Brightness/Contrast/Gamma Bug? HD/Reforged Graphics

[Gnuoy]

Players on my map that use HD/Reforged graphics keep reporting a strange brightness bug that comes and goes. some say it's random while others say it happens at noon (in-game time). Does anyone have any insight on this brightness bug or a solution to prevent it? Here's a screenshot from a one of the players just sent me (idk why he plays single player but beside the point) :

 

[AbsolutePsycho]

I suppose it could be caused by custom DNC (DayNightCycle) models. Or maybe they played some other map (just before yours), that uses those modified models, and later on your map it happens? Does it happen on first launch?

 

[Gnuoy]

It happens intermittently, seem like from noon to like 1600 hours in-game time. It happens later on, comes and goes depending on in-game time.

Edit: I don't think there's a custom DNC in this map???

Edit 2: I had "Use Terrain Fog" check, so i unchecked it, maybe it will help?

 

[AbsolutePsycho]

Edit: I don't think there's a custom DNC in this map???

In WE it's called "Custom Light Environment", do you have it enabled?

And do you have "imported" DNC models that replace those vanilla ones?

Also you can export "war3map.j", open it in notepad and find all calls to SetDayNightModels.
Normally, you would only have it here:

function main takes nothing returns nothing
	...
    call SetDayNightModels("Environment\\DNC\\DNCDalaran\\DNCDalaranTerrain\\DNCDalaranTerrain.mdl", "Environment\\DNC\\DNCDalaran\\DNCDalaranUnit\\DNCDalaranUnit.mdl")
	...
endfunction

 

[Gnuoy]

Does not seem like I have custom light environment enabled. (Although that dark night model looks pretty cool.)

Also I found this line of code in the J file:

[QUOTE]
call SetDayNightModels("Environment\\DNC\\DNCLordaeron\\DNCLordaeronTerrain\\DNCLordaeronTerrain.mdl", "Environment\\DNC\\DNCLordaeron\\DNCLordaeronUnit\\DNCLordaeronUnit.mdl")
[/QUOTE]

 

[AbsolutePsycho]

In that case, I think the root of the problem is outside of your map.

1. If you play another map and it uses imported DNC model, which replaces vanilla DNCLordaeronTerrain.mdl, and then play your map, it could be still used by the game. In earlier WC versions this for sure could happen with sounds, strings or textures, so this might be the same thing, but I've never tested this.

2. Some people have graphical problems with Reforged in general (for example, here), so it might be hardware/driver related...

 

[Gnuoy]

I just tested on HD/Reforged graphics and it seems to randomly adjust the brightness around 0603-0643, 0945, 1200, 1630-1635, in game time. I'm on Windows 10, Intel i7 4GHz, Nvidia 1070, 16 GB RAM, graphics drivers up to date.

If you want to see for yourself, here is the link, but not pressure to:https://drive.google.com/file/d/1pVZJ2NJXUZ2c5VNMOEOmFlWbU-2SB7eg/view?usp=sharing

 

[Dr Super Good]

Are the Reforged day/night models the same as classic? If not then it might be an issue with the Reforged version of a specific day/night model.

I do not know how Reforged handles lights but classic Warcraft III had a 8 light limit on any drawn mesh. It might be a bug relating to this causing meshes to have inappropriate lights applying to them, or perhaps as a no-light fall back to prevent black screens that plagued classic.

 

[AbsolutePsycho]

I can confirm that this happens, but usually when you see the whole map. This is an important detail that you omitted.


Wow, this is weird!

Upd:
So, the root of the problem is... Goblin Armory in the center of your map. The imported model somehow causes the bug. Anyway, just replace it with default one or some other model.

 

[Gnuoy]

Wow I really appreciate your investigation, @AbolutePsycho. Thank you!

You mean this model is causing the brightness bug on Reforged graphics: Goblin Outpost ??? What a shame because I like this model.

Also I can confirm it happens without the entire map revealed.

 

[Dr Super Good]

If it is a custom model it is possible it could be fixable. I would suggest using Retera Model Studio to poke at it and see if it has any lights as that would be the most likely cause in my opinion.