making fluffy clouds

i have started making clouds for my fly scene i started by playing around with a tea pot to see if i could turn it in to a cloud.

i started by drawing a tea pot and then i added particals to it i used the partial veiwer to achive this. i then created a matrerial in paint jsut using a black and white bg and dragin it down to opcity channel i also used mask and a graidt ramp to achive the finshed material and this is the final result.