Uh, as a network programmer and the author of several popular open source tools, I can safely say this guy is out to lunch. Windows users already have raw network access. They just have to use a different API set. (NDIS)
Secondly, raw sockets are necessary for any heavywieght network app. Tell me the socket call to send out an ICMP router discovery packet? How do I specify the use of specific TCP options without raw socket calls?
Why do we publish this sludge on slashdot?
This article totally misses the point. It focuses on what we can see clearly and misses why we want such high refresh rates - aliasing.
To understand aliasing think about a wheel with a red dot on the edge. The wheel spins around once every second clockwise. If we were to snap a picture every second, the red dot would be in the same place every time. It we played back those pictures, the red dot would appear to be stationary.
Now suppose we decided to speed up our snapshots. If we took a picture every 3/4 of a second, the dot would appear to spin BACKWARDS at a rate of one turn every 4 seconds. Accoring to nyquist, we have to take a picture at twice the rate to make sure we don't have aliasing.
People's eyes take snapshots at about 30 frames a second (what he should have said in the article), but not everyone's. Especially people who use computers all the time (they speed up your sampling rate). It is not uncommon for a gamer to have a sampling rate of 48-49 frames a second. That means you need to be pumping out near 100 frames a second to compensate.
One of the reasons it is nearly impossible to fool someone that a picture is a real world object is because of aliasing. There is a special section of your brain that performs anti-aliasing. Images are delayed in this section until the anti-aliasing is performed. If Anti-Aliasing can't be performed, you feel sick. (As in some of those games we all play or when you put your monitor in 56Hz mode). If this section of the brain doesn't detect any jitter, it just passes the image straight through making your response time faster. This is why good gamers turn down the detail in preference for faster frame rates.
Sorry dude, you are WAY off the mark.
anonpoet
Slashdot Mirror
The last guy that tried that went to jail. I wish we could. I could fix code red in two hours.
Uh, as a network programmer and the author of several popular open source tools, I can safely say this guy is out to lunch. Windows users already have raw network access. They just have to use a different API set. (NDIS) Secondly, raw sockets are necessary for any heavywieght network app. Tell me the socket call to send out an ICMP router discovery packet? How do I specify the use of specific TCP options without raw socket calls? Why do we publish this sludge on slashdot?
Free software. good. ook download with cable modem. mmmmmmmmmmmm.
This article totally misses the point. It focuses on what we can see clearly and misses why we want such high refresh rates - aliasing. To understand aliasing think about a wheel with a red dot on the edge. The wheel spins around once every second clockwise. If we were to snap a picture every second, the red dot would be in the same place every time. It we played back those pictures, the red dot would appear to be stationary. Now suppose we decided to speed up our snapshots. If we took a picture every 3/4 of a second, the dot would appear to spin BACKWARDS at a rate of one turn every 4 seconds. Accoring to nyquist, we have to take a picture at twice the rate to make sure we don't have aliasing. People's eyes take snapshots at about 30 frames a second (what he should have said in the article), but not everyone's. Especially people who use computers all the time (they speed up your sampling rate). It is not uncommon for a gamer to have a sampling rate of 48-49 frames a second. That means you need to be pumping out near 100 frames a second to compensate. One of the reasons it is nearly impossible to fool someone that a picture is a real world object is because of aliasing. There is a special section of your brain that performs anti-aliasing. Images are delayed in this section until the anti-aliasing is performed. If Anti-Aliasing can't be performed, you feel sick. (As in some of those games we all play or when you put your monitor in 56Hz mode). If this section of the brain doesn't detect any jitter, it just passes the image straight through making your response time faster. This is why good gamers turn down the detail in preference for faster frame rates. Sorry dude, you are WAY off the mark. anonpoet