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Logitech G303 Daedalus Apex Gaming Mouse - Page 399

post #3981 of 7008
well you know that the sensor has to keep some kind of buffer of unsent data because otherwise extremely slow speeds would fail to register anything at all, or you would get weird aliasing problems at speed

if that buffer hits a point where 1 level of difference between images results in 1 pixel output, a perfectly still mouse would be sending outputs due to sensor image noise

so for sure they need to make 4 or 16 or even more levels of image difference correspond to 1 pixel of output, which reduces the sensitivity, much like 4/11 or 3/11 on the windows slider

if you went above that it would start to move even when the sensor is still

so they have two choices: a deadzone, which hurts responsiveness slightly, versus finding a way to have more levels of image difference

it turns out you can invent levels of image difference by interpolating the sensor image data, but this is computationally expensive if you're going to use a function that plays well with sampling theorem and is also correlation friendly

so (at least sometimes, and I've seen this in patents) they interpolate the correlation array instead, using a function purpose built for interpolating correlation arrays

this gives them more correlation results from which to divine the abstract movement value, but because interpolation essentially makes a guess about where the noise floor is, it introduces more jitter.

it's basically a smarter way of multiplying the strength of movements, basically an attempt to "un-quantize" data by doing the equivalent of doing fractional amounts of image shifting for comparisons, but as a result it adds more noise because interpolation always introduces artefacts (unless you have infinite samples yadda yadda) -- It's just not the kind of artefact that shows up when the correlation array is perfectly centered (i.e. mouse is sitting still).
Edited by wareya - 9/27/15 at 3:14pm
post #3982 of 7008
Quote:
Originally Posted by Ufasas View Post

So how deformed your hand is? Lol
I believe I posted a photo in another thread but I'll post one here...
Swollen middle finger and ring finger joints. Middle finger is bent due to edge. All in 5 months of osu.
Edited by Zenith Phantasm - 9/27/15 at 7:25pm
post #3983 of 7008
Is playing at 1440x1080 no scaling less efficient than just playing on 1080p if thats my monitors native res ? Fullscreen ?


also LOL whats the verdict you guys get really confusing when I ask this but please keep answer simple

should I 1000 DPI .8 sens
or 400 dpi 2.1 sens

I just want it to be as reliable and efficient as possible
post #3984 of 7008
How in the world did it swell and bend your middle finger?!
Do you use your middle finger to grip the side of the mouse?
post #3985 of 7008
Quote:
Originally Posted by wareya View Post

well you know that the sensor has to keep some kind of buffer of unsent data because otherwise extremely slow speeds would fail to register anything at all, or you would get weird aliasing problems at speed

if that buffer hits a point where 1 level of difference between images results in 1 pixel output, a perfectly still mouse would be sending outputs due to sensor image noise

so for sure they need to make 4 or 16 or even more levels of image difference correspond to 1 pixel of output, which reduces the sensitivity, much like 4/11 or 3/11 on the windows slider

if you went above that it would start to move even when the sensor is still

so they have two choices: a deadzone, which hurts responsiveness slightly, versus finding a way to have more levels of image difference

it turns out you can invent levels of image difference by interpolating the sensor image data, but this is computationally expensive if you're going to use a function that plays well with sampling theorem and is also correlation friendly

so (at least sometimes, and I've seen this in patents) they interpolate the correlation array instead, using a function purpose built for interpolating correlation arrays

this gives them more correlation results from which to divine the abstract movement value, but because interpolation essentially makes a guess about where the noise floor is, it introduces more jitter.

it's basically a smarter way of multiplying the strength of movements, basically an attempt to "un-quantize" data by doing the equivalent of doing fractional amounts of image shifting for comparisons, but as a result it adds more noise because interpolation always introduces artefacts (unless you have infinite samples yadda yadda) -- It's just not the kind of artefact that shows up when the correlation array is perfectly centered (i.e. mouse is sitting still).

I'm not sure I understood any of what you just said....
post #3986 of 7008
well 8/11 windows sens slider doesn't introduce artifacts...
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post #3987 of 7008
Quote:
Originally Posted by Zenith Phantasm View Post

I believe I posted a photo in another thread but I'll post one here...
Swollen middle finger and ring finger joints. Middle finger is bent due to edge. All in 5 months of osu.

That has little to do with 302/303 shape. Go see a doctor.
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post #3988 of 7008
Quote:
Originally Posted by Zenith Phantasm View Post

Quote:
Originally Posted by Ufasas View Post

So how deformed your hand is? Lol
I believe I posted a photo in another thread but I'll post one here...
Swollen middle finger and ring finger joints. Middle finger is bent due to edge. All in 5 months of osu.

DAMN real physical evidence that the G303 deforms your hand into a rabid, arthritic type, within my age category aaskull.gif .
post #3989 of 7008
Quote:
Originally Posted by qsxcv View Post

well 8/11 windows sens slider doesn't introduce artifacts...

but it introduces pixel skipping, which is technically aliasing

the sensor has more data about the similarities of more positions than the computer receives as cursor movements, so it can switch out pixel skipping for jitter, or reduce jitter at a standstill in return for increased jitter while moving
post #3990 of 7008
i mean in 3d games, exactly multiplying counts by 2 does absolutely nothing provided you drop the in-game sens by the same factor of 2
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