Please explain full to better understand. Write answer in atleast 2-3 pages. Write answer according to given question (****should be covered the whole question****) . I need more and proper explaination. Subject:- Computer Graphics I am unable to see previous screen shot so please don't copy from previous one.

Describe how much various light contributions change as P varies over a facet when i) The eye is far away from the facet and ii) The eye is near the facet