8. Adobe Photoshop CS4 CS5 polka dot effect.

Step 1: Create a new document of size width 10px and height 10 PX. Resolution of 72 PX . This is the basic of our polka dot for our effect that we are going to applied .

STEP 2:- use the zoom tool to zoom out the new document that make you to view this image.

Step 3:- Use the Marque tool and select the circular shape to draw a circle shape.press shift key while drawing the circle this will help to draw a perfect circle otherwise it will looks like a ellipse

Step4:- fill this circle with black colour and press cntrl +I to invert the Color . 

Step 5:- go to EDIT-> DEFINE PATTERN.   Name the pattern as polka dot pattern. Naming will help you to identify the same afterward

Step6:- you are done with part 1

Step7:-  Now go back to original image on which you are going to apply the effect. 

STEP 8:-  right click on image and convert this into smart object.

STEP 10:-  now go to Edit -> fill 

Content 

Use pattern

Custom pattern polka dot pattern

Fill the mask layer with polka dot pattern.this pattern was created by us in part 1. 

STEP 11:- Now you are done with polka dot pattern . The image after applying the polka dot pattern will look like this.

You are done with this tutorial . Now you can also follow my YouTube tutorial for more details .