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View Full Version : Casting shadows on adjacent objects


Idiot
January 29th, 2004, 10:56 PM
I'm working on the Fred's cube exercises (over at the middle class), and I'm having problems constructing shadows that fall on adjacent objects. I haven't been able to find much information despite the fact that everyone seems to know how to do it but me. The book I own on perspective (Perspective for Comic Book Artists - David Chelsea) doesn't even deal with the subject. The only tutorial I have is from TeamGT (http://www.teamgt.com/forum/cubes03.htm)

http://www.teamgt.com/forum/shadow05.gif

This is great if I'm working with parallel cubes, but what if they are at different angels? Where would the line between the left vanishing point and point aa go? I don't know! What about casting the cube's shadow onto a sphere or cylinder? Or vice versa? Or what about the shadows here

http://www.lead-works.com/files/art/digital/cube_exer/6.jpg

I ran the left line of the shadow (on the middle cube) from the base up to the light source, but I was guessing, I don't know if thats right.

If you could point me in the direction of a tutorial, or a book that deals with this, I would appreciate it. I'd just order another perspective book, but I'm afraid that it might also just skim over, or ignore the subject, and that's all I'm really looking for (info on shadows). So if you'd recommend one, or give me any help I'd appreciate it.

Idiot
February 9th, 2004, 06:21 PM
Just the name of a book please. Someone must have learned this before?