THANKS,my professor at the university he taught us the same technique very well and he wanted me to learn it the hard way but I wasn't paying much attention to the lectures eventually i learnt it own my own!
You're a legend, was looking for this all over google (this method) as i saw it on a book and all googles results were a load of bs. this is the one i was looking for and the best method out there, thank you very much!
haha of course. I'm doing visual communication and design at school and was in dire need for it, but the pages from google just linked me to useless ways that i didn't know. this was detailed and very good at explaining what i needed.