Thursday, May 21, 2009

Windows Geniuine Advantage Strikes Again!

Well, my mother's in a bit of a fix. Several of her programs on Windows XP refuse to run because she doesn't have Service Pack 3 installed. So, she tried installing it. Several times. Each time it failed she gets an "access denied" message. I blame the faulty Windows Genuine Advantage system that M$ hacked together.

So anyways, she'll want me to talk to M$ customer oppression because she can't hear on the phone. My brother once had to deal with M$ customer service to get the activation key for his copy of Windows XP. You know how if you call customer service and get an automated machine that does more to frustrate you than help? Well, my brother's experience was with M$ customer service was a new level above that!

Building Limits: Are Some of Them Sane?

We all know that you can't build above 4096m in Second Life, but this building limit has some valid reasoning behind it. Why? Floating point accuracy. Floating Point numbers are, in computer terms, non-whole numbers such as 1.5, 2.625, or 3.14159. Computers are unable to represent them with full accuracy, and a few different systems are used to do so. Each of these systems has numbers that they cannot represent. This results in odd little bugs from time to time, such as prim drift.

These errors are hardly noticeable at ground level, but as you go up in height, they begin to become more apparent. At 5,000m, they become even more noticeable. At 1,000,000 meters up, things are just insane, as you can see below: