connetion between DPI and acceleration

some say acceleration cant be removed, some say its better to use lower DPI for lower acceleration, but are there any proof its the right thing to do? some benchmark or test?
Comments
31
its the right thing to do.
ok, you just made this sentence officialy proof, congratz. :-)
Parent
ofc you can turn acceleration off, who told you that?
i think he means neg accel ;_;
Parent
uuupez, hangover fail.
Parent
he didnt exactly make it obvious :|
Parent
lower DPI is just lower accuracy and sens

higher DPI then 800 gives neg accel for most

Acceleration can be disabled tbh
Lower accuracy?
Parent
euh lower pixel per blablab , eh , you know what i mean
Parent
I have higher dpi
Parent
high dpi, low fps, theres a lot of reasons for negative accel. Go into ET, aim at a spot and go with ur mouse to the right as fast as possible. Now move the mouse back slowly and see if the crosshair is back on the same spot.

If you do this correctly you'll see wether you got positive or negative accel. pos accel got to do with windowssettings, neg accel you prolly want to lower the dpi on your mouse (or lower windows sensitivity, but you better change dpi if you can)
Here's my opinion: I don't quite understand it myself, so feel free to correct me.

The more DPI the more information gets captured by the sensor . If you have a 8bit mouse @ 125Hz and with 2000DPI, it will give you negative accel, because the sensor captures more information than the mouse can send. But the sensor itself can create unwanted negative/positive acceleration, too. Some laser sensors skip on certain surfaces. And there's drivers and firmware that can change the accel, too. It depends on the mouse.

A IME 3.0 without USB-HZ patch will give you negative acceleration if you move it too fast too far, although it has only 400DPI.
A Deathadder on the other hand theoretically performs better at 1800 DPI than at 450DPI.
Do you use 1800dpi? And how many centimetres for 180?
Parent
900dpi, 12,5cm/180°
Parent
what is the mouse is 16bit
Parent
deathadder is a weird mouse, it works best at 1800dpi (up to 4m/s) but ET doesnt like that high dpi. using aborts dinput fixed the problem though.
Parent
Yes it did. But I find it hard to work with 1800dpi anyway.
Parent
same here, 900dpi is fine after i raised my sens abit. It would still skip a lot when i used my old send :'(
Parent
working fine for me, 450dpi 500hz 6/11 in windows and 3 ingame
Parent
it skipped when i used 450dpi sens 1.8
Parent
skippes = laggy movement on mouse?

for me its smooth, but when i drag my mouse really really fast, sometimes the crosshair goes up in air :p
Parent
nah, i want to do a 180 but i end up looking at the sky or the floor. Its not negative accel, just the mouse reaching the max speed. Afaik deathadder does 4m/s @ 1800dpi, 2m/s @ 900 and only 1m/s at 450 (same as copperhead and other lasershit). Its working fine @ 900dpi using aborts direct input thingy (running 71fps/rmode6)
Parent
look my edit, i get that sometimes :p
but u used lower sens so =p
Parent
its the deathadder :) lower the dpi and you lower the performance of the mouse, though most ppl seem to stick to 900dpi, dunno anybody who uses 1800 :P

Well sens 3 @ 450dpi is med sens for me :)
Parent
I dont like the feeling in 900dpi, guess cuz Im used to the 400 / 450 dpi mode.
so mx518 should be a better choice for me then?
Parent
All i'm saying is that deathadder works best on 1800dpi. I hate telling ppl to change their settings :)
Parent
yeah i understand what u mean :p but i wont change any settings or mouse anyway. I feel good with my settings and my random config :p
Parent
overdrive, it is possible to use the DeathAdder at 1800, but at same time at 450 CPI, without any Razerdriver involved. If you ever come to Utrecht, PM me and I'll show you how. I won't be able to explain it by writing, you just have to see it. At 1800 CPI the DA performs the best, but you can convert the 1800 to 450 CPI. So eventhough it performs at 1800, it will feel like 450. It won't skip, nor give you negative acceleration. Ofcourse you'll have to apply the Accelfix.exe and
Mousesensitivity 10
Mousespeed 0
MouseThreshold1 0
MouseThreshold2 0

The program of abort is not necessary anymore. Again if you ever come to Utrecht let me know.
Parent
well put it to 1800dpi and lower windows sens would do the trick.

QuoteI won't be able to explain it by writing, you just have to see it.


Lol i'm not comming to utrecht x'D da works fine over here :)
Parent
Well of course lowering the Windows sens would do the trick, but then you won't have the "perfect" 1:1 ratio. Besides you'll loose peformance with the DA when lowering the windows sens. Someone tested this and explained it thoroughly, though I lost the link.
But with the method I use it is possible to leave Windows sens at default e.g 10 while still using 1800 cpi. I'll see if I will be able to explain it via writing, will PM you then.
Parent
i'd appreciate some confirmation; or proof otherwise.

but imagine your crosshair on your desktop behind the game, it tries to stay centred but when it reaches the edge it can't go any further. this is why a higher resolution and/or lower dpi reduce negative accel.

also, whether games use direct input or not decides whether aim is calculated like this, therefore all games based on the q3 engine can suffer from negative acceleration unless set up correctly.

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