developed for pro use in first place. Learning the commands in PS is just the first step. For every kind of photo manipulation or creating the texture, etc.  there is many ways of doing it by using different series of commands. Thats why hes so powerful, its totaly nonlinear :)

Tihomir

Open your mind and share the knowledge!