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levitatingcups

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  1. levitatingcups

    Radiosound + Mouse Lag Problem

    ok, im trying to come up with possible culprits for this particular problem, which for me is atleast unbearable, so far i've come up with a technical approach which is simplified to 5 main steps: (this model might be flawed) 1) mouse is moved, it takes certain amount of time for the mouse to send this info: cause/fix: bad mouse 2) hardware processes mouse movement: most likely cause/fix: could be that mouse requires special drivers mouse smooth turned on in operating system really weird motherboard 3) data is sent to the game which translates the mouse movement for visuals: cause/fix: program for the drives could require higher priority game can have special processing(weight simulation, anyone?) 4) it takes time for the images to be drawn by the gpu(s), it also takes time to fill any possible frame queue(s): cause/fix: reducing resolution forcing max pre-rendered frames as low as possible turning off v-sync turning off aa, af, bloom, hdr, any other 'eye-candy' game does not support the current version of drivers of current video card(to a certain extent) 5) display draws the picture: cause/fix: lcds can cause lag, if the signal sent to monitor is not in native resolution, itll usually go through filters to scale it up. lcds also sometimes have special filters to remove jaggedness, which might require multiple frame samples. older lcd displays have noticeable white-to-black of 20ms or more. however, through logic, one should be able to rule out the possible causes: 1) change mouse and its settings, (windows sensitivity, if mouse has adjustable dpi change that), which i've done. 1 out of 4 mice (labtec crap-laser) introduced a slight increase in the latency, in all 3d applications, but not in windows, weird. 2) current mouse (rapier v2) does not require any special software, but i have a gaming software kit with it,no difference without the kit, and with the kit i've increased usb sampling rate to 1000hz without noticeable effects (in any 3d app). 3) changing priority of arma2 did not seem to have noticeable effects after other optimization, as for the mouse software, its not required to be on for it to have effects, even with it on and higher/lower priority, no effects. game post-processing is hard to test for, as i dont multiple pc's to test this on, so ill keep the option open for now. 4) turning off eye-candy(aa,af,etc) in the game has increased my fps, so i cannot be sure if its just the game related mouse post-processing, however in other 3d applications eye-candies did not seem to introduce noticeable latency, as long as they were not turned on to maximum(which was also good fps killer), lowering resolution of the 3d view of the game itself gave noticeable fps boost, and decreased the mouse lag. maximum pre-rendered frames set to 1 (0 causes crash), had noticeable mouse lag reduction in hl1 and arma2, but not in other 3d apps. the latest nvidia drivers and the latest omega drivers didnt seem to have difference towards the mouse-lag issue. 5) my current b-grade lcd (benq t221wa) has different modes for it, movie, gaming, general, however changing these modes in any 3d application did not seem to have any noticeable mouse-lag related results, and as i do not have other monitors to test with(just for the game), i cant be certain about this one, however other 3d applications do not manifest this mouse-lag so im quite confident that its not the monitor. my only reasonable conclusion can be that the cause is arma 2's fps-based mouse post-processing feature, which might be totally wrong too. if anyone else comes up with stuff to include in this list of possible causes and fixes, send pm and ill update it, also i'd like some other test results from people who are able to test these out(along with their conclusions). ps. game can be any program, but in this case its arma 2 pss. any 3d application stands for following games: rainbow six vegas 2, arma 2, battlefield2 mod project reality, half-life 1 deathmatch and killing floor. psss. testing demo, not buying full game cause demo it not playable(atleast not with any joy). quick system specs: cpu: amd 64x2 +5200 mobo: MSI K8N Neo-V2 memory: 4 gigs of corsair vid card: gts8800 oc edition (320mb) edit: options menu mouse does not lag, shame, its the game i've always wanted
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