i have no problem determining shadow when the object is simple, but when the object is complicated ( such as stacked boxes and vase ), i have difficulties deciding the shadow points and how it falls on the surface. if anyone can give me a picture or example, i'd really appreciate it
and lastly, in case of the outdoor light source / sun, how can i know for sure the length of the shadow.
here are some ref pictures from perspective made easy by R Norling, it's a good book that covers everything about perspective but it's too bad that he did not cover a lot regarding the shadow in perspective. your help will be much appreciated, thank you :)
sorry for the low quality picture, i just took a quick snapshot using my crappy webcam
light from a nearby source
light from outdoor source / the sun