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[SAS~Storebror]

Cheers folks!

Many of our fellow AMD graphics card users lately fell victim to the new "optimized" OpenGL implementation which AMD introduced more than a year ago.
To cut the long story short, newer AMD drivers and their new OpenGL code cause massive issues with quite a few older games, including - unfortunately - IL-2.
The only way out is to roll back and stick to a driver version prior to the OpenGL "optimization".

That being said, the relevant driver releases are...

22.5.1: https://www.amd.com/en/support/kb/release-notes/rn-rad-win-22-5-1
22.5.2: https://www.amd.com/en/support/kb/release-notes/rn-rad-win-22-5-2
22.6.1: https://www.amd.com/en/support/kb/release-notes/rn-rad-win-22-6-1

Anything past the above-mentioned driver versions (i.e. 22.7.1 or newer) has the new "optimized" OpenGL included and therefore will not work well with IL-2.

Among the three drivers listed above, the differences are:
22.5.1: Last driver before the DirectX-11 code was rewritten by AMD
22.5.2: Last official driver with "old" OpenGL code - contains updated DirectX-11 code which causes issues with a couple of old games (IL-2 not affected here).
22.6.1: Notebook reference driver. Should not have been used "in the wild" in the first place, nevertheless it's the last driver officially not equipped with the full set of OpenGL optimizations. YMMV.

Depending on whether you rather play older or newer DirectX-11 games, either 22.5.1 (older games) or 22.5.2 (newer games) is the best choice.
22.6.1 is for tech-savvy people who are ready to perform another rollback only,.


Mike

[WhiteSnake1976]

I got no problem so far with the latest drivers 23.8.1 (Windows 10) on a RX7900XTX with IL-2 FB and Ultrapack.

How ever i did get exactly this with my previous RX6700XT: https://www.sas1946.com/main/index.php/topic,71215.0.html

Edit: I already had made minor changes that i knew out of my head to the Conf.ini file and everything looked fine, but after making more changes to the Conf.ini file (basicly i copied my old Conf.ini OpenGL section) the squares on the ground came back.
So i look into that if i have some time, probably gonna be changing line by line to see wich one causes it.

Good news is with the original changes i made the game looks great in 3840x2160 and there are no glitches, sadly i made a guide somewhere on the Conf.ini OpenGL settings but cant find it, all the ones i can find are not as detailed on what the settings do exactly

[WhiteSnake1976]

I am unable to find the guide i made for the Conf.ini, it was on battle-fields.com but that site no longer exists

Most of the AMD users are probably using my AMD/ATI Conf.ini settings wich are posted/linked on various forums, so i am reviewing these to see if i can fix the OpenGL graphics isues.

So far so good, put a couple of hours into the Conf.ini OpenGL section and i am not getting the graphics problems, as soon if i am sure the new Conf.ini settings are good with no negative effects on graphics quality compaired to the old i post them on the the forum together with the Radeon/Adrenalin Edition settings.

[Frankiek]

You may already know these threads I am linking as they may help you in rebuilding your conf.ini guide for ATI users

https://www.sas1946.com/main/index.php?topic=9756.0

https://www.sas1946.com/main/index.php/topic,2497.240.html

While struggling with ATI drivers for my winxp setup I found out that they are also quite sensitive to the different IL2_core.dll so you may want to give a try to that as well.

[SAS~Storebror]

Perfect Mode AMD OpenGL settings are in this post:
https://www.sas1946.com/main/index.php/topic,9756.msg185327.html#msg185327

And just for reference, in case someone stumbles around here looking for DirectX settings, the best/utmost you get is in this post:
https://www.sas1946.com/main/index.php/topic,9756.msg632271.html#msg632271


Mike

[WhiteSnake1976]

Using those Conf.ini settings causes glitches with my AMD card and the latest drivers, i got rid of the ground/water square glitches by changing TexFlags.DrawLandByTriangles=0 to 1

Dont want to go back to older drivers since i am running the latest games also, so i am trying to fix it with the current drivers.
(Even if i wanted, i can not go back to the drivers you recommended as they do not support the Radeon RX 7000 series)

Making progress but inside the Conf.ini it keeps setting HardwareShaders=0 after i launch the game.

Also the clouds looks like theres shards inside them (had that before with old card and old drivers also) tried messing with TypeClouds=0 or 1 but it doesnt seem to change anything, dont want to use IL2GE yet as it might make things even harder to sort out, for example it needs vertexarrays to be enabled, while AMD cards dont like that.

[WhiteSnake1976]

Under DirectX the game seems to look a bit beter, especialy the terain (almost like the card is forcing teselation)

I wanted to make a screenshot comparison, But in 4K both OpenGL and DirectX screenshots seem corrupted... thats why i tried 1080p, but than the DirectX screenshot can not be opened while the OpenGL screenshot is fine.

Does anyone know why and how to fix this?

[SAS~Storebror]

"Can not be opened" means "cannot be created" or "gets created, but windows can't show it"?
Do you have the screenshots at hand? Maybe upload them to Mediafire so we can check them.
Anything in the logs?
IL-2 log, Windows Event log, anything...


Mike

[WhiteSnake1976]

It creates the screenshot files but i can not open them, both JPG and TGA as if there corrupted wen made in DirectX mode.

There is nothing weird in the log files, no errors wen making the screenshots.

[Frankiek]

Using those Conf.ini settings causes glitches with my AMD card and the latest drivers, i got rid of the ground/water square glitches by changing TexFlags.DrawLandByTriangles=0 to 1

Dont want to go back to older drivers since i am running the latest games also, so i am trying to fix it with the current drivers.
(Even if i wanted, i can not go back to the drivers you recommended as they do not support the Radeon RX 7000 series)

Making progress but inside the Conf.ini it keeps setting HardwareShaders=0 after i launch the game.

Also the clouds looks like theres shards inside them (had that before with old card and old drivers also) tried messing with TypeClouds=0 or 1 but it doesnt seem to change anything, dont want to use IL2GE yet as it might make things even harder to sort out, for example it needs vertexarrays to be enabled, while AMD cards dont like that.

I tried TexFlags.DrawLandByTriangles=1 in my Windows XP setup and it helps with the old game versions before 4.07 where I can't use perfect mode but all the other settings can be maximized without the nasty polygons over sea and land thank you for the hint.

Clouds shreds and cloud black spots are usually (but not always) linked to HardwareShaders=0

I don't think that you have much options with the latest drivers as they are not compatible with perfect mode but you will face similar problems with directx that also can't support perfect mode.

In any case this is the history between AMD drivers and IL-2 and that is why on my laptop I decided to go with GeForce

[SAS~Storebror]

It creates the screenshot files but i can not open them, both JPG and TGA as if there corrupted

Would love to take a look at the files myself.

[WhiteSnake1976]

It creates the screenshot files but i can not open them, both JPG and TGA as if there corrupted

Would love to take a look at the files myself.

https://mega.nz/#fm/nzowwDJZ

Looking at the file sizes there empty files