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post #21 of 31
Quote:
Originally Posted by dmasteR View Post

Actually DPI has a lot to do with your resolution. Too low of a DPI and you will be skipping pixels on a higher resolution screen.
S.M. is right, in 3D FPS game CPI and resolution are not correlated. There is no pixel skipping because movement isn't "by pixel" but "by angle", and every frame has different set of pixels.

Quote:
Originally Posted by dmasteR View Post

If you're playing CS 1.6, your best bet is to play at a lower resolution. 800x600 or 1024x768, I really dont suggest going above those resolutions though as registration is most optimal at the lower resolution.
It isn't true. In CS1.6 a server decides about hits registration so your screen resolution is irrelevant.

Quote:
Originally Posted by dmasteR View Post

Since you're on the Xai, you actually dont want to use 400 DPI. You want to make sure you use intervals of 90. Because you're at 1920x1080 I suggest you use 900dpi on that mice.
This isn't necessary. Xai doesn't interpolate CPI, it simply rounds it down to nearest hardware (sensor) CPI step, for example 900 and 950 are the same.
Edited by Glymbol - 11/11/11 at 9:31am
post #22 of 31
Quote:
Originally Posted by Glymbol View Post

It isn't true. In CS1.6 a server decides about hits registration so your screen resolution is irrelevant.
This isn't necessary. Xai doesn't interpolate CPI, it simply rounds it down to nearest hardware (sensor) CPI step, for example 900 and 950 are the same.
Quote:
Originally Posted by Glymbol View Post

S.M. is right, in 3D FPS game CPI and resolution are not correlated. There is no pixel skipping because movement isn't "by pixel" but "by angle", and every frame has different set of pixels.

Ahh yes, you're right. Completely forgot about that. 3D mouse movements use angles instead of
Quote:
Originally Posted by Glymbol View Post

It isn't true. In CS1.6 a server decides about hits registration so your screen resolution is irrelevant.

I should of probably explained myself better here. It was early in morning and I only had two hours of sleep.
You're correct, but because of the way the engine was built (goldsrc) models are marginally larger on small resolutions making them easier to hit.
Quote:
Originally Posted by Glymbol View Post

This isn't necessary. Xai doesn't interpolate CPI, it simply rounds it down to nearest hardware (sensor) CPI step, for example 900 and 950 are the same.

Xai runs in intervals of 90, so lets take your example 900 and 950 DPI. 900 DPI would be a native DPI as its in the form of a 90 interval, but when setting it to 950, the sensor is most likely actually set to 990 DPI, and the MCU does the math. So you're still getting 950 DPI. They are not the same.
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post #23 of 31
Cloth mouse pads are perfectly fine for laser and optical lenses.

Laser and optical lenses view a plane as a 2D image, varying in size for different DPI/PPI. The spaces between the fibers aren't measured for depth.
Quote:
Resolution

The resolution of your screen tell you the number of pixels of a 2D plane. The fov tells you what portion of the view sphere is projected to that plane. Due to this projection, the view is compressed in the center and dilated at the boundary (which means that pixels in the center express wider angles than those at the boundary. If you think it should be the inverse, make a drawing, or think twice).

To put some numbers down, let's make an example only on one dimension: If you have an horizontal fov of 90 and play at 1680, a pixel will span (on average) ~0.05 degrees.

Mouse DPI

The mouse DPI determines how many ticks the mouse gets by moving it by one inch. By fixing a certain sensitivity (x inches per 360 degrees), you can compute the smallest angle you can rotate. I made a graph to show this:
http://n.ethz.ch/student/gnoris/down..._precision.png

With a 400DPI mouse, most people will have a precision below 0.2 degrees.

High res, low DPI, is this a problem?

No. With low DPI and high res, there is no influence of the resolution over the aiming capabilities.

Consider you moving your mouse. Your mouse input gets converted to the game internal representation of where your character is aiming, and than, based on it, a representation of the world is rendered. How accurate this representation is depends on the resolution, but such resolution will not influence the internal representation (you will always hit that spot, no matter how many pixels are used to represent that spot).

