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Effectively calibrating your mouse DPI to your preference via league settings or mouse software.

Blessed Noodles·3/21/2019, 4:50:12 AM·2 votes·2,905 views

I've been looking at pro hotkeys / settings and gaming set ups the past few days a few pro team articles have mentioned EDPI something that i was not fully aware of, Faker is one of the few known pro players to go past gaming software and use custom Mouse speed Client settings. So for now will be testing this concept based off Fakers 2019 EDPI of 245,000 on a 24.5" 1920 x 1080 240Hz monitor, whether or not this his actual EDPI value or if he changes monitors is hard to say but has been reported close through multiple sites.

The following concept i applied helped me work around gaming mouse software bugs and get a faster and effective DPI/EDPI that still felt really clean while keeping the scaling more consistent on the monitor itself, this helped me adjust my software dpi from 1400 to 2400 @ 500Hz polling rate and my EDPI from 70,000 to 216,000 (that's a full 146,000 jump), both my "Mouse speed" and "Camera move speed (Mouse)" jumped from 50 to 90 and dropped from 50 to 30 respectively to achieve these settings / scaling.

Don't worry if you don't have an adjustable mouse or any software that would allow you to do so, that's where league's in game settings come in handy as long as you know your native mouse dpi! (or any game that supports similar features).

You may be asking yourself a few questions, what's DPI/EDPI and what's the difference, what's polling rate and why not 1000Hz, what's the difference between 70,000 / 216,000 and why such a large jump or why I couldn't just keep the in-game client default values.

Okay so "DPI" is an abbreviation for "dots per inch" whereas "EDPI" is "Effective dots per inch" this refers to the pixel density and the rate at your mouse would move across the screen, polling rate ties in here because it's the rate at which your mouse reports back to your computer / monitor 500Hz being 2ms and 1000Hz being 1ms, I've chosen to stick with 500Hz polling rate cause 1000 Hz seems to be busted on some gaming mouse software's.

My original dpi through my mouse software was set to 1400 which with league client defaults of 50 these values gave me 70,000 EDPI, EDPI can be calculated by multiplying:

DPI x Mouse speed = **EDPI **

The same can be applied when adjusting camera move speed (Mouse)

For me I've always wen't up and down on my software dpi and couldn't find anything fast enough without being way to high or feeling slow, when i first started applying the EDPI concept i first shot for 240,000 as my monitor size is 24 Inch's @ 1920x1080p, this was absurdly high and gave me lots of issues, i reduced the mouse speed by 10 and 3 games later felt that this was at very least close to the **EXACT ** DPI/EDPI maximum i felt comfortable with (I've broken my wrist a lot and it feels weird making micro movements and i don't like it, the higher i went the harder or more noticeable this feeling was while trying to control the mouse).

So i went back to my calculator and punched in 240,000 - 10% = 216,000, this was the number that reducing leagues client had put me to and had determined a good match well it just so happens 216,000 / 50 = 4320, A number i cannot reach on my gaming mouse software due the native step multiplier being limited to steps of 50, unfortunately leagues client wasn't much help as the Mouse speed multipliers were also fixed step rates of 5, you can confirm this was the wanted / needed number for my mouse dpi by calculating: 4320x50.

When adjusting how fast my map scrolls In-game i shot for my original / default value of 70,000 and decided on 72,000 since 70,000 / 2400 = 29.16, another number you'll have troubles reaching. Thankfully this is a multiplier step of 1 so you shouldn't have much problems finding the sweet spot if adjusting your mouse makes your screen bounce around (This personally was a limiting factor before i adjusted it back down to 70,000 EDPI).

The last thing to note is that i could have left my Mouse speed setting to 40 and it still would've been nearly perfect, but there was a common number found at 2400 DPI for my gaming mouse software that allowed me to switch from 90 / 100 via Mouse speed giving me both exactly 216,000 and 240,000 EDPI respectively.

This concept varies with preference and hardware peripherals or physical injury's.

Edit: After a bit more research / math, the square root of my 24 inch 1080p monitor is 4,852,800 divide that by my screen size of 24 inch's and you get 202,200. I've went back and shot for 202,200 and got close with 202,500 EDPI

i got this by calculating:

1920² + 1080² / 24

Further more you can figure out your monitor PPI (pixels per inch) by using Pythagorean Theorem, the following equation is for my 24" 1920x1080p 75Hz monitor, (Hz rate does not affect the equation as far as i know).

√(1920² + 1080²) / 24

*The equation above only applies to screens / monitors that have square pixels.

I only played a quick 5 min custom game and Really like the feel, any micro-movement problems in my wrist or mouse jitter from hardware was drastically reduced while mouse accuracy was improved a fair bit.

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1 Comments

cactusDeepThroat8/11/2019, 4:18:52 PM1 votes

Bro... Half way through I was seriously debating if you are mentally ill or suffered some sort of brain injury haha. Wtf...?

I'm a CS player, so this talk about dpi, edpi, and sensitivity as well as hertz and all of the equations, I understand all of it and have understood it for years (just some background)

Anything you need to know about mouse settings is not complicated, really not at all. You made it unbelievably convoluted and unnecessarily complex. I am not even sure what the point of this post is, or what you were trying to figure out. If your goal is to mimic pro settings, I can already suggest that you don't mimic their mouse settings. Sensitivity is 100% preference. If your goal is to instead try and make your mouse feel smoother, then there isn't much you can do, except one small thing (i'll explain at end).

But first, all of your equations involving monitor size should be omitted. Monitor size will not affect your dpi or edpi, neither will the hertz of the monitor (lol). By the way, edpi is simply a way to compare sensitivities with other people, because it takes into account dpi. That's why if you were to ask someone, "What's your in game sensitivity?" and they only reply "50", you wouldn't actually know their sensitivity without knowing their dpi too. That's the entire purpose of edpi. It's not really a "thing" only a tool per se, for comparison.

Seriously, why did you bring in the Pythagorean theory into this though? When I was reading that, I was really laughing hard. What??????? were you thinking? It is completely unnecessary information, as is half of your math and equations tbh. It was interesting to read that someone went this far to learn something, but none of this shit matters in the pursuit of making your mouse smoother. Honest

You were correct about the polling rate of the mouse. 250hz is too slow, and 1000hz can potentially miss movements on some mice, making 500hz the safest choice. Zowie FK2 in particular has this problem. You should google the best DPI for your mouse's sensor model (people actually put a lot of time into this) and prioritize that to make sure all of your mouse movements are consistent. Then, once you find your mouse's optimal DPI (usually 400, 800, 1600), you adjust the speed from the in-game sensitivity slider. If you want it to be precise for some reason, then you can go into the game.cfg file and manually enter it yourself! The goal is to keep your DPI the same always across all games, and adjust the speed in-game.

Also never adjust Window's sensitivity from optimal settings! Put Windows sensitivity to 6/11 ticks, and remove mouse acceleration (tick off mouse precision) and you are good to go forever. No need to ever alter anything except in-game sensitivity.

Here is a nice video discussing the affects of higher DPI / lower DPI. At the end of the day I still recommend googling your mouse's optimal DPI and just using that https://www.youtube.com/watch?v=8XNUp70mDlQ