On Thu, Mar 11, 2010 at 10:26 PM, John Denker <j...@av8n.com> wrote:
...
>
> Change the view angle, either by pitching the entire aircraft
> or by simply tilting the pilot's view angle relative to the
> aircraft.
>
> What is the expected output?
>
> Scenery should not change. The ray from each object to the
> camera image plane should stay the same, except to move to
> a different point in the image plane, when the camera is
> tilted.
>
> What do you see instead?
>
> For some tilt angles, the taxiway signs alongside taxiway
> charlie are dark, while at other title angles they are
> lit.
> http://www.av8n.com/fly/fgfs/img48/taxi-signs-off.png
> http://www.av8n.com/fly/fgfs/img48/taxi-signs-on.png
>
> I cannot imagine what could be causing this.
>
> The mesh representing the back of a sign is not complete; graphics state
from other parts of the scenery are leaking into it. The particular effect
depends on the global draw order, which does change as your viewing angle
changes.
I don't know why this ever worked. What color are the sign backs supposed to
be?
Tim
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