This has worked for myself and my other friends who love the game as well.ĪNOTHER thing to do, if the game is constantly ticking, turn off Shadowplay, this being an old title, does not play nice with it.Īnd one last cosmetic touch, in the in-game settings, turn off texture fade if you haven't already (I know it's easy to rush through settings sometimes and just turn it all to on lol) this will stop that lame slow-load in of the full rez chest textures. Now it should run sweet with PhysX in all it's maximum goopy explody glory. Open your nVidia control panel, then go to the PhysX tab, ensure that you select your GPU as the PhysX processor, not the CPU or auto. Go to - C:\Users\*Username*\Documents\My games\Borderlands 2\WillowGame\Config - and open WillowEngine in notepad, then search for "bSmoothFrameRate" change it to FALSE.ĥ. nVidia worked with Gearbox to release this BL2 PhysX optimization patch, though it was never added to the required installation files either on Steam or physical GOTY copies, laziness I guess? Meh, sad, anyway, this CAN be installed alongside your existing PhysX drivers, no uninstallation or downgrade necessary: Ĥ. Download and install this nVidia PhysX driver. (Yes, I know, it's AMD, but just do it).ģ. Install (D:\Steam\steamapps\common\Borderlands 2\Binaries\Redist\AMD) - "amdcpusetup.exe" This tells the game how to correctly utilize multicore, remember, this was released when quad cores had barely been around for 2 years. (This step can be skipped for now, you may not need this). Install the Direct X in the BL2 folder (D:\Steam\steamapps\common\Borderlands 2\Binaries\Redist\DXRedistCutdown)Ģ. Though after just over a weeks research trawling through old threads from as far back as 2013, I have figured out the fix by putting all the little single tips for possible fixes together. Which angered me as I always loved this game and always wanted a PC powerful enough to run it in all it's PhysX glory. When I first played at max with PhysX max, yes it ran like crap, fine without PhysX. I have a 6700K and water cooled GTX1080 with 32GB RAM. Likely, they set their settings to max with physx on high and run around an open field with 1-2 enemies demoing. Yea, those people probably have not ever been in a heavy fire fight with 4x co-op players all shooting elemental weapons and spamming nades everywhere. I see some people claiming 60 fps with physx on high without the tweak For me MaxParticleResize=256 on a 3570K 4.4Ghz lets me maintain 60fps for the most part in really heavy combat fights. MaxParticleResize=1024 might be too much for you to handle. MaxParticleResize=1 will give you amazing FPS, but you won't see any bullets or projectile effects. You will need to experiment with what value works best. Lots of elemental effects, bullets and projectiles from multiple enemies and players all needing physx processing.Ĭhanging MaxParticleResize value to something besides zero reduces the amount of particles that need to be processed. This is will cause your CPU to fall to it's knee in heavy combat. The default is MaxParticleResize=0 which basically means unlimited amounts. MaxParticleResize is the max number of particles generated in BL. How does tweaking MaxParticleResize help? When you look at utilization numbers those are averages over a span of time not the instantaneous demand. Individual cores will unlikely show full use either because the main thread bounce around different cores. You won't see 100% utilization because the game doesn't take full advantage of all the cores. My cpu utilization is never 100% neither is any of my cores Even modern high end processor isn't enough. Sadly, Physx in BL2 is heavily dependent on single-thread processing power. All those tiny particles and effects all has to be kept track of and fed to the physx engine.īut, I have the newest CPU with X number of cores With physx enabled, especially on high, there is a lot more work for the CPU. Yes, Physx is processed by the GPU, but it still needs the CPU to feed it data. Huh? Isn't hardware physx done by the GPU? Why is cpu bottleneck the issue? I got a powerful GPU, why does physx on high drop my fps so much.
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