So the real question is if 400DPI is enough, or not, and I think that with all IE3.0 used among pros, this question should not be a concern.

What *might* be a problem is the inverse, high DPI and low resolution. In this scenario your mouse is capable of expressing rotations that on your screen look all the same, as it is simply too low res for representing them. This however is science fiction for quake, as nobody really cares about high DPI mice, and nobody plays on 200x150 screens.
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post #24 of 31
Quote:
Originally Posted by Glymbol View Post

S.M. is right, in 3D FPS game CPI and resolution are not correlated. There is no pixel skipping because movement isn't "by pixel" but "by angle", and every frame has different set of pixels.

Nonetheless, you will suffer from pixelskipping if the ingame-sens is too high.
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post #25 of 31
Quote:
Originally Posted by S.M. View Post

Cloth mouse pads are perfectly fine for laser and optical lenses.
Laser and optical lenses view a plane as a 2D image, varying in size for different DPI/PPI. The spaces between the fibers aren't measured for depth.
-snipped

Have you actually used a Laser mice on a cloth pad? Jitters and skips constantly on my QCK+

Would love for you to explain why that is seeing as how it's fine according to you.

It's been gone over multiple times, laser sensors do not work well on cloth pads period. The spaces between the fibers aren't measured for depth, but they are measured and taken into count.
Quote:
Basically, because the laser is a uniform tight beam, it reflects more detail from minor surface defects and textures, even on what normal LED illumination shows as uniform-color smooth shiny surfaces (like white board), resulting in, "20x times the tracking power of optical." (That is, it can navigate on surfaces with 20x smaller surface features.) Logitech still warns that the "Laser still may not track on mirrored or clear surfaces, such as windowpane glass." But, at least one user claims that, "this mouse has had no issues with any surface I have tried it on, including a mirror."
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Edited by dmasteR - 11/12/11 at 6:24am
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post #26 of 31
Quote:
Originally Posted by thuNDa View Post

Nonetheless, you will suffer from pixelskipping if the ingame-sens is too high.
Sure but this shouldn't be called pixel skipping, and the reason is too high sensitivity not too low CPI. It's impossible to skip pixel in 3D game, it's explained well in S.M.'s post above.
Edited by Glymbol - 11/12/11 at 6:42am
post #27 of 31
Quote:
Originally Posted by Glymbol View Post

Sure but this shouldn't be called pixel skipping, and the reason is too high sensitivity not too low CPI. It's impossible to skip pixel in 3D game, it's explained well in S.M.'s post above.

why shouldn't it, when it's the only thing you notice to need more DPI?
Also the OP answered his own question already, when he writes that it feels smoother when he zooms(fov 40-50?) with half ingame-sens, but doubled DPI.
So the conclusion is, that a 400DPI mouse is NOT enough for his needs.
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post #28 of 31
Quote:
Originally Posted by thuNDa View Post

So the conclusion is, that a 400DPI mouse is NOT enough for his needs.
Conclusion could be: his sensitivity is too high. He can just lower it to have smooth turning and stay that way (with lower speed). If he want to maintain same speed then yes, 400 CPI is not enough for him.

If you want more speed then you need more CPI.
If you want more precision then you need to lower sensitivity.
If you want more precision and same speed then you need lower sensitivity and more CPI.

What I see repeated over and over again? "For greater precision you need more CPI". This is wrong. Using 400 CPI mouse I can have same precision as anybody with 5000 CPI mouse. Of course speed will be different. For example if he's doing 10cm/360° then I would be 10 * 5000 / 400 = 125cm/360° (extremely low sens).
Edited by Glymbol - 11/14/11 at 2:06pm
post #29 of 31
Quote:
Originally Posted by Glymbol View Post

Sure but this shouldn't be called pixel skipping, and the reason is too high sensitivity not too low CPI. It's impossible to skip pixel in 3D game, it's explained well in S.M.'s post above.

You know that 'mouse acceleration' is not acceleration, all mouse sensors are optical and the only reason why we say prediction instead of angle snapping or drift control is that it is the shortest word wink.gif
post #30 of 31
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