I have a request to aircraft developers.

I was trying the DR400 yesterday, and I liked the plane as such quite well - 
but the canopy glass effect spoiled all my fun. The reflection effects are just 
way too strong. I have a similar problem with the cockpit windows of the CRJ700 
which also dull the colors of the environment rather strongly.

I would ask that such effects are implemented optionally. I would like to get 
the direct view outside without any glass effect. I was seriously tempted to 
open ac3d and simply remove the offending window...

The reason for this has to do with perception: Glass may be dirty and have lots 
of reflections, but we don't actually 'see' that. When looking through a 
window, the eyes are focused for distance, whereas the glass stains and 
reflections are near, so they create blurred images on the retina with 
different depth information (i.e. different apparent locations in both eyes). 
As a result, unless the window is very dirty, the visual processing in the 
brain removes dirt and reflections very efficiently - in essence we are able to 
look 'through' the dirt.

Now, when a realistic amount of dirt and reflections is rendered in front of 
the outside scene on a flat screen, the brain lacks the depth information and 
the eyes always focus on the screen, and  as a result perception can not do 
this trick. So a seemingly realistic amount of reflection on-screen end up 
simulating a very dirty and distorting glass which I would never fly with in 
the first place - I'd clean my cockpit window before takeoff.

So if implemented at all, I think the effect has to be very subtle, and in my 
opinion only a minority of planes get this 'right'. Thus, please consider it 
good practice to allow people to clean their windows and switch all glass 
effects off.

Thanks,

* Thorsten
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