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#3265101 - 04/09/11 04:47 PM Performance improvement mods (Low clouds/smoke/grass/shadow, no mipmaps, etc) ****  
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Kegetys Offline
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I made a few mods that hopefully improve the game performance a bit. To use them, you'll need to install my sfsMod first, which I also just updated to work with IL2COD v1.00.13954 and up. Get it from: http://www.kegetys.net/misc (Read the readme!)

The mods themselves are:

- Low clouds/smoke/grass/shadows mods: These mods simplify the clouds, smoke, grass and shadows rendering for some FPS improvements. Download from: http://junk.kegetys.net/lowcgsmod.zip


- A low resolution textures mod. This mod will reduce the sizes of some of the DDS files in the game which have some quite crazy sizes*. It doesn't have a huge effect, but it can help a bit for the stuttering if running on a video card without much video memory. Download from: http://junk.kegetys.net/xzy/lowtex.7z (With sfsMod installed, use -mod=lowtex to use it. Use 7zip to extact.) In latest IL2COD version you can also use the new video options setting for similar effect.


- noSSAO mod. This mod will disable the SSAO effect from the game. This effect seems to have a big impact on framerate, with minimal(if any) effect on visual appearance. Especially when playing in higher resolutions disabling it can almost double the framerate, though it doesn't help for the stuttering. Download from: http://junk.kegetys.net/nossao_mod.zip (With sfsMod installed, use -mod=nossao to use it) no longer required for latest IL2COD version


- No mipmaps mod. This mod will disable the use of mipmaps from all materials used by the game. This seems to help alot to the constant stuttering the game has. An unfortunate side effect is that the textures will get an extremely aliased / "shimmering" appearance. But at least for me it makes the game perfectly playable everywhere... This makes me believe there is some very serious bug with the management of textures in the engine, it is constantly shuffling high and low detail mipmaps to the video memory which is causing the stuttering. And when the mipmaps are disabled there is nothing to shuffle. Download from: http://junk.kegetys.net/nomipmaps_mod.zip (With sfsMod installed, use -mod=nomipmaps to use it)


* By default there is, for example, two 4096x4096 textures for the pilot textures, uncompressed ~20MB normal map texture for the buckingham palace, uncompressed ~20MB normal map texture for some small ship, etc... The engine should be smart enough not to load these at full resolution unless they're needed, but reducing the sizes can apparently help a bit anyway. The mod also reduces some other textures, if you want you can delete some of them manually to use the full resolution ones instead (ie. from lowtex\$bob\3do\Plane).

A "quick start" guide for the nossao mod: (Read the sfsmod readme for more detailed instructions + FAQ!)
- Download the sfsMod v1.1 and extract the kegetys.dll into your IL2COD dir
- Edit the Launcher.exe.config file and add kegetys.dll there similar to steam_api.dll
- Download the nossao mod and extract it to your IL2COD dir too
- Create a shortcut to launcher.exe and add -mod=nossao parameter to it

You can also add the parameters (like -mod=nossao) from Steam by right clicking on the game, select properties and "set launch options" from general tab.

Last edited by Kegetys; 04/19/11 03:06 PM.
Inline advert (2nd and 3rd post)

#3265106 - 04/09/11 04:56 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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Sakai73 Offline
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on your six
Can confirm fps rise with this as was beta tester wink On Bomber Interception over channel my fps was 50 without this at beginning and with this 69, so go ahead and try it folks smile


Speed is life
#3265107 - 04/09/11 04:58 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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rkirk77 Offline
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Have you posted this on the Ubisoft Il2 site? It might be helpful for the team to know so they can come up with a fix for the game?

PS, the textures are THAT BIG??

#3265111 - 04/09/11 05:02 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: rkirk77]  
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Kankkis Offline
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Bananaforum too.

#3265115 - 04/09/11 05:05 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: rkirk77]  
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Kegetys Offline
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Originally Posted By: rkirk77
Have you posted this on the Ubisoft Il2 site? It might be helpful for the team to know so they can come up with a fix for the game?


I'd post it on the 1C forum where the devs seem to loiter, but as it seems every thread even hinting for some problems with the game are deleted, I'm not going to bother. smile

Originally Posted By: rkirk77
PS, the textures are THAT BIG??


Yeah (That's just the diffuse map converted from DDS to jpeg, theres also a normal map of the same size). You can see them yourself if you run the sfsmod with -dump parameter and then look at the DDS files extracted to _dump dir.

Last edited by Kegetys; 04/09/11 05:06 PM.
#3265124 - 04/09/11 05:14 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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rkirk77 Offline
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I am sure it's just their way of saying thank you! lol

PS, i do some 3d modeling.. that file needs to be either compressed or brought down by HALF!

