On Fri, Mar 12, 2010 at 7:43 PM, John Denker wrote:
> 2) The problem is not entirely gone. The window for
>> observing the bug is much smaller, but not zero.
>>
>> The symptom is the same: depending on camera tilt
>> angle, the backside of certain signs switches from
>> black to white.
>>
>
>
I'm speaking off the top of my head here ... does the specular component of
scene lighting depend on the view direction? At first thought, I don't
think it should, but I think (at least within flightgear) it may.
Is this a side effect of opengl's simplified lighting model and the fact
that changing view direction implies changing the projection plane? (i.e.
fog and aspect ratio of objects can change depending on what part of the
project plane they get projected.)
Just brain storming here about what might be worth looking into first ...
Regards,
Curt.
--
Curtis Olson: http://baron.flightgear.org/~curt/
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