ET low DPI only?

Yesterday I was speccing a match on ETTV and a discussion started about DPI. One guy said only 400 to 800 DPI is good for ET.

Can anyone explain me exactly why because this guy couldn't make it clear for me.

The higher your DPI the more precise your mouse is(The more Dots it tracks per Inch). In my logitech Setpoint driver I can also change 'speed' and 'acceleration'. Everybody always told me turn acceleration off, this also seems pretty logic to me. So Now I have 'speed' in the logitech driver left and '/sensetivity' ingame those 2 can still make me a high or low sens player. No matter how high or low my DPI is.

Also we had a little discussion about what is better. To make it short you should take what feels good for you. High sens overall gives you better movement(or makes it easier to move faster) and low sens makes it easier to aim exact where you want.

Correct me on anything if I'm wrong.
Comments
51
this what feels most comfort for u =)
3500 dpi is ownage for me

no negative accel
Quote by AndersonMany gamers also believe mice with higher DPI values are better. Whilst technically true, most professional players prefer lower DPI (400) to limit recorded errors in their hand movements. A high DPI will increase the precision, but your miniscule mistakes also get magnified.
Thanks thats what I was searching for
Parent
I have drawn a picture that explains Andersons thoughts:

image: bv74q0bnkqehzq6vu



Also some DPI values may cause some sort of mouse acceleration, but I don't know about the details.
Parent
Your paint skills rock. I bet your draw superhuman aimers aim without any tools from paint!
Parent
I think speed in the setpoint driver is the exact same as...

image: DeaP6

... which you'll always want at the 6th notch.
Why do you always want it on the 6th notch?
Parent
because its simply the best?
Parent
Yeah, oke it is the best I accept that. But why?
Parent
Quote by razerblueprintsBelow 6th notch -> windows throws away input data, you effectively lose DPI from the mouse (but not in games that use DirectInput for mouse movements)
Above 6th notch -> windows extrapolates input data, you get pixel skipping (but not in games that use DirectInput for mouse movements)
6th notch -> windows uses the input data in a 1:1 ratio, so one measure of movement data from your mouse translates to 1 pixel of cursor movement.
Parent
now i see why scarzy gave me a lecture about using 5/11 although i find it perfectly fine to aim with :_D
Parent
ITS ALL BETWEEN ZEH EARS!!!!!!!!!!
That's what she said
Parent
h8m3 made some excel sheet once where you could find out what dpi you'd actually need, as it depends on the screen resolution, fov and the sensitivity.

Basically: The higher your screen resolution, the higher your dpi have to be, and the higher your sens, the higher your dpi have to be. So high sens + high screen resolution = megha dpi needed!

However, as most players use a quite low sensitivity and don't play at really high resolutions, 400 dpi are enough most of the times.

That's just the stuff I remember from some comments and journals by h8m3 and Mztik, could be wrong afterall!

Edit: Here's the Excel file http://www.ba.onlinestereo.org/Tools/DPI.xls
thanks to siril
I'm going to try to find this excel sheet.
Parent
It was called DPIz.xls, but I don't appear to have it on my pc anymore. :(
Parent
I don't think you "need" a high DPI if you use a high res, but using a higher resolution allows you to use a higher DPI without getting the "cursor hitting side of screen" bug. To make it short, ET registers mouse movement by allowing your mouse to move freely around your desktop but returning it to the center every so often (n times per second). If your DPI is too high, the cursor has time to hit the side of the screen before it is returned to the center, causing extremely noticeable negative acceleration when doing fast turns.

At least this is how I heard it from a friend of mine, and I also recall reading up on the subject somewhere. There's still a possibility that I'm completely wrong, and if that's the case, then feel free to correct me.
Parent
Ehm, didn't quite get it, could be because I'm stuck in some channel marketing shit for uni though.

However, if your dpi aren't high enough for your resolution, you simply skip pixels and can't hit every pixel on the screen. Simple as that.

Well, no idea how things are calculated but it works a little like this I guess:

400 dpi -> 400 pixel -> you can hit every single pixel
400 dpi -> 800 pixel -> you can only hit every second pixel

'basically' :-P
Parent
so at 450dpi and 800x600res u would hit ever 1.5pixel?

if i understood u right
Parent
Nono, you can't really compare dpi directly to the resolution. There are some weird calculations needed. Check perfo's link for that :-D

I just gave this 400/800 as a really basic example.

Maybe I still have the dpi.xls file on my other harddrive, will check for it tomorrow night.
Or maybe h8m3 manages to find this journal (is he even still around?)
Parent
http://www.ba.onlinestereo.org/Tools/DPI.xls
found it :)

oh and btw, what dpi does IME 3.0 have? :x google just gives me alot of diff values :x
Parent
Nice! That's the one I was talking about.

Edit: IME 3.0 uses 400 dpi (the new and the old version)
Parent
Now that I think of it, I'm not entirely sure what I said is true. Which is unfortunate, because I've been farming that explanation around for quite a bit.
However, I'm quite certain there was *something* related to negative acceleration that made it impractical to use high DPIs in ET. Of course that is if you don't use RInput.
Parent
ich würd gern von dir lernen. nimmst du mich in die schule des 1mal1 für et auf? gibst du kurse?

büdde :)
Parent
Haha, ich bin so schlecht momentan, von mir kann man garnix lernen.

Ich kann momentan nur groß reden und theoretischen Blödsinn von mir geben :->>
Parent
klingt gut ich bin dabei im blödsinn reden :PP! wir sehen uns online!
Parent
400dpi all fine here 2.666 sens can make 360 spin with little mouse movement and able to keep good control/snap/180 etc \m/
thats all bullshit i use 1800 dpi (supposed to be bad) and 3/11 (supposed to be bad) windows and pwn the shit out of nabs, just use what you like
I use 500 in setpoint settings. When not firing sensitivity 2. When I fire sensitivity 1. :DDDDDDD
another thing is et doesn't support direct/raw input natively so higher dpi could cause negative acceleration on a low resolution, but you can avoid that with something like rinput from http://www.digitalise.net/
low resolution only?
Parent
well the higher the screen resolution the less it will happen yeah

if you imagine the center of your screen to be this o: [-o-]
the larger your resolution the further it is from the edges of the screen [--o--]

so the further your cursor can move before it skips off the edge of the screen, which is basically what causes neg. accel, as the extra gets carried over onto the next update loop
Parent
Thx to Prefo and ijnx

B = ( 360 * tan[ F/2 ] ) / ( pi * W * M )

B = sensitivity (cvar)
F = fov
W = screen res width
M = m_yaw

R = ( pi * W ) / ( I * tan[ F / 2 ] )

where
W = screen resolution width
I = real sensitivity (distance per 360 turn)
F = horizontal fov

R = mouse resolution required


convert your sens to inches if you want R in units of dpi.
hmm but for example razer deathadder just let u choose from 450 900 1800 or 3500 dpi, what if ur R value gives u as result: 600.. or a value in between? which1 u choose then?
Parent
important question

rawinput + slac
does slac detect rawinput as a external program messing with et and therefore flaging it as a cheat ????
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