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Re: Shadows (Yet Another Object Graphics Question)
David Fanning wrote:
> Jason P. Meyers (email@example.com) writes:
> > Wow! This works great! I had already suspected the Z-buffer fight
> > problem and had pre-positioned the ground plane so it wouldn't be an
> > issue. It does help that I have a simple geometry case.
> Oh, yeah!? You wouldn't want to post a little code,
> would you, so the rest of us could have a look-see. :-)
> P.S. Let's just say I spent about $200 bucks on Amazon
> today, now that I have a couple of pointers to the books
Dave: can I have a copy of the pointers so I can de-reference them!
(I know, bad joke but I couldn't resist!)
> I ought to own. I hope I can understand them better than
> I can understand the IDL documentation concerning
> these topics. :-(
> David Fanning, Ph.D.
> Fanning Software Consulting
> Phone: 970-221-0438 E-Mail: firstname.lastname@example.org
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Toll-Free IDL Book Orders: 1-888-461-0155
I would be glad to post the code. However, I want to fix a recent
"problem" with the re-sizable window trick I learned from Dave's book
and website. I discovered the problem yesterday in class when I tried
to demo my little program to a classmate on our school's sun
workstations. I was surprised to see that the draw window got corrupted
when I resized the widget because it was working fine on my WindowsNT
machine. After some investigations, I discovered the problem was
isolated to version 5.3 on the suns (version 5.2 worked fine and I don't
know about 5.4 since our department hasn't installed it yet) I was told
by our computer folks that they do not consider 5.3 a "supported"
version. As it turns out, I suspect the problem is related to the
viewport size not being updated automatically when the window size
changes. I even tried explicitly setting the viewport size to [0,0] but
it didn't work. My latest idea is to also update the viewport at the
same time as the window to see if that works. If it does, I will then
make my little demo available on my webpage.
Ph.D. Student, Center for Imaging Science
Rochester Institute of Technology