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Thread: ArmA 2 - Optimised Graphic Settings

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    Sheffield's no.1 nerdologist cptwhite_uk's Avatar
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    ArmA 2 - Optimised Graphic Settings

    So what settings are people using, and what effects do all the options have on the graphics?

    Using a Sapphire HD4870 512Mb at stock clocks and the latest catalyst 9.6 drivers and ATI Tray Tools 1.6 beta.

    So far after minimal tweaking I've done the following:

    Post process: OFF
    To me this just adds unnecessary blurry-ness to the game, some of the effects I would like to like to keep (high dynamic range for example) so I need to edit this in a config file hopefully. Motion blur is a pain in the ass. It also interfers with the effectiveness of AA from my initial testing.

    Anti-aliasing: HIGH
    In-game AA does work for models, but not on textures with an alpha layer. This really pisses me off, are the graphic artists and programmers that inept!? It was done properly in BF1942 for god's sake (but not BF2 laughably), yet modern games can't do it?!? I've not tried forcing AA in the driver settings yet which should allow sort this. The correct method though would be to edit the alpha layer of the games texture files, which I might experiement with if they're accessible and editable.

    I will add my thoughts as I do more testing. Good guide here http://www.pcgameshardware.com/aid,6...actice/?page=2

    Post your own thoughts for optimising the game

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    Va Va Voom Lowe's Avatar
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    Re: ArmA 2 - Optimised Graphic Settings

    Few command line tweaks shamelessly ripped off the BIS Forums.

    -winxp : Use it in Vista/W7 to enable multi-GPU support, will disable use of D3D9Ex (a special Vista only D3D9 version)

    -nosplash : Skip splash screens

    -world=empty : Doesn't load as much for menu, starts faster

    -maxmem=2047 : Allows game engine to use more RAM (2047 is hardcoded maximum atm, anything higher falls back to 2047).

    -window : Windowed mode

    -noCB : Turns off multicore drawing, slow down rendering but may resolve visual glitches

    -cpuCount=X : Change X to a number equal or less than numbers of available cores. (2 seems to have the best results....even on quads!)

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    Va Va Voom Lowe's Avatar
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    Re: ArmA 2 - Optimised Graphic Settings

    Couple of other snippets:

    * Shadow setting 'Very High' usually offers better performance than 'High'
    * Video memory setting 'Default' uses the value in Arma2.cfg. 'Very High' is 512mb, therefore 'Default' will actually be higher if your card has more than 512mb vram.
    * Your terrain detail will automatically be lowered if Arma2 determines that you set your 'Visibility' too high.

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    Re: ArmA 2 - Optimised Graphic Settings

    Lowe,
    Sometimes setting stuff to high forces it to be done on the GPU rather than the CPU. If you have a powerful GPU, this can result in frame rate increases. Shadows is a particular example of this.

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    Re: ArmA 2 - Optimised Graphic Settings

    Lowe, can those command line tweaks not be added to a config instead?
    Quote Originally Posted by TAKTAK View Post
    It didn't fall off, it merely became insufficient at it's purpose and got a bit droopy...

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    Re: ArmA 2 - Optimised Graphic Settings

    Not as far as I know. Just add them to your shortcut.

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    Re: ArmA 2 - Optimised Graphic Settings

    Cheers for those tweaks will try them later

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    Re: ArmA 2 - Optimised Graphic Settings

    I assume

    Quote Originally Posted by Lowe
    -maxmem=2047 : Allows game engine to use more RAM (2047 is hardcoded maximum atm, anything higher falls back to 2047)
    Is for 64bit OS only, and it would only potentially crash 32bit OS's like mine.

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    Re: ArmA 2 - Optimised Graphic Settings

    Would someone please tell me how to add Lowe's commands to my shortcut?

    I have found Post Processing sucks too.
    I'm still getting De Sync every time I play too

    setoutyourstall.blogspot.co.uk

    Quote Originally Posted by Saracen View Post
    Delonghi gave me about 18 inches, which is not really enough

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    Re: ArmA 2 - Optimised Graphic Settings

    Quote Originally Posted by cptwhite_uk View Post
    I assume



    Is for 64bit OS only, and it would only potentially crash 32bit OS's like mine.
    Not that I'm aware of, it's a 32bit app after all, hence the 2gb limit?

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    Re: ArmA 2 - Optimised Graphic Settings

    Quote Originally Posted by Zak33 View Post
    Would someone please tell me how to add Lowe's commands to my shortcut?

    I have found Post Processing sucks too.
    I'm still getting De Sync every time I play too
    Right click the shortcut, properties, then add after arma2.exe

    Mine looks like:

    C:\Games\ArmA2\arma2.exe -nosplash -world=empty -maxmem=2047 -cpuCount=2

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    Re: ArmA 2 - Optimised Graphic Settings

    With regard to the -maxmem command and 32 bit OS. I thought 32bit OS were limited to 2Gb RAM per application (as a physical limitation of a 32bit OS). This was definitely true of Supreme Commander which would routinely crash if the 2Gb limit was hit on 80Km maps with masses of units.

    As far as I understand it, it's the OS not the app which causes the limit (although I might be wrong and both can be a limiting factor)?

    I would assume therefore the limit was put in place to specifically stop crashing in 32bit OS? I'm guessing here, but that does sound a plausible reason as it why it would even be there.

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    Re: ArmA 2 - Optimised Graphic Settings

    Mines pretty similar to Lowe's

    With a couple of nvidia specific tweaks, under ARMAII's profile in the control panel, change max pre-rendered frames to 8, gives a nice performance boost. Disabling PhysX helps too. Both from BI's forums.

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    Re: ArmA 2 - Optimised Graphic Settings

    The max prerender 8 is a must for anyone with an nvidia card

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    Re: ArmA 2 - Optimised Graphic Settings

    So I've optimised the setting to something I'm comfortable with for now. I seem to average in the low 40fps at base camp. Not sure when the action gets heavier, might have to turn off AA (which makes a BIG difference.... low aa = 45-47fps, no aa (off) = 55-57fps as a quick example)

    I have also enabled Adaptive AA using ATI Tray Tools 1.6 beta (go to tweaks > advanced tweaks > top option... deselect (no green square, or tick) > save

    then...

    go to 3d direct > adaptive anti-aliasing menu (it was hidden before going to advancved tweaks). Recommend performance adaptive AA, quality adaptive AA gives too much of a performance hit for me (but gives nicer results obviously )

    Here's ow the game looks with the settings shown on the second image.

    Note the grass. In the first image Adaptive AA is enabled, but in the second it isn't (grass is more pixelated)





    Note this still isn't the correct way to some alpha layered textures in the game. But until they release tools to open the proprietary .paa graphic files for the game I have no way of implementing smoother grass and tree textures. Look how alpha textures were used on Battlefield 1942...look how smooth and clean the trees look in these screenshots, and AA isn't even enabled in the second! The only reason they're slightly pixelated is because the textures themselves are low res (it's an old game) but this needn't be an issue for a modern game like ArmA 2


    Last edited by cptwhite_uk; 08-07-2009 at 09:37 PM.

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    Re: ArmA 2 - Optimised Graphic Settings

    Thanks for the info gents, very helpful

    Currently using the ATi 4870X2 and the motion blur / HDR lighting is terrible, in fact I wouldn't be exaggerating to say that it looks like some muppets smeared half a tub of Vaseline on the screen.

    Brilliant game though

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