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The landing strip lights are barely visible ...

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Re: The landing strip lights are barely visible ...

Postby WoodSTokk » Sun Sep 08, 2019 8:28 am

@V12:
The scenery of EDDF you are using has the multiple light problem. You can clearly see that the green and specially the blue lights on the west side (up) are much more brighter then on the eas side (bottom).
The tool chain for generating airfields has a problem with that lights. It place it multiple times. I found that problem also on LOWW (up to 17 light points on one location) and KSFO (with more then 20 light points on one location).
If you want test on an airfield with fixed lights, download Goose Bay (CYYR) from here:

http://lepanto.at/download/flightgear/CYYR/CYYR.btg.gz
http://lepanto.at/download/flightgear/CYYR/1958866.btg.gz

This files are the output of my btgchk tool. As far as i remember my tool delete multiple lights.
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Re: The landing strip lights are barely visible ...

Postby V12 » Sun Sep 08, 2019 9:59 am

Thank You for explanation, will test this new light scheme.
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Re: The landing strip lights are barely visible ...

Postby statto » Tue Sep 10, 2019 10:52 pm

Based on my recent real life night flights, I don't see anything inherently wrong with any of the screenshots here.
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Re: The landing strip lights are barely visible ...

Postby abassign » Wed Sep 11, 2019 10:53 pm

statto wrote in Tue Sep 10, 2019 10:52 pm:Based on my recent real life night flights, I don't see anything inherently wrong with any of the screenshots here.


Interesting, but in my experience it is not. I would like to see examples, or images, this would help to understand better.
However, as already analyzed in the previous posts, the problem is not the point lights, which seem to me to follow a rule according to the angle of view, but the problem seems to me to be the lack of halos and reflections on the track that are always present and they allow to distinguish the lights at high angles (40-90 deg) even if with a reduced intensity
As you can see, in FGFS, if the lights disappear completely over the airport, which I never checked on night flights. Furthermore the PAPI are simple spirits and give an effect of "rising sun" with a halo that is absolutely false, I do not think that it takes much work to make a 3D model of the PAPI (if you want I do it willingly!).
If you look at the video the lights disappear as if a knife cut off the sliced track, in reality, there is a gradual attenuation, but not a disappearance.
When landing, the downhill path in front of the landing strip is hardly visible, while in reality you can always see these lights very well, even during the day, as those lights are much more intense and directed.

I think that not all airports have the same level of lighting, but no airport seems to me so "dark" as those that FGFS has been reproducing in recent years.

The problem may be due to various reasons ...

A different perception of myself (and others) in the brightness of a scene, as in the type of video used by the observer of the simulation. This was the reason why in the G91R1B I introduced the possibility of varying the brightness and reflectivity parameters of the livery. My surprise was great when I discovered that many pilots send me pictures of the G91R1B liveries with strong variations in these parameters. A clear sign that everyone sees reality differently.

I think it would be a good thing to allow everyone to vary some basic parameters, such as those for airport runway lighting, so that they can be adapted to their explicit feeling and display system.

I always remember with pleasure the old lights used in the LOWI scenario, lights that unfortunately are no longer usable. They were well-made lights and very close to the ones I had actually observed in reality.
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