making a dotted background

hey there,

i was lookin for using this effect in one of my ads.. so i wanted to know as to how to make such effects in illustrator or photoshop..

 

It's rather simple, Using Photoshop just draw some black to white gradients and -> Select the channels palette -> Select any channel u like -> apply the halftone filter (If I remember correctly it's under the filter->pixelate menu)
Then go back to the layers palette -> add a gradient map adjustment layer with a gradient consisting of the colors you like.

The image above maybe a vector (at istockphoto) but it was created using photoshop (using this or maybe some other technique)and then autotraced using illustrator (I know this for sure but I am too lazy too look for the thread at istockphoto)

 

thankz a lot for the help.. yes itz a vector on istockphoto...

i got it done as said by you.. but the only thing tht i wasnt able to do was to convert it into a vector.. how do you autotrace it in illustrator...??

and again thankz for the help...

 

take a look at this tutorial