#3265136 - 04/09/11 05:25 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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MIG77 Offline
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Tested it and can now confirm this really helps in FPS (I can get over 30fps now over London). Micro stutter are still there tought. But overall very helpfull mod.


You can get used to everything, but icicle in the a**. It melts before you get used to it.
#3265139 - 04/09/11 05:28 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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FearlessFrog Offline
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Thanks for doing this Kegetys - will check it out.

#3265152 - 04/09/11 05:46 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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hata Offline
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Thanks Kegetys, your works have always been amazing. Hopefully it will lead the developer to the right direction on optimization.

#3265172 - 04/09/11 06:11 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  

**DONOTDELETE**
Unregistered
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Unregistered


I prefer my Shift Delete optimization.

#3265218 - 04/09/11 06:58 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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Vipes Offline
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Followed the instructions to the letter and used both Lowtex and NoSSAO and well this has the been the biggest boost ever with no loss from what i can tell in eyecandy! Muchos Gracias mate. Beta patch no improvement over release, steam patch big improvement but this..... game changer for me.

Flying over land is much better and actually playable from the cockpit now albeit a few minor stutters. Can do big engagements over sea and over land now. Wow.

System is E8500 Core 2 Duo, Win7 64bit, ATI HD4800 and 8Gb Ram

#3265221 - 04/09/11 07:01 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Anonymous]  
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Dick Dastardly Offline
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Originally Posted By: flyinfoofighter
I prefer my Shift Delete optimization.


Silly your supposed to do that on a file not yourself


Suicide is man's way of telling god "You can't fire me, I quit!"
#3265226 - 04/09/11 07:06 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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Para_Bellum Offline
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I tested the noSSAO mod and in my standard test flight (freeflight over France) got ~20% higher average FPS @1920x180 resolution, while not noticing any loss in Image quality. Average FPS increased from ~24 to ~28.

Thanks!


"...late afternoon the Air Tasking Order came in [and] we found the A-10 part and we said, "We are going where!? We are doing what!?"

Capt. Todd Sheehy, Hog pilot, on receiving orders during Operation Desert Storm

#3265236 - 04/09/11 07:24 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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2005AD Offline
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Thanks for posting this and doing this for us, I noticed a decent improvement in FPS with the nossao of 20%, great mod.

When I use the lowtex mod it gives a large dark circle under the player aircraft. I have attached a screenshot.



I am using a HD6970 with 11.4 preview drivers.
Windows 7 64 bit.


#3265251 - 04/09/11 07:52 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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TheGrunt Offline
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I also installed SSAO mod and it seems to be working great: couldn't tell the visual difference from original with SSAO and FPS was clearly higher and more constant at least based on quick testing. Game is definitely better with mod what it comes to performance, although FPS was already okay for me especially after the patch. Yes, stutters are there, but this is a clearly a must mod for everyone at least so far game is repaired by developers. Now similar solution to stutters and we are there cheers

My rig:
i7 920@3,92GHz
6GB
GTX480@800,1600,2000
Vista 64-bit

Last edited by TheGrunt; 04/09/11 07:52 PM.

"It felt as if angels were pushing."
- Adolf Galland after his first flight with Me 262 prototype
#3265257 - 04/09/11 08:09 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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Yes, another confirm - the SSAO off is now nicer, just did the Blenheim quick mission and certainly felt better (getting tired of staring at a FPS counter). Land, grass all high on a mid-range Q6600@3.6 ATI4890 1G and it's very playable.

Thanks, and keep em coming!

#3265259 - 04/09/11 08:11 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: 2005AD]  
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FearlessFrog Offline
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Are you sure that's not a cloud overhead 2005AD? The shadow looks familiar.

#3265263 - 04/09/11 08:14 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: FearlessFrog]  
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2005AD Offline
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Originally Posted By: FearlessFrog
Are you sure that's not a cloud overhead 2005AD? The shadow looks familiar.


First thing I checked, no clouds overhead and it happens with all aircraft.

#3265269 - 04/09/11 08:19 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: 2005AD]  
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FearlessFrog Offline
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Originally Posted By: 2005AD
Originally Posted By: FearlessFrog
Are you sure that's not a cloud overhead 2005AD? The shadow looks familiar.


First thing I checked, no clouds overhead and it happens with all aircraft.


Fair enough, and on retrospect not a great question as I knew you'd check smile

I don't have that bug - maybe clear out the cache directory just in case? There seems to be a bunch of prebuilt DDS's in there doing something or another.

#3265286 - 04/09/11 08:39 PM Re: Performance improvement mod(s) (no SSAO and lower detail textures) [Re: Kegetys]  
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Shado Offline
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OMG Kegetys, you done it again, thank you, at last we are getting close. clapping


If life is one big joke.......I just don't get it
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