57 minutes ago, MrBitstFlyer said:

Oh boy, an absolute game changer - thank you for linking to this script! 😮👍

I love the haze in XP12, but this script allows very subtle changes to the haze.  Exactly what I thought XP12 needed - just a slight reduction over what XP12 injects is perfection!

What settings did you settle on? 

2 hours ago, Ianrivaldosmith said:

What settings did you settle on? 

So far I have just changed the main top setting to 1.5 which seems to reduce the haze sufficiently.  Not sure what the next two settings are yet.

2 hours ago, MrBitstFlyer said:

So far I have just changed the main top setting to 1.5 which seems to reduce the haze sufficiently.  Not sure what the next two settings are yet.

The other two settings appear to reduce the haze close to the aircraft.

The other two parameters I recommend adjusting at sunset. This way you will see how they work. 😉

9 hours ago, efis007 said:

The other two parameters I recommend adjusting at sunset. This way you will see how they work. 😉

So You think that 1.3 and 1.0 and 1.0 is the best to use? 

Edited June 8, 2025Jun 8 by Ianrivaldosmith

The plugin allows for a lot of customization, there is no single setting that everyone likes, so I invite you to experiment with the values that you prefer for your aesthetic taste.
Tip: when moving the sliders to customize your favorite environment/fog do not just keep XP12 always in "day" mode, but also use the "sunrise/sunset" mode to see how the movement of the 3 sliders affects the colors of the sunset.

On 6/7/2025 at 4:27 PM, efis007 said:

I solved the problem of excessive haze with the plugin HazeAdjust.lua

https://forums.x-plane.org/files/file/85631-hazeadjust-bloom/

My settings: 1.3 - 1.0 - 1.0

This script changes the following datarefs (in case anybody wants to play around in DataRefTool first):

sim/private/controls/scattering/override_turbidity_t
sim/private/controls/scattering/single_rat
sim/private/controls/scattering/multi_rat

If you value XP's shaders, do not set the turbidity value close to zero. And note that overriding turbidity may yield visual bugs in distant autogen objects in low visbility conditions. Stay away from multi_rat as this will take out a lot of lightness in overcast conditions. Cutting single_rat by 50% will make the overall scene colder, with less light getting scattered by aerosols. So I'd adjst that one, if anything.

2 hours ago, Bjoern said:

This script changes the following datarefs (in case anybody wants to play around in DataRefTool first):

sim/private/controls/scattering/override_turbidity_t
sim/private/controls/scattering/single_rat
sim/private/controls/scattering/multi_rat

If you value XP's shaders, do not set the turbidity value close to zero. And note that overriding turbidity may yield visual bugs in distant autogen objects in low visbility conditions. Stay away from multi_rat as this will take out a lot of lightness in overcast conditions. Cutting single_rat by 50% will make the overall scene colder, with less light getting scattered by aerosols. So I'd adjst that one, if anything.

Thanks for that.  I have left single and multi to their default value of 1 (the script has set that so I assume that is XP12's default).  I have found setting Turbidity to 1.7, so just slightly lower than default.  I wouldn't want turbidity to near zero as I would then have MSFS 😁

9 hours ago, Ianrivaldosmith said:

So You think that 1.3 and 1.0 and 1.0 is the best to use? 

I have settled on 1.7 for Turbidity as I feel the haze is reduced too much below that.  I have left the other slider at 1 - I wonder if 2/1/1 are the defaults in XP12?

31 minutes ago, MrBitstFlyer said:

Thanks for that.  I have left single and multi to their default value of 1 (the script has set that so I assume that is XP12's default).  I have found setting Turbidity to 1.7, so just slightly lower than default.  I wouldn't want turbidity to near zero as I would then have MSFS 😁

Single_rat's default is 1, multi_rat's is 1.25 and override_turbidity_t's is (obviously) 0 as it's an override. Before you settle on a particular value for real, you should test it in a variety of lighting and weather conditions to see if anything got broken. Overrides replace dynamic calculations done by X-Plane with user calculated (or fixed) values and thus are more prone to break things than simply altering a scalar.

As usual, also note that your X-Plane warranty (as in: right to issue bug reports or complaints about visual artifacts) is void while the tweak is applied. 🙂

Edited June 8, 2025Jun 8 by Bjoern

I am almost lost for words - a very small tweak of the haze with HazeAdjust Lua script with these settings.

Turbidity - 2.0
Single - 1.0
Multi - 1.5

I am on my PC looking at reality on my screen. 😮  Seriously, MSFS cannot compete with this!  Graphics like this with aircraft that feel so natural is a dream come true.  I have only been using XP12 for two weeks - day one I almost uninstalled it after seeing what the UK looked like with a default install, but now I am grinning ear to ear 😁😎

 

Wow I understand your feeling. This is really beautiful !

One question though: aren't these parameters supposed to be set by the real-weather itself, normally ?

I mean, these parameters will impact the amount of haze/mist etc... in the atmosphere. If I alter them to make them look better for my taste, am I not ending with something that doesn't match the real weather anymore ?

Or are these some global parameters that will not prevent variations brought by the real weather ? Sorry if it makes little sense... 😕

32 minutes ago, Daube said:

Or are these some global parameters that will not prevent variations brought by the real weather ? Sorry if it makes little sense... 😕

I assumed this script is an adjustment to what real world weather reports as you fly, rather than a fixed amount of haze.  Perhaps someone with knowledge of these datarefs could comment?

Edited June 9, 2025Jun 9 by MrBitstFlyer

On 6/8/2025 at 7:02 PM, Bjoern said:

This script changes the following datarefs (in case anybody wants to play around in DataRefTool first):

sim/private/controls/scattering/override_turbidity_t
sim/private/controls/scattering/single_rat
sim/private/controls/scattering/multi_rat

If you value XP's shaders, do not set the turbidity value close to zero. And note that overriding turbidity may yield visual bugs in distant autogen objects in low visbility conditions. Stay away from multi_rat as this will take out a lot of lightness in overcast conditions. Cutting single_rat by 50% will make the overall scene colder, with less light getting scattered by aerosols. So I'd adjst that one, if anything.

Turbidity should never be less than one as it's defined as the ratio of extinction coefficient of the currently being rendered atmosphere to the extinction coefficient of a clean (Rayleigh) atmosphere. So a turbidity of one is the maximum visibility / minimum pollution.

Edited June 9, 2025Jun 9 by Maya2

2 hours ago, Daube said:

Wow I understand your feeling. This is really beautiful !

One question though: aren't these parameters supposed to be set by the real-weather itself, normally ?

I mean, these parameters will impact the amount of haze/mist etc... in the atmosphere. If I alter them to make them look better for my taste, am I not ending with something that doesn't match the real weather anymore ?

Or are these some global parameters that will not prevent variations brought by the real weather ? Sorry if it makes little sense... 😕

The single and multi rat are constants of the atmosphere and they never change based on conditions.

The turbidity is set by the weather engine, as it controls the haze amount. Overriding turbidity will indeed prevent variations of haze brought by real weather.

Edited June 9, 2025Jun 9 by Maya2