@tanya
its clear to some extent ,i mean much clearer then before for sure. but what is the other angle of explanation which you have mentioned.
vfx!! you are scaring me by asking that, is it that vast?? but let me try to be as specific as possible ,PFB
1.how to create computer generated imaginary and manipulating them
2.How to combine them to live action elements in real world shot.
3.green screen and rotoscoping
4.camera tracking
5.what is keying, clean plate, color correction hand roto , reflection