Resetting lighting and retaining viewpoint

[karron at KARRON.MED.NYU.EDU]

The ortho call does a hidden translation of the eye position. I
was thinking of this problem, and the solution to my mind is to
make a wrapper for the ortho call to eliminate the translation effect.

This would be by instead of defining a viewing RECTANGLE, force it to be a
viewing CUBE, and specify a height and width, not a left and right clipper,
etc.

I don't know how you would correct for a non square window. I would have to
think about that for a few more seconds before I made a better suggestion.

Please post your solution, as I do want to be able to switch transforms
for these reasons: While a perspective transform looks better, an ortho
is much better for sighting things along lines and taking measurements.

I also have a better winopen() call idea, and when I get all of this working
nicely, I will post it.

dan.
+-----------------------------------------------------------------------------+
| karron at nyu.edu (mail alias that will always find me)                        |
|                                         Dan Karron                          |
| . . . . . . . . . . . . . .             New York University Medical Center  |
| 560 First Avenue           \ \    Pager <1> (212) 397 9330                  |
| New York, New York 10016    \**\        <2> 10896   <3> <your-number-here>  |
| (212) 340 5210               \**\__________________________________________ |
| Please Note : Soon to move to dan at karron.med.nyu.edu 128.122.135.3  (Nov 1 )|
+-----------------------------------------------------------------------------+