Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Message-ID:	<3D06A76C.2050503@verizon.net>
Date:	Tue, 11 Jun 2002 18:44:12 -0700
From:	Tron Thomas <tron DOT thomas AT verizon DOT net>
User-Agent:	Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:0.9.4.1) Gecko/20020314 Netscape6/6.2.2
X-Accept-Language:	en-us
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	OpenGL renders incorrectly

I have written a simple application using OpenGL.  I was able to 
successfully compile and run the program on using Visual C++ 6.0, 
Project Builder 1.1 for MacOS X, and the GNU compiler included with 
Intel version of RedHat Linux 7.2.

I wanted to get the program to build under GNU compiler for cygwin.  I 
was able to build the program.  However, it does not render correctly 
when it runs.  The program displays a geometric object lit with a single 
light source.  In the cygwin version the object appears extremely dark, 
as if no lighting is shining on it.

This problem does not happen on any of the other versions of the program 
I've been able to compile and run, so I am reasonably confident the 
problem is not in my source code.

Can anyone offer and explanation for this?

I am running cywin an Intel Pentium IV system with Windows XP 
Professional and a 64 Megabyte nVidia GeForce 3 video card.

 I can make the source code available to anyone who is interested in 
trouble shooting this issue.



--